QueryRequest (AWS SDK for Android

java.lang.Object
- com.amazonaws.AmazonWebServiceRequest
- - com.amazonaws.services.dynamodbv2.model.QueryRequest

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable
```
public class QueryRequest
extends AmazonWebServiceRequest
implements java.io.Serializable
```
The Query operation finds items based on primary key values. You can query any table or secondary index that has a composite primary key (a partition key and a sort key).

Use the KeyConditionExpression parameter to provide a specific value for the partition key. The Query operation will return all of the items from the table or index with that partition key value. You can optionally narrow the scope of the Query operation by specifying a sort key value and a comparison operator in KeyConditionExpression. To further refine the Query results, you can optionally provide a FilterExpression. A FilterExpression determines which items within the results should be returned to you. All of the other results are discarded.

A Query operation always returns a result set. If no matching items are found, the result set will be empty. Queries that do not return results consume the minimum number of read capacity units for that type of read operation.

DynamoDB calculates the number of read capacity units consumed based on item size, not on the amount of data that is returned to an application. The number of capacity units consumed will be the same whether you request all of the attributes (the default behavior) or just some of them (using a projection expression). The number will also be the same whether or not you use a FilterExpression.

Query results are always sorted by the sort key value. If the data type of the sort key is Number, the results are returned in numeric order; otherwise, the results are returned in order of UTF-8 bytes. By default, the sort order is ascending. To reverse the order, set the ScanIndexForward parameter to false.

A single Query operation will read up to the maximum number of items set (if using the Limit parameter) or a maximum of 1 MB of data and then apply any filtering to the results using FilterExpression. If LastEvaluatedKey is present in the response, you will need to paginate the result set. For more information, see Paginating the Results in the Amazon DynamoDB Developer Guide.

FilterExpression is applied after a Query finishes, but before the results are returned. A FilterExpression cannot contain partition key or sort key attributes. You need to specify those attributes in the KeyConditionExpression.

A Query operation can return an empty result set and a LastEvaluatedKey if all the items read for the page of results are filtered out.

You can query a table, a local secondary index, or a global secondary index. For a query on a table or on a local secondary index, you can set the ConsistentRead parameter to true and obtain a strongly consistent result. Global secondary indexes support eventually consistent reads only, so do not specify ConsistentRead when querying a global secondary index.

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor and Description

QueryRequest()
Default constructor for QueryRequest object.

QueryRequest(java.lang.String tableName)
Constructs a new QueryRequest object.

Constructors
Constructor and Description
`QueryRequest()` Default constructor for QueryRequest object.
`QueryRequest(java.lang.String tableName)` Constructs a new QueryRequest object.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`QueryRequest`	`addExclusiveStartKeyEntry(java.lang.String key, AttributeValue value)` The primary key of the first item that this operation will evaluate.
`QueryRequest`	`addExpressionAttributeNamesEntry(java.lang.String key, java.lang.String value)` One or more substitution tokens for attribute names in an expression.
`QueryRequest`	`addExpressionAttributeValuesEntry(java.lang.String key, AttributeValue value)` One or more values that can be substituted in an expression.
`QueryRequest`	`addKeyConditionsEntry(java.lang.String key, Condition value)` This is a legacy parameter.
`QueryRequest`	`addQueryFilterEntry(java.lang.String key, Condition value)` This is a legacy parameter.
`QueryRequest`	`clearExclusiveStartKeyEntries()` Removes all the entries added into ExclusiveStartKey.
`QueryRequest`	`clearExpressionAttributeNamesEntries()` Removes all the entries added into ExpressionAttributeNames.
`QueryRequest`	`clearExpressionAttributeValuesEntries()` Removes all the entries added into ExpressionAttributeValues.
`QueryRequest`	`clearKeyConditionsEntries()` Removes all the entries added into KeyConditions.
`QueryRequest`	`clearQueryFilterEntries()` Removes all the entries added into QueryFilter.
`boolean`	`equals(java.lang.Object obj)`
`java.util.List<java.lang.String>`	`getAttributesToGet()` This is a legacy parameter.
`java.lang.String`	`getConditionalOperator()` This is a legacy parameter.
`java.lang.Boolean`	`getConsistentRead()` Determines the read consistency model: If set to `true`, then the operation uses strongly consistent reads; otherwise, the operation uses eventually consistent reads.
`java.util.Map<java.lang.String,AttributeValue>`	`getExclusiveStartKey()` The primary key of the first item that this operation will evaluate.
`java.util.Map<java.lang.String,java.lang.String>`	`getExpressionAttributeNames()` One or more substitution tokens for attribute names in an expression.
`java.util.Map<java.lang.String,AttributeValue>`	`getExpressionAttributeValues()` One or more values that can be substituted in an expression.
`java.lang.String`	`getFilterExpression()` A string that contains conditions that DynamoDB applies after the `Query` operation, but before the data is returned to you.
`java.lang.String`	`getIndexName()` The name of an index to query.
`java.lang.String`	`getKeyConditionExpression()` The condition that specifies the key value(s) for items to be retrieved by the `Query` action.
`java.util.Map<java.lang.String,Condition>`	`getKeyConditions()` This is a legacy parameter.
`java.lang.Integer`	`getLimit()` The maximum number of items to evaluate (not necessarily the number of matching items).
`java.lang.String`	`getProjectionExpression()` A string that identifies one or more attributes to retrieve from the table.
`java.util.Map<java.lang.String,Condition>`	`getQueryFilter()` This is a legacy parameter.
`java.lang.String`	`getReturnConsumedCapacity()` Determines the level of detail about provisioned throughput consumption that is returned in the response:
`java.lang.Boolean`	`getScanIndexForward()` Specifies the order for index traversal: If `true` (default), the traversal is performed in ascending order; if `false`, the traversal is performed in descending order.
`java.lang.String`	`getSelect()` The attributes to be returned in the result.
`java.lang.String`	`getTableName()` The name of the table containing the requested items.
`int`	`hashCode()`
`java.lang.Boolean`	`isConsistentRead()` Determines the read consistency model: If set to `true`, then the operation uses strongly consistent reads; otherwise, the operation uses eventually consistent reads.
`java.lang.Boolean`	`isScanIndexForward()` Specifies the order for index traversal: If `true` (default), the traversal is performed in ascending order; if `false`, the traversal is performed in descending order.
`void`	`setAttributesToGet(java.util.Collection<java.lang.String> attributesToGet)` This is a legacy parameter.
`void`	`setConditionalOperator(ConditionalOperator conditionalOperator)` This is a legacy parameter.
`void`	`setConditionalOperator(java.lang.String conditionalOperator)` This is a legacy parameter.
`void`	`setConsistentRead(java.lang.Boolean consistentRead)` Determines the read consistency model: If set to `true`, then the operation uses strongly consistent reads; otherwise, the operation uses eventually consistent reads.
`void`	`setExclusiveStartKey(java.util.Map<java.lang.String,AttributeValue> exclusiveStartKey)` The primary key of the first item that this operation will evaluate.
`void`	`setExpressionAttributeNames(java.util.Map<java.lang.String,java.lang.String> expressionAttributeNames)` One or more substitution tokens for attribute names in an expression.
`void`	`setExpressionAttributeValues(java.util.Map<java.lang.String,AttributeValue> expressionAttributeValues)` One or more values that can be substituted in an expression.
`void`	`setFilterExpression(java.lang.String filterExpression)` A string that contains conditions that DynamoDB applies after the `Query` operation, but before the data is returned to you.
`void`	`setIndexName(java.lang.String indexName)` The name of an index to query.
`void`	`setKeyConditionExpression(java.lang.String keyConditionExpression)` The condition that specifies the key value(s) for items to be retrieved by the `Query` action.
`void`	`setKeyConditions(java.util.Map<java.lang.String,Condition> keyConditions)` This is a legacy parameter.
`void`	`setLimit(java.lang.Integer limit)` The maximum number of items to evaluate (not necessarily the number of matching items).
`void`	`setProjectionExpression(java.lang.String projectionExpression)` A string that identifies one or more attributes to retrieve from the table.
`void`	`setQueryFilter(java.util.Map<java.lang.String,Condition> queryFilter)` This is a legacy parameter.
`void`	`setReturnConsumedCapacity(ReturnConsumedCapacity returnConsumedCapacity)` Determines the level of detail about provisioned throughput consumption that is returned in the response:
`void`	`setReturnConsumedCapacity(java.lang.String returnConsumedCapacity)` Determines the level of detail about provisioned throughput consumption that is returned in the response:
`void`	`setScanIndexForward(java.lang.Boolean scanIndexForward)` Specifies the order for index traversal: If `true` (default), the traversal is performed in ascending order; if `false`, the traversal is performed in descending order.
`void`	`setSelect(Select select)` The attributes to be returned in the result.
`void`	`setSelect(java.lang.String select)` The attributes to be returned in the result.
`void`	`setTableName(java.lang.String tableName)` The name of the table containing the requested items.
`java.lang.String`	`toString()` Returns a string representation of this object; useful for testing and debugging.
`QueryRequest`	`withAttributesToGet(java.util.Collection<java.lang.String> attributesToGet)` This is a legacy parameter.
`QueryRequest`	`withAttributesToGet(java.lang.String... attributesToGet)` This is a legacy parameter.
`QueryRequest`	`withConditionalOperator(ConditionalOperator conditionalOperator)` This is a legacy parameter.
`QueryRequest`	`withConditionalOperator(java.lang.String conditionalOperator)` This is a legacy parameter.
`QueryRequest`	`withConsistentRead(java.lang.Boolean consistentRead)` Determines the read consistency model: If set to `true`, then the operation uses strongly consistent reads; otherwise, the operation uses eventually consistent reads.
`QueryRequest`	`withExclusiveStartKey(java.util.Map<java.lang.String,AttributeValue> exclusiveStartKey)` The primary key of the first item that this operation will evaluate.
`QueryRequest`	`withExpressionAttributeNames(java.util.Map<java.lang.String,java.lang.String> expressionAttributeNames)` One or more substitution tokens for attribute names in an expression.
`QueryRequest`	`withExpressionAttributeValues(java.util.Map<java.lang.String,AttributeValue> expressionAttributeValues)` One or more values that can be substituted in an expression.
`QueryRequest`	`withFilterExpression(java.lang.String filterExpression)` A string that contains conditions that DynamoDB applies after the `Query` operation, but before the data is returned to you.
`QueryRequest`	`withIndexName(java.lang.String indexName)` The name of an index to query.
`QueryRequest`	`withKeyConditionExpression(java.lang.String keyConditionExpression)` The condition that specifies the key value(s) for items to be retrieved by the `Query` action.
`QueryRequest`	`withKeyConditions(java.util.Map<java.lang.String,Condition> keyConditions)` This is a legacy parameter.
`QueryRequest`	`withLimit(java.lang.Integer limit)` The maximum number of items to evaluate (not necessarily the number of matching items).
`QueryRequest`	`withProjectionExpression(java.lang.String projectionExpression)` A string that identifies one or more attributes to retrieve from the table.
`QueryRequest`	`withQueryFilter(java.util.Map<java.lang.String,Condition> queryFilter)` This is a legacy parameter.
`QueryRequest`	`withReturnConsumedCapacity(ReturnConsumedCapacity returnConsumedCapacity)` Determines the level of detail about provisioned throughput consumption that is returned in the response:
`QueryRequest`	`withReturnConsumedCapacity(java.lang.String returnConsumedCapacity)` Determines the level of detail about provisioned throughput consumption that is returned in the response:
`QueryRequest`	`withScanIndexForward(java.lang.Boolean scanIndexForward)` Specifies the order for index traversal: If `true` (default), the traversal is performed in ascending order; if `false`, the traversal is performed in descending order.
`QueryRequest`	`withSelect(Select select)` The attributes to be returned in the result.
`QueryRequest`	`withSelect(java.lang.String select)` The attributes to be returned in the result.
`QueryRequest`	`withTableName(java.lang.String tableName)` The name of the table containing the requested items.

Methods inherited from class com.amazonaws.AmazonWebServiceRequest
clone, getCloneRoot, getCloneSource, getGeneralProgressListener, getRequestClientOptions, getRequestCredentials, getRequestMetricCollector, setGeneralProgressListener, setRequestCredentials, setRequestMetricCollector, withGeneralProgressListener, withRequestMetricCollector

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - QueryRequest
```
public QueryRequest()
```
    Default constructor for QueryRequest object. Callers should use the setter or fluent setter (with...) methods to initialize any additional object members.
  - QueryRequest
```
public QueryRequest(java.lang.String tableName)
```
    Constructs a new QueryRequest object. Callers should use the setter or fluent setter (with...) methods to initialize any additional object members.
    
    Parameters:
    
    tableName -
    The name of the table containing the requested items.
- Method Detail
  - getTableName
```
public java.lang.String getTableName()
```
    The name of the table containing the requested items.
    
    Constraints:
    Length: 3 - 255
    Pattern: [a-zA-Z0-9_.-]+
    
    Returns:
    
    The name of the table containing the requested items.
  - setTableName
```
public void setTableName(java.lang.String tableName)
```
    The name of the table containing the requested items.
    
    Constraints:
    Length: 3 - 255
    Pattern: [a-zA-Z0-9_.-]+
    
    Parameters:
    
    tableName -
    The name of the table containing the requested items.
  - withTableName
```
public QueryRequest withTableName(java.lang.String tableName)
```
    The name of the table containing the requested items.
    
    Returns a reference to this object so that method calls can be chained together.
    Constraints:
    Length: 3 - 255
    Pattern: [a-zA-Z0-9_.-]+
    
    Parameters:
    
    tableName -
    The name of the table containing the requested items.
    
    Returns:
    
    A reference to this updated object so that method calls can be chained together.
  - getIndexName
```
public java.lang.String getIndexName()
```
    The name of an index to query. This index can be any local secondary index or global secondary index on the table. Note that if you use the IndexName parameter, you must also provide TableName.
    
    Constraints:
    Length: 3 - 255
    Pattern: [a-zA-Z0-9_.-]+
    
    Returns:
    
    The name of an index to query. This index can be any local secondary index or global secondary index on the table. Note that if you use the IndexName parameter, you must also provide TableName.
  - setIndexName
```
public void setIndexName(java.lang.String indexName)
```
    The name of an index to query. This index can be any local secondary index or global secondary index on the table. Note that if you use the IndexName parameter, you must also provide TableName.
    
    Constraints:
    Length: 3 - 255
    Pattern: [a-zA-Z0-9_.-]+
    
    Parameters:
    
    indexName -
    The name of an index to query. This index can be any local secondary index or global secondary index on the table. Note that if you use the IndexName parameter, you must also provide TableName.
  - withIndexName
```
public QueryRequest withIndexName(java.lang.String indexName)
```
    The name of an index to query. This index can be any local secondary index or global secondary index on the table. Note that if you use the IndexName parameter, you must also provide TableName.
    
    Returns a reference to this object so that method calls can be chained together.
    Constraints:
    Length: 3 - 255
    Pattern: [a-zA-Z0-9_.-]+
    
    Parameters:
    
    indexName -
    The name of an index to query. This index can be any local secondary index or global secondary index on the table. Note that if you use the IndexName parameter, you must also provide TableName.
    
    Returns:
    
    A reference to this updated object so that method calls can be chained together.
  - getSelect
```
public java.lang.String getSelect()
```
    The attributes to be returned in the result. You can retrieve all item attributes, specific item attributes, the count of matching items, or in the case of an index, some or all of the attributes projected into the index.
    - ALL_ATTRIBUTES - Returns all of the item attributes from the specified table or index. If you query a local secondary index, then for each matching item in the index DynamoDB will fetch the entire item from the parent table. If the index is configured to project all item attributes, then all of the data can be obtained from the local secondary index, and no fetching is required.
    - ALL_PROJECTED_ATTRIBUTES - Allowed only when querying an index. Retrieves all attributes that have been projected into the index. If the index is configured to project all attributes, this return value is equivalent to specifying ALL_ATTRIBUTES.
    - COUNT - Returns the number of matching items, rather than the matching items themselves.
    - SPECIFIC_ATTRIBUTES - Returns only the attributes listed in AttributesToGet. This return value is equivalent to specifying AttributesToGet without specifying any value for Select.
      
      If you query or scan a local secondary index and request only attributes that are projected into that index, the operation will read only the index and not the table. If any of the requested attributes are not projected into the local secondary index, DynamoDB will fetch each of these attributes from the parent table. This extra fetching incurs additional throughput cost and latency.
      
      If you query or scan a global secondary index, you can only request attributes that are projected into the index. Global secondary index queries cannot fetch attributes from the parent table.
    If neither Select nor AttributesToGet are specified, DynamoDB defaults to ALL_ATTRIBUTES when accessing a table, and ALL_PROJECTED_ATTRIBUTES when accessing an index. You cannot use both Select and AttributesToGet together in a single request, unless the value for Select is SPECIFIC_ATTRIBUTES. (This usage is equivalent to specifying AttributesToGet without any value for Select.)
    
    If you use the ProjectionExpression parameter, then the value for Select can only be SPECIFIC_ATTRIBUTES. Any other value for Select will return an error.
    
    Constraints:
    Allowed Values: ALL_ATTRIBUTES, ALL_PROJECTED_ATTRIBUTES, SPECIFIC_ATTRIBUTES, COUNT
    Returns:
    The attributes to be returned in the result. You can retrieve all item attributes, specific item attributes, the count of matching items, or in the case of an index, some or all of the attributes projected into the index.
    
    ALL_ATTRIBUTES - Returns all of the item attributes from the specified table or index. If you query a local secondary index, then for each matching item in the index DynamoDB will fetch the entire item from the parent table. If the index is configured to project all item attributes, then all of the data can be obtained from the local secondary index, and no fetching is required.
    
    ALL_PROJECTED_ATTRIBUTES - Allowed only when querying an index. Retrieves all attributes that have been projected into the index. If the index is configured to project all attributes, this return value is equivalent to specifying ALL_ATTRIBUTES.
    
    COUNT - Returns the number of matching items, rather than the matching items themselves.
    
    SPECIFIC_ATTRIBUTES - Returns only the attributes listed in AttributesToGet. This return value is equivalent to specifying AttributesToGet without specifying any value for Select.
    
    If you query or scan a local secondary index and request only attributes that are projected into that index, the operation will read only the index and not the table. If any of the requested attributes are not projected into the local secondary index, DynamoDB will fetch each of these attributes from the parent table. This extra fetching incurs additional throughput cost and latency.
    
    If you query or scan a global secondary index, you can only request attributes that are projected into the index. Global secondary index queries cannot fetch attributes from the parent table.
    
    If neither Select nor AttributesToGet are specified, DynamoDB defaults to ALL_ATTRIBUTES when accessing a table, and ALL_PROJECTED_ATTRIBUTES when accessing an index. You cannot use both Select and AttributesToGet together in a single request, unless the value for Select is SPECIFIC_ATTRIBUTES. (This usage is equivalent to specifying AttributesToGet without any value for Select.)
    
    If you use the ProjectionExpression parameter, then the value for Select can only be SPECIFIC_ATTRIBUTES. Any other value for Select will return an error.
    See Also:
    
    Select
  - setSelect
```
public void setSelect(java.lang.String select)
```
    The attributes to be returned in the result. You can retrieve all item attributes, specific item attributes, the count of matching items, or in the case of an index, some or all of the attributes projected into the index.
    - ALL_ATTRIBUTES - Returns all of the item attributes from the specified table or index. If you query a local secondary index, then for each matching item in the index DynamoDB will fetch the entire item from the parent table. If the index is configured to project all item attributes, then all of the data can be obtained from the local secondary index, and no fetching is required.
    - ALL_PROJECTED_ATTRIBUTES - Allowed only when querying an index. Retrieves all attributes that have been projected into the index. If the index is configured to project all attributes, this return value is equivalent to specifying ALL_ATTRIBUTES.
    - COUNT - Returns the number of matching items, rather than the matching items themselves.
    - SPECIFIC_ATTRIBUTES - Returns only the attributes listed in AttributesToGet. This return value is equivalent to specifying AttributesToGet without specifying any value for Select.
      
      If you query or scan a local secondary index and request only attributes that are projected into that index, the operation will read only the index and not the table. If any of the requested attributes are not projected into the local secondary index, DynamoDB will fetch each of these attributes from the parent table. This extra fetching incurs additional throughput cost and latency.
      
      If you query or scan a global secondary index, you can only request attributes that are projected into the index. Global secondary index queries cannot fetch attributes from the parent table.
    If neither Select nor AttributesToGet are specified, DynamoDB defaults to ALL_ATTRIBUTES when accessing a table, and ALL_PROJECTED_ATTRIBUTES when accessing an index. You cannot use both Select and AttributesToGet together in a single request, unless the value for Select is SPECIFIC_ATTRIBUTES. (This usage is equivalent to specifying AttributesToGet without any value for Select.)
    
    If you use the ProjectionExpression parameter, then the value for Select can only be SPECIFIC_ATTRIBUTES. Any other value for Select will return an error.
    
    Constraints:
    Allowed Values: ALL_ATTRIBUTES, ALL_PROJECTED_ATTRIBUTES, SPECIFIC_ATTRIBUTES, COUNT
    Parameters:
    select -
    The attributes to be returned in the result. You can retrieve all item attributes, specific item attributes, the count of matching items, or in the case of an index, some or all of the attributes projected into the index.
    
    ALL_ATTRIBUTES - Returns all of the item attributes from the specified table or index. If you query a local secondary index, then for each matching item in the index DynamoDB will fetch the entire item from the parent table. If the index is configured to project all item attributes, then all of the data can be obtained from the local secondary index, and no fetching is required.
    
    ALL_PROJECTED_ATTRIBUTES - Allowed only when querying an index. Retrieves all attributes that have been projected into the index. If the index is configured to project all attributes, this return value is equivalent to specifying ALL_ATTRIBUTES.
    
    COUNT - Returns the number of matching items, rather than the matching items themselves.
    
    SPECIFIC_ATTRIBUTES - Returns only the attributes listed in AttributesToGet. This return value is equivalent to specifying AttributesToGet without specifying any value for Select.
    
    If you query or scan a local secondary index and request only attributes that are projected into that index, the operation will read only the index and not the table. If any of the requested attributes are not projected into the local secondary index, DynamoDB will fetch each of these attributes from the parent table. This extra fetching incurs additional throughput cost and latency.
    
    If you query or scan a global secondary index, you can only request attributes that are projected into the index. Global secondary index queries cannot fetch attributes from the parent table.
    
    If neither Select nor AttributesToGet are specified, DynamoDB defaults to ALL_ATTRIBUTES when accessing a table, and ALL_PROJECTED_ATTRIBUTES when accessing an index. You cannot use both Select and AttributesToGet together in a single request, unless the value for Select is SPECIFIC_ATTRIBUTES. (This usage is equivalent to specifying AttributesToGet without any value for Select.)
    
    If you use the ProjectionExpression parameter, then the value for Select can only be SPECIFIC_ATTRIBUTES. Any other value for Select will return an error.
    See Also:
    
    Select
  - withSelect
```
public QueryRequest withSelect(java.lang.String select)
```
    The attributes to be returned in the result. You can retrieve all item attributes, specific item attributes, the count of matching items, or in the case of an index, some or all of the attributes projected into the index.
    - ALL_ATTRIBUTES - Returns all of the item attributes from the specified table or index. If you query a local secondary index, then for each matching item in the index DynamoDB will fetch the entire item from the parent table. If the index is configured to project all item attributes, then all of the data can be obtained from the local secondary index, and no fetching is required.
    - ALL_PROJECTED_ATTRIBUTES - Allowed only when querying an index. Retrieves all attributes that have been projected into the index. If the index is configured to project all attributes, this return value is equivalent to specifying ALL_ATTRIBUTES.
    - COUNT - Returns the number of matching items, rather than the matching items themselves.
    - SPECIFIC_ATTRIBUTES - Returns only the attributes listed in AttributesToGet. This return value is equivalent to specifying AttributesToGet without specifying any value for Select.
      
      If you query or scan a local secondary index and request only attributes that are projected into that index, the operation will read only the index and not the table. If any of the requested attributes are not projected into the local secondary index, DynamoDB will fetch each of these attributes from the parent table. This extra fetching incurs additional throughput cost and latency.
      
      If you query or scan a global secondary index, you can only request attributes that are projected into the index. Global secondary index queries cannot fetch attributes from the parent table.
    If neither Select nor AttributesToGet are specified, DynamoDB defaults to ALL_ATTRIBUTES when accessing a table, and ALL_PROJECTED_ATTRIBUTES when accessing an index. You cannot use both Select and AttributesToGet together in a single request, unless the value for Select is SPECIFIC_ATTRIBUTES. (This usage is equivalent to specifying AttributesToGet without any value for Select.)
    
    If you use the ProjectionExpression parameter, then the value for Select can only be SPECIFIC_ATTRIBUTES. Any other value for Select will return an error.
    
    Returns a reference to this object so that method calls can be chained together.
    Constraints:
    Allowed Values: ALL_ATTRIBUTES, ALL_PROJECTED_ATTRIBUTES, SPECIFIC_ATTRIBUTES, COUNT
    Parameters:
    select -
    The attributes to be returned in the result. You can retrieve all item attributes, specific item attributes, the count of matching items, or in the case of an index, some or all of the attributes projected into the index.
    
    ALL_ATTRIBUTES - Returns all of the item attributes from the specified table or index. If you query a local secondary index, then for each matching item in the index DynamoDB will fetch the entire item from the parent table. If the index is configured to project all item attributes, then all of the data can be obtained from the local secondary index, and no fetching is required.
    
    ALL_PROJECTED_ATTRIBUTES - Allowed only when querying an index. Retrieves all attributes that have been projected into the index. If the index is configured to project all attributes, this return value is equivalent to specifying ALL_ATTRIBUTES.
    
    COUNT - Returns the number of matching items, rather than the matching items themselves.
    
    SPECIFIC_ATTRIBUTES - Returns only the attributes listed in AttributesToGet. This return value is equivalent to specifying AttributesToGet without specifying any value for Select.
    
    If you query or scan a local secondary index and request only attributes that are projected into that index, the operation will read only the index and not the table. If any of the requested attributes are not projected into the local secondary index, DynamoDB will fetch each of these attributes from the parent table. This extra fetching incurs additional throughput cost and latency.
    
    If you query or scan a global secondary index, you can only request attributes that are projected into the index. Global secondary index queries cannot fetch attributes from the parent table.
    
    If neither Select nor AttributesToGet are specified, DynamoDB defaults to ALL_ATTRIBUTES when accessing a table, and ALL_PROJECTED_ATTRIBUTES when accessing an index. You cannot use both Select and AttributesToGet together in a single request, unless the value for Select is SPECIFIC_ATTRIBUTES. (This usage is equivalent to specifying AttributesToGet without any value for Select.)
    
    If you use the ProjectionExpression parameter, then the value for Select can only be SPECIFIC_ATTRIBUTES. Any other value for Select will return an error.
    Returns:
    
    A reference to this updated object so that method calls can be chained together.
    
    See Also:
    
    Select
  - setSelect
```
public void setSelect(Select select)
```
    The attributes to be returned in the result. You can retrieve all item attributes, specific item attributes, the count of matching items, or in the case of an index, some or all of the attributes projected into the index.
    - ALL_ATTRIBUTES - Returns all of the item attributes from the specified table or index. If you query a local secondary index, then for each matching item in the index DynamoDB will fetch the entire item from the parent table. If the index is configured to project all item attributes, then all of the data can be obtained from the local secondary index, and no fetching is required.
    - ALL_PROJECTED_ATTRIBUTES - Allowed only when querying an index. Retrieves all attributes that have been projected into the index. If the index is configured to project all attributes, this return value is equivalent to specifying ALL_ATTRIBUTES.
    - COUNT - Returns the number of matching items, rather than the matching items themselves.
    - SPECIFIC_ATTRIBUTES - Returns only the attributes listed in AttributesToGet. This return value is equivalent to specifying AttributesToGet without specifying any value for Select.
      
      If you query or scan a local secondary index and request only attributes that are projected into that index, the operation will read only the index and not the table. If any of the requested attributes are not projected into the local secondary index, DynamoDB will fetch each of these attributes from the parent table. This extra fetching incurs additional throughput cost and latency.
      
      If you query or scan a global secondary index, you can only request attributes that are projected into the index. Global secondary index queries cannot fetch attributes from the parent table.
    If neither Select nor AttributesToGet are specified, DynamoDB defaults to ALL_ATTRIBUTES when accessing a table, and ALL_PROJECTED_ATTRIBUTES when accessing an index. You cannot use both Select and AttributesToGet together in a single request, unless the value for Select is SPECIFIC_ATTRIBUTES. (This usage is equivalent to specifying AttributesToGet without any value for Select.)
    
    If you use the ProjectionExpression parameter, then the value for Select can only be SPECIFIC_ATTRIBUTES. Any other value for Select will return an error.
    
    Constraints:
    Allowed Values: ALL_ATTRIBUTES, ALL_PROJECTED_ATTRIBUTES, SPECIFIC_ATTRIBUTES, COUNT
    Parameters:
    select -
    The attributes to be returned in the result. You can retrieve all item attributes, specific item attributes, the count of matching items, or in the case of an index, some or all of the attributes projected into the index.
    
    ALL_ATTRIBUTES - Returns all of the item attributes from the specified table or index. If you query a local secondary index, then for each matching item in the index DynamoDB will fetch the entire item from the parent table. If the index is configured to project all item attributes, then all of the data can be obtained from the local secondary index, and no fetching is required.
    
    ALL_PROJECTED_ATTRIBUTES - Allowed only when querying an index. Retrieves all attributes that have been projected into the index. If the index is configured to project all attributes, this return value is equivalent to specifying ALL_ATTRIBUTES.
    
    COUNT - Returns the number of matching items, rather than the matching items themselves.
    
    SPECIFIC_ATTRIBUTES - Returns only the attributes listed in AttributesToGet. This return value is equivalent to specifying AttributesToGet without specifying any value for Select.
    
    If you query or scan a local secondary index and request only attributes that are projected into that index, the operation will read only the index and not the table. If any of the requested attributes are not projected into the local secondary index, DynamoDB will fetch each of these attributes from the parent table. This extra fetching incurs additional throughput cost and latency.
    
    If you query or scan a global secondary index, you can only request attributes that are projected into the index. Global secondary index queries cannot fetch attributes from the parent table.
    
    If neither Select nor AttributesToGet are specified, DynamoDB defaults to ALL_ATTRIBUTES when accessing a table, and ALL_PROJECTED_ATTRIBUTES when accessing an index. You cannot use both Select and AttributesToGet together in a single request, unless the value for Select is SPECIFIC_ATTRIBUTES. (This usage is equivalent to specifying AttributesToGet without any value for Select.)
    
    If you use the ProjectionExpression parameter, then the value for Select can only be SPECIFIC_ATTRIBUTES. Any other value for Select will return an error.
    See Also:
    
    Select
  - withSelect
```
public QueryRequest withSelect(Select select)
```
    The attributes to be returned in the result. You can retrieve all item attributes, specific item attributes, the count of matching items, or in the case of an index, some or all of the attributes projected into the index.
    - ALL_ATTRIBUTES - Returns all of the item attributes from the specified table or index. If you query a local secondary index, then for each matching item in the index DynamoDB will fetch the entire item from the parent table. If the index is configured to project all item attributes, then all of the data can be obtained from the local secondary index, and no fetching is required.
    - ALL_PROJECTED_ATTRIBUTES - Allowed only when querying an index. Retrieves all attributes that have been projected into the index. If the index is configured to project all attributes, this return value is equivalent to specifying ALL_ATTRIBUTES.
    - COUNT - Returns the number of matching items, rather than the matching items themselves.
    - SPECIFIC_ATTRIBUTES - Returns only the attributes listed in AttributesToGet. This return value is equivalent to specifying AttributesToGet without specifying any value for Select.
      
      If you query or scan a local secondary index and request only attributes that are projected into that index, the operation will read only the index and not the table. If any of the requested attributes are not projected into the local secondary index, DynamoDB will fetch each of these attributes from the parent table. This extra fetching incurs additional throughput cost and latency.
      
      If you query or scan a global secondary index, you can only request attributes that are projected into the index. Global secondary index queries cannot fetch attributes from the parent table.
    If neither Select nor AttributesToGet are specified, DynamoDB defaults to ALL_ATTRIBUTES when accessing a table, and ALL_PROJECTED_ATTRIBUTES when accessing an index. You cannot use both Select and AttributesToGet together in a single request, unless the value for Select is SPECIFIC_ATTRIBUTES. (This usage is equivalent to specifying AttributesToGet without any value for Select.)
    
    If you use the ProjectionExpression parameter, then the value for Select can only be SPECIFIC_ATTRIBUTES. Any other value for Select will return an error.
    
    Returns a reference to this object so that method calls can be chained together.
    Constraints:
    Allowed Values: ALL_ATTRIBUTES, ALL_PROJECTED_ATTRIBUTES, SPECIFIC_ATTRIBUTES, COUNT
    Parameters:
    select -
    The attributes to be returned in the result. You can retrieve all item attributes, specific item attributes, the count of matching items, or in the case of an index, some or all of the attributes projected into the index.
    
    ALL_ATTRIBUTES - Returns all of the item attributes from the specified table or index. If you query a local secondary index, then for each matching item in the index DynamoDB will fetch the entire item from the parent table. If the index is configured to project all item attributes, then all of the data can be obtained from the local secondary index, and no fetching is required.
    
    ALL_PROJECTED_ATTRIBUTES - Allowed only when querying an index. Retrieves all attributes that have been projected into the index. If the index is configured to project all attributes, this return value is equivalent to specifying ALL_ATTRIBUTES.
    
    COUNT - Returns the number of matching items, rather than the matching items themselves.
    
    SPECIFIC_ATTRIBUTES - Returns only the attributes listed in AttributesToGet. This return value is equivalent to specifying AttributesToGet without specifying any value for Select.
    
    If you query or scan a local secondary index and request only attributes that are projected into that index, the operation will read only the index and not the table. If any of the requested attributes are not projected into the local secondary index, DynamoDB will fetch each of these attributes from the parent table. This extra fetching incurs additional throughput cost and latency.
    
    If you query or scan a global secondary index, you can only request attributes that are projected into the index. Global secondary index queries cannot fetch attributes from the parent table.
    
    If neither Select nor AttributesToGet are specified, DynamoDB defaults to ALL_ATTRIBUTES when accessing a table, and ALL_PROJECTED_ATTRIBUTES when accessing an index. You cannot use both Select and AttributesToGet together in a single request, unless the value for Select is SPECIFIC_ATTRIBUTES. (This usage is equivalent to specifying AttributesToGet without any value for Select.)
    
    If you use the ProjectionExpression parameter, then the value for Select can only be SPECIFIC_ATTRIBUTES. Any other value for Select will return an error.
    Returns:
    
    A reference to this updated object so that method calls can be chained together.
    
    See Also:
    
    Select
  - getAttributesToGet
```
public java.util.List<java.lang.String> getAttributesToGet()
```
    This is a legacy parameter. Use ProjectionExpression instead. For more information, see AttributesToGet in the Amazon DynamoDB Developer Guide.
    
    Returns:
    
    This is a legacy parameter. Use ProjectionExpression instead. For more information, see AttributesToGet in the Amazon DynamoDB Developer Guide.
  - setAttributesToGet
```
public void setAttributesToGet(java.util.Collection<java.lang.String> attributesToGet)
```
    This is a legacy parameter. Use ProjectionExpression instead. For more information, see AttributesToGet in the Amazon DynamoDB Developer Guide.
    
    Parameters:
    
    attributesToGet -
    This is a legacy parameter. Use ProjectionExpression instead. For more information, see AttributesToGet in the Amazon DynamoDB Developer Guide.
  - withAttributesToGet
```
public QueryRequest withAttributesToGet(java.lang.String... attributesToGet)
```
    This is a legacy parameter. Use ProjectionExpression instead. For more information, see AttributesToGet in the Amazon DynamoDB Developer Guide.
    
    Returns a reference to this object so that method calls can be chained together.
    
    Parameters:
    
    attributesToGet -
    This is a legacy parameter. Use ProjectionExpression instead. For more information, see AttributesToGet in the Amazon DynamoDB Developer Guide.
    
    Returns:
    
    A reference to this updated object so that method calls can be chained together.
  - withAttributesToGet
```
public QueryRequest withAttributesToGet(java.util.Collection<java.lang.String> attributesToGet)
```
    This is a legacy parameter. Use ProjectionExpression instead. For more information, see AttributesToGet in the Amazon DynamoDB Developer Guide.
    
    Returns a reference to this object so that method calls can be chained together.
    
    Parameters:
    
    attributesToGet -
    This is a legacy parameter. Use ProjectionExpression instead. For more information, see AttributesToGet in the Amazon DynamoDB Developer Guide.
    
    Returns:
    
    A reference to this updated object so that method calls can be chained together.
  - getLimit
```
public java.lang.Integer getLimit()
```
    The maximum number of items to evaluate (not necessarily the number of matching items). If DynamoDB processes the number of items up to the limit while processing the results, it stops the operation and returns the matching values up to that point, and a key in LastEvaluatedKey to apply in a subsequent operation, so that you can pick up where you left off. Also, if the processed data set size exceeds 1 MB before DynamoDB reaches this limit, it stops the operation and returns the matching values up to the limit, and a key in LastEvaluatedKey to apply in a subsequent operation to continue the operation. For more information, see Query and Scan in the Amazon DynamoDB Developer Guide.
    
    Constraints:
    Range: 1 -
    
    Returns:
    
    The maximum number of items to evaluate (not necessarily the number of matching items). If DynamoDB processes the number of items up to the limit while processing the results, it stops the operation and returns the matching values up to that point, and a key in LastEvaluatedKey to apply in a subsequent operation, so that you can pick up where you left off. Also, if the processed data set size exceeds 1 MB before DynamoDB reaches this limit, it stops the operation and returns the matching values up to the limit, and a key in LastEvaluatedKey to apply in a subsequent operation to continue the operation. For more information, see Query and Scan in the Amazon DynamoDB Developer Guide.
  - setLimit
```
public void setLimit(java.lang.Integer limit)
```
    The maximum number of items to evaluate (not necessarily the number of matching items). If DynamoDB processes the number of items up to the limit while processing the results, it stops the operation and returns the matching values up to that point, and a key in LastEvaluatedKey to apply in a subsequent operation, so that you can pick up where you left off. Also, if the processed data set size exceeds 1 MB before DynamoDB reaches this limit, it stops the operation and returns the matching values up to the limit, and a key in LastEvaluatedKey to apply in a subsequent operation to continue the operation. For more information, see Query and Scan in the Amazon DynamoDB Developer Guide.
    
    Constraints:
    Range: 1 -
    
    Parameters:
    
    limit -
    The maximum number of items to evaluate (not necessarily the number of matching items). If DynamoDB processes the number of items up to the limit while processing the results, it stops the operation and returns the matching values up to that point, and a key in LastEvaluatedKey to apply in a subsequent operation, so that you can pick up where you left off. Also, if the processed data set size exceeds 1 MB before DynamoDB reaches this limit, it stops the operation and returns the matching values up to the limit, and a key in LastEvaluatedKey to apply in a subsequent operation to continue the operation. For more information, see Query and Scan in the Amazon DynamoDB Developer Guide.
  - withLimit
```
public QueryRequest withLimit(java.lang.Integer limit)
```
    The maximum number of items to evaluate (not necessarily the number of matching items). If DynamoDB processes the number of items up to the limit while processing the results, it stops the operation and returns the matching values up to that point, and a key in LastEvaluatedKey to apply in a subsequent operation, so that you can pick up where you left off. Also, if the processed data set size exceeds 1 MB before DynamoDB reaches this limit, it stops the operation and returns the matching values up to the limit, and a key in LastEvaluatedKey to apply in a subsequent operation to continue the operation. For more information, see Query and Scan in the Amazon DynamoDB Developer Guide.
    
    Returns a reference to this object so that method calls can be chained together.
    Constraints:
    Range: 1 -
    
    Parameters:
    
    limit -
    The maximum number of items to evaluate (not necessarily the number of matching items). If DynamoDB processes the number of items up to the limit while processing the results, it stops the operation and returns the matching values up to that point, and a key in LastEvaluatedKey to apply in a subsequent operation, so that you can pick up where you left off. Also, if the processed data set size exceeds 1 MB before DynamoDB reaches this limit, it stops the operation and returns the matching values up to the limit, and a key in LastEvaluatedKey to apply in a subsequent operation to continue the operation. For more information, see Query and Scan in the Amazon DynamoDB Developer Guide.
    
    Returns:
    
    A reference to this updated object so that method calls can be chained together.
  - isConsistentRead
```
public java.lang.Boolean isConsistentRead()
```
    Determines the read consistency model: If set to true, then the operation uses strongly consistent reads; otherwise, the operation uses eventually consistent reads.
    
    Strongly consistent reads are not supported on global secondary indexes. If you query a global secondary index with ConsistentRead set to true, you will receive a ValidationException.
    
    Returns:
    
    Determines the read consistency model: If set to true, then the operation uses strongly consistent reads; otherwise, the operation uses eventually consistent reads.
    
    Strongly consistent reads are not supported on global secondary indexes. If you query a global secondary index with ConsistentRead set to true, you will receive a ValidationException.
  - getConsistentRead
```
public java.lang.Boolean getConsistentRead()
```
    Determines the read consistency model: If set to true, then the operation uses strongly consistent reads; otherwise, the operation uses eventually consistent reads.
    
    Strongly consistent reads are not supported on global secondary indexes. If you query a global secondary index with ConsistentRead set to true, you will receive a ValidationException.
    
    Returns:
    
    Determines the read consistency model: If set to true, then the operation uses strongly consistent reads; otherwise, the operation uses eventually consistent reads.
    
    Strongly consistent reads are not supported on global secondary indexes. If you query a global secondary index with ConsistentRead set to true, you will receive a ValidationException.
  - setConsistentRead
```
public void setConsistentRead(java.lang.Boolean consistentRead)
```
    Determines the read consistency model: If set to true, then the operation uses strongly consistent reads; otherwise, the operation uses eventually consistent reads.
    
    Strongly consistent reads are not supported on global secondary indexes. If you query a global secondary index with ConsistentRead set to true, you will receive a ValidationException.
    
    Parameters:
    
    consistentRead -
    Determines the read consistency model: If set to true, then the operation uses strongly consistent reads; otherwise, the operation uses eventually consistent reads.
    
    Strongly consistent reads are not supported on global secondary indexes. If you query a global secondary index with ConsistentRead set to true, you will receive a ValidationException.
  - withConsistentRead
```
public QueryRequest withConsistentRead(java.lang.Boolean consistentRead)
```
    Determines the read consistency model: If set to true, then the operation uses strongly consistent reads; otherwise, the operation uses eventually consistent reads.
    
    Strongly consistent reads are not supported on global secondary indexes. If you query a global secondary index with ConsistentRead set to true, you will receive a ValidationException.
    
    Returns a reference to this object so that method calls can be chained together.
    
    Parameters:
    
    consistentRead -
    Determines the read consistency model: If set to true, then the operation uses strongly consistent reads; otherwise, the operation uses eventually consistent reads.
    
    Strongly consistent reads are not supported on global secondary indexes. If you query a global secondary index with ConsistentRead set to true, you will receive a ValidationException.
    
    Returns:
    
    A reference to this updated object so that method calls can be chained together.
  - getKeyConditions
```
public java.util.Map<java.lang.String,Condition> getKeyConditions()
```
    This is a legacy parameter. Use KeyConditionExpression instead. For more information, see KeyConditions in the Amazon DynamoDB Developer Guide.
    
    Returns:
    
    This is a legacy parameter. Use KeyConditionExpression instead. For more information, see KeyConditions in the Amazon DynamoDB Developer Guide.
  - setKeyConditions
```
public void setKeyConditions(java.util.Map<java.lang.String,Condition> keyConditions)
```
    This is a legacy parameter. Use KeyConditionExpression instead. For more information, see KeyConditions in the Amazon DynamoDB Developer Guide.
    
    Parameters:
    
    keyConditions -
    This is a legacy parameter. Use KeyConditionExpression instead. For more information, see KeyConditions in the Amazon DynamoDB Developer Guide.
  - withKeyConditions
```
public QueryRequest withKeyConditions(java.util.Map<java.lang.String,Condition> keyConditions)
```
    This is a legacy parameter. Use KeyConditionExpression instead. For more information, see KeyConditions in the Amazon DynamoDB Developer Guide.
    
    Returns a reference to this object so that method calls can be chained together.
    
    Parameters:
    
    keyConditions -
    This is a legacy parameter. Use KeyConditionExpression instead. For more information, see KeyConditions in the Amazon DynamoDB Developer Guide.
    
    Returns:
    
    A reference to this updated object so that method calls can be chained together.
  - addKeyConditionsEntry
```
public QueryRequest addKeyConditionsEntry(java.lang.String key,
                                          Condition value)
```
    This is a legacy parameter. Use KeyConditionExpression instead. For more information, see KeyConditions in the Amazon DynamoDB Developer Guide.
    
    The method adds a new key-value pair into KeyConditions parameter, and returns a reference to this object so that method calls can be chained together.
    
    Parameters:
    
    key - The key of the entry to be added into KeyConditions.
    
    value - The corresponding value of the entry to be added into KeyConditions.
    
    Returns:
    
    A reference to this updated object so that method calls can be chained together.
  - clearKeyConditionsEntries
```
public QueryRequest clearKeyConditionsEntries()
```
    Removes all the entries added into KeyConditions.
    Returns a reference to this object so that method calls can be chained together.
  - getQueryFilter
```
public java.util.Map<java.lang.String,Condition> getQueryFilter()
```
    This is a legacy parameter. Use FilterExpression instead. For more information, see QueryFilter in the Amazon DynamoDB Developer Guide.
    
    Returns:
    
    This is a legacy parameter. Use FilterExpression instead. For more information, see QueryFilter in the Amazon DynamoDB Developer Guide.
  - setQueryFilter
```
public void setQueryFilter(java.util.Map<java.lang.String,Condition> queryFilter)
```
    This is a legacy parameter. Use FilterExpression instead. For more information, see QueryFilter in the Amazon DynamoDB Developer Guide.
    
    Parameters:
    
    queryFilter -
    This is a legacy parameter. Use FilterExpression instead. For more information, see QueryFilter in the Amazon DynamoDB Developer Guide.
  - withQueryFilter
```
public QueryRequest withQueryFilter(java.util.Map<java.lang.String,Condition> queryFilter)
```
    This is a legacy parameter. Use FilterExpression instead. For more information, see QueryFilter in the Amazon DynamoDB Developer Guide.
    
    Returns a reference to this object so that method calls can be chained together.
    
    Parameters:
    
    queryFilter -
    This is a legacy parameter. Use FilterExpression instead. For more information, see QueryFilter in the Amazon DynamoDB Developer Guide.
    
    Returns:
    
    A reference to this updated object so that method calls can be chained together.
  - addQueryFilterEntry
```
public QueryRequest addQueryFilterEntry(java.lang.String key,
                                        Condition value)
```
    This is a legacy parameter. Use FilterExpression instead. For more information, see QueryFilter in the Amazon DynamoDB Developer Guide.
    
    The method adds a new key-value pair into QueryFilter parameter, and returns a reference to this object so that method calls can be chained together.
    
    Parameters:
    
    key - The key of the entry to be added into QueryFilter.
    
    value - The corresponding value of the entry to be added into QueryFilter.
    
    Returns:
    
    A reference to this updated object so that method calls can be chained together.
  - clearQueryFilterEntries
```
public QueryRequest clearQueryFilterEntries()
```
    Removes all the entries added into QueryFilter.
    Returns a reference to this object so that method calls can be chained together.
  - getConditionalOperator
```
public java.lang.String getConditionalOperator()
```
    This is a legacy parameter. Use FilterExpression instead. For more information, see ConditionalOperator in the Amazon DynamoDB Developer Guide.
    
    Constraints:
    Allowed Values: AND, OR
    
    Returns:
    
    This is a legacy parameter. Use FilterExpression instead. For more information, see ConditionalOperator in the Amazon DynamoDB Developer Guide.
    
    See Also:
    
    ConditionalOperator
  - setConditionalOperator
```
public void setConditionalOperator(java.lang.String conditionalOperator)
```
    This is a legacy parameter. Use FilterExpression instead. For more information, see ConditionalOperator in the Amazon DynamoDB Developer Guide.
    
    Constraints:
    Allowed Values: AND, OR
    
    Parameters:
    
    conditionalOperator -
    This is a legacy parameter. Use FilterExpression instead. For more information, see ConditionalOperator in the Amazon DynamoDB Developer Guide.
    
    See Also:
    
    ConditionalOperator
  - withConditionalOperator
```
public QueryRequest withConditionalOperator(java.lang.String conditionalOperator)
```
    This is a legacy parameter. Use FilterExpression instead. For more information, see ConditionalOperator in the Amazon DynamoDB Developer Guide.
    
    Returns a reference to this object so that method calls can be chained together.
    Constraints:
    Allowed Values: AND, OR
    
    Parameters:
    
    conditionalOperator -
    This is a legacy parameter. Use FilterExpression instead. For more information, see ConditionalOperator in the Amazon DynamoDB Developer Guide.
    
    Returns:
    
    A reference to this updated object so that method calls can be chained together.
    
    See Also:
    
    ConditionalOperator
  - setConditionalOperator
```
public void setConditionalOperator(ConditionalOperator conditionalOperator)
```
    This is a legacy parameter. Use FilterExpression instead. For more information, see ConditionalOperator in the Amazon DynamoDB Developer Guide.
    
    Constraints:
    Allowed Values: AND, OR
    
    Parameters:
    
    conditionalOperator -
    This is a legacy parameter. Use FilterExpression instead. For more information, see ConditionalOperator in the Amazon DynamoDB Developer Guide.
    
    See Also:
    
    ConditionalOperator
  - withConditionalOperator
```
public QueryRequest withConditionalOperator(ConditionalOperator conditionalOperator)
```
    This is a legacy parameter. Use FilterExpression instead. For more information, see ConditionalOperator in the Amazon DynamoDB Developer Guide.
    
    Returns a reference to this object so that method calls can be chained together.
    Constraints:
    Allowed Values: AND, OR
    
    Parameters:
    
    conditionalOperator -
    This is a legacy parameter. Use FilterExpression instead. For more information, see ConditionalOperator in the Amazon DynamoDB Developer Guide.
    
    Returns:
    
    A reference to this updated object so that method calls can be chained together.
    
    See Also:
    
    ConditionalOperator
  - isScanIndexForward
```
public java.lang.Boolean isScanIndexForward()
```
    Specifies the order for index traversal: If true (default), the traversal is performed in ascending order; if false, the traversal is performed in descending order.
    
    Items with the same partition key value are stored in sorted order by sort key. If the sort key data type is Number, the results are stored in numeric order. For type String, the results are stored in order of UTF-8 bytes. For type Binary, DynamoDB treats each byte of the binary data as unsigned.
    
    If ScanIndexForward is true, DynamoDB returns the results in the order in which they are stored (by sort key value). This is the default behavior. If ScanIndexForward is false, DynamoDB reads the results in reverse order by sort key value, and then returns the results to the client.
    
    Returns:
    
    Specifies the order for index traversal: If true (default), the traversal is performed in ascending order; if false, the traversal is performed in descending order.
    
    Items with the same partition key value are stored in sorted order by sort key. If the sort key data type is Number, the results are stored in numeric order. For type String, the results are stored in order of UTF-8 bytes. For type Binary, DynamoDB treats each byte of the binary data as unsigned.
    
    If ScanIndexForward is true, DynamoDB returns the results in the order in which they are stored (by sort key value). This is the default behavior. If ScanIndexForward is false, DynamoDB reads the results in reverse order by sort key value, and then returns the results to the client.
  - getScanIndexForward
```
public java.lang.Boolean getScanIndexForward()
```
    Specifies the order for index traversal: If true (default), the traversal is performed in ascending order; if false, the traversal is performed in descending order.
    
    Items with the same partition key value are stored in sorted order by sort key. If the sort key data type is Number, the results are stored in numeric order. For type String, the results are stored in order of UTF-8 bytes. For type Binary, DynamoDB treats each byte of the binary data as unsigned.
    
    If ScanIndexForward is true, DynamoDB returns the results in the order in which they are stored (by sort key value). This is the default behavior. If ScanIndexForward is false, DynamoDB reads the results in reverse order by sort key value, and then returns the results to the client.
    
    Returns:
    
    Specifies the order for index traversal: If true (default), the traversal is performed in ascending order; if false, the traversal is performed in descending order.
    
    Items with the same partition key value are stored in sorted order by sort key. If the sort key data type is Number, the results are stored in numeric order. For type String, the results are stored in order of UTF-8 bytes. For type Binary, DynamoDB treats each byte of the binary data as unsigned.
    
    If ScanIndexForward is true, DynamoDB returns the results in the order in which they are stored (by sort key value). This is the default behavior. If ScanIndexForward is false, DynamoDB reads the results in reverse order by sort key value, and then returns the results to the client.
  - setScanIndexForward
```
public void setScanIndexForward(java.lang.Boolean scanIndexForward)
```
    Specifies the order for index traversal: If true (default), the traversal is performed in ascending order; if false, the traversal is performed in descending order.
    
    Items with the same partition key value are stored in sorted order by sort key. If the sort key data type is Number, the results are stored in numeric order. For type String, the results are stored in order of UTF-8 bytes. For type Binary, DynamoDB treats each byte of the binary data as unsigned.
    
    If ScanIndexForward is true, DynamoDB returns the results in the order in which they are stored (by sort key value). This is the default behavior. If ScanIndexForward is false, DynamoDB reads the results in reverse order by sort key value, and then returns the results to the client.
    
    Parameters:
    
    scanIndexForward -
    Specifies the order for index traversal: If true (default), the traversal is performed in ascending order; if false, the traversal is performed in descending order.
    
    Items with the same partition key value are stored in sorted order by sort key. If the sort key data type is Number, the results are stored in numeric order. For type String, the results are stored in order of UTF-8 bytes. For type Binary, DynamoDB treats each byte of the binary data as unsigned.
    
    If ScanIndexForward is true, DynamoDB returns the results in the order in which they are stored (by sort key value). This is the default behavior. If ScanIndexForward is false, DynamoDB reads the results in reverse order by sort key value, and then returns the results to the client.
  - withScanIndexForward
```
public QueryRequest withScanIndexForward(java.lang.Boolean scanIndexForward)
```
    Specifies the order for index traversal: If true (default), the traversal is performed in ascending order; if false, the traversal is performed in descending order.
    
    Items with the same partition key value are stored in sorted order by sort key. If the sort key data type is Number, the results are stored in numeric order. For type String, the results are stored in order of UTF-8 bytes. For type Binary, DynamoDB treats each byte of the binary data as unsigned.
    
    If ScanIndexForward is true, DynamoDB returns the results in the order in which they are stored (by sort key value). This is the default behavior. If ScanIndexForward is false, DynamoDB reads the results in reverse order by sort key value, and then returns the results to the client.
    
    Returns a reference to this object so that method calls can be chained together.
    
    Parameters:
    
    scanIndexForward -
    Specifies the order for index traversal: If true (default), the traversal is performed in ascending order; if false, the traversal is performed in descending order.
    
    Items with the same partition key value are stored in sorted order by sort key. If the sort key data type is Number, the results are stored in numeric order. For type String, the results are stored in order of UTF-8 bytes. For type Binary, DynamoDB treats each byte of the binary data as unsigned.
    
    If ScanIndexForward is true, DynamoDB returns the results in the order in which they are stored (by sort key value). This is the default behavior. If ScanIndexForward is false, DynamoDB reads the results in reverse order by sort key value, and then returns the results to the client.
    
    Returns:
    
    A reference to this updated object so that method calls can be chained together.
  - getExclusiveStartKey
```
public java.util.Map<java.lang.String,AttributeValue> getExclusiveStartKey()
```
    The primary key of the first item that this operation will evaluate. Use the value that was returned for LastEvaluatedKey in the previous operation.
    
    The data type for ExclusiveStartKey must be String, Number or Binary. No set data types are allowed.
    
    Returns:
    
    The primary key of the first item that this operation will evaluate. Use the value that was returned for LastEvaluatedKey in the previous operation.
    
    The data type for ExclusiveStartKey must be String, Number or Binary. No set data types are allowed.
  - setExclusiveStartKey
```
public void setExclusiveStartKey(java.util.Map<java.lang.String,AttributeValue> exclusiveStartKey)
```
    The primary key of the first item that this operation will evaluate. Use the value that was returned for LastEvaluatedKey in the previous operation.
    
    The data type for ExclusiveStartKey must be String, Number or Binary. No set data types are allowed.
    
    Parameters:
    
    exclusiveStartKey -
    The primary key of the first item that this operation will evaluate. Use the value that was returned for LastEvaluatedKey in the previous operation.
    
    The data type for ExclusiveStartKey must be String, Number or Binary. No set data types are allowed.
  - withExclusiveStartKey
```
public QueryRequest withExclusiveStartKey(java.util.Map<java.lang.String,AttributeValue> exclusiveStartKey)
```
    The primary key of the first item that this operation will evaluate. Use the value that was returned for LastEvaluatedKey in the previous operation.
    
    The data type for ExclusiveStartKey must be String, Number or Binary. No set data types are allowed.
    
    Returns a reference to this object so that method calls can be chained together.
    
    Parameters:
    
    exclusiveStartKey -
    The primary key of the first item that this operation will evaluate. Use the value that was returned for LastEvaluatedKey in the previous operation.
    
    The data type for ExclusiveStartKey must be String, Number or Binary. No set data types are allowed.
    
    Returns:
    
    A reference to this updated object so that method calls can be chained together.
  - addExclusiveStartKeyEntry
```
public QueryRequest addExclusiveStartKeyEntry(java.lang.String key,
                                              AttributeValue value)
```
    The primary key of the first item that this operation will evaluate. Use the value that was returned for LastEvaluatedKey in the previous operation.
    
    The data type for ExclusiveStartKey must be String, Number or Binary. No set data types are allowed.
    
    The method adds a new key-value pair into ExclusiveStartKey parameter, and returns a reference to this object so that method calls can be chained together.
    
    Parameters:
    
    key - The key of the entry to be added into ExclusiveStartKey.
    
    value - The corresponding value of the entry to be added into ExclusiveStartKey.
    
    Returns:
    
    A reference to this updated object so that method calls can be chained together.
  - clearExclusiveStartKeyEntries
```
public QueryRequest clearExclusiveStartKeyEntries()
```
    Removes all the entries added into ExclusiveStartKey.
    Returns a reference to this object so that method calls can be chained together.
  - getReturnConsumedCapacity
```
public java.lang.String getReturnConsumedCapacity()
```
    Determines the level of detail about provisioned throughput consumption that is returned in the response:
    - INDEXES - The response includes the aggregate ConsumedCapacity for the operation, together with ConsumedCapacity for each table and secondary index that was accessed.
      
      Note that some operations, such as GetItem and BatchGetItem, do not access any indexes at all. In these cases, specifying INDEXES will only return ConsumedCapacity information for table(s).
    - TOTAL - The response includes only the aggregate ConsumedCapacity for the operation.
    - NONE - No ConsumedCapacity details are included in the response.
    Constraints:
    Allowed Values: INDEXES, TOTAL, NONE
    Returns:
    Determines the level of detail about provisioned throughput consumption that is returned in the response:
    
    INDEXES - The response includes the aggregate ConsumedCapacity for the operation, together with ConsumedCapacity for each table and secondary index that was accessed.
    
    Note that some operations, such as GetItem and BatchGetItem, do not access any indexes at all. In these cases, specifying INDEXES will only return ConsumedCapacity information for table(s).
    
    TOTAL - The response includes only the aggregate ConsumedCapacity for the operation.
    
    NONE - No ConsumedCapacity details are included in the response.
    See Also:
    
    ReturnConsumedCapacity
  - setReturnConsumedCapacity
```
public void setReturnConsumedCapacity(java.lang.String returnConsumedCapacity)
```
    Determines the level of detail about provisioned throughput consumption that is returned in the response:
    - INDEXES - The response includes the aggregate ConsumedCapacity for the operation, together with ConsumedCapacity for each table and secondary index that was accessed.
      
      Note that some operations, such as GetItem and BatchGetItem, do not access any indexes at all. In these cases, specifying INDEXES will only return ConsumedCapacity information for table(s).
    - TOTAL - The response includes only the aggregate ConsumedCapacity for the operation.
    - NONE - No ConsumedCapacity details are included in the response.
    Constraints:
    Allowed Values: INDEXES, TOTAL, NONE
    Parameters:
    returnConsumedCapacity -
    Determines the level of detail about provisioned throughput consumption that is returned in the response:
    
    INDEXES - The response includes the aggregate ConsumedCapacity for the operation, together with ConsumedCapacity for each table and secondary index that was accessed.
    
    Note that some operations, such as GetItem and BatchGetItem, do not access any indexes at all. In these cases, specifying INDEXES will only return ConsumedCapacity information for table(s).
    
    TOTAL - The response includes only the aggregate ConsumedCapacity for the operation.
    
    NONE - No ConsumedCapacity details are included in the response.
    See Also:
    
    ReturnConsumedCapacity
  - withReturnConsumedCapacity
```
public QueryRequest withReturnConsumedCapacity(java.lang.String returnConsumedCapacity)
```
    Determines the level of detail about provisioned throughput consumption that is returned in the response:
    - INDEXES - The response includes the aggregate ConsumedCapacity for the operation, together with ConsumedCapacity for each table and secondary index that was accessed.
      
      Note that some operations, such as GetItem and BatchGetItem, do not access any indexes at all. In these cases, specifying INDEXES will only return ConsumedCapacity information for table(s).
    - TOTAL - The response includes only the aggregate ConsumedCapacity for the operation.
    - NONE - No ConsumedCapacity details are included in the response.
    Returns a reference to this object so that method calls can be chained together.
    Constraints:
    Allowed Values: INDEXES, TOTAL, NONE
    Parameters:
    returnConsumedCapacity -
    Determines the level of detail about provisioned throughput consumption that is returned in the response:
    
    INDEXES - The response includes the aggregate ConsumedCapacity for the operation, together with ConsumedCapacity for each table and secondary index that was accessed.
    
    Note that some operations, such as GetItem and BatchGetItem, do not access any indexes at all. In these cases, specifying INDEXES will only return ConsumedCapacity information for table(s).
    
    TOTAL - The response includes only the aggregate ConsumedCapacity for the operation.
    
    NONE - No ConsumedCapacity details are included in the response.
    Returns:
    
    A reference to this updated object so that method calls can be chained together.
    
    See Also:
    
    ReturnConsumedCapacity
  - setReturnConsumedCapacity
```
public void setReturnConsumedCapacity(ReturnConsumedCapacity returnConsumedCapacity)
```
    Determines the level of detail about provisioned throughput consumption that is returned in the response:
    - INDEXES - The response includes the aggregate ConsumedCapacity for the operation, together with ConsumedCapacity for each table and secondary index that was accessed.
      
      Note that some operations, such as GetItem and BatchGetItem, do not access any indexes at all. In these cases, specifying INDEXES will only return ConsumedCapacity information for table(s).
    - TOTAL - The response includes only the aggregate ConsumedCapacity for the operation.
    - NONE - No ConsumedCapacity details are included in the response.
    Constraints:
    Allowed Values: INDEXES, TOTAL, NONE
    Parameters:
    returnConsumedCapacity -
    Determines the level of detail about provisioned throughput consumption that is returned in the response:
    
    INDEXES - The response includes the aggregate ConsumedCapacity for the operation, together with ConsumedCapacity for each table and secondary index that was accessed.
    
    Note that some operations, such as GetItem and BatchGetItem, do not access any indexes at all. In these cases, specifying INDEXES will only return ConsumedCapacity information for table(s).
    
    TOTAL - The response includes only the aggregate ConsumedCapacity for the operation.
    
    NONE - No ConsumedCapacity details are included in the response.
    See Also:
    
    ReturnConsumedCapacity
  - withReturnConsumedCapacity
```
public QueryRequest withReturnConsumedCapacity(ReturnConsumedCapacity returnConsumedCapacity)
```
    Determines the level of detail about provisioned throughput consumption that is returned in the response:
    - INDEXES - The response includes the aggregate ConsumedCapacity for the operation, together with ConsumedCapacity for each table and secondary index that was accessed.
      
      Note that some operations, such as GetItem and BatchGetItem, do not access any indexes at all. In these cases, specifying INDEXES will only return ConsumedCapacity information for table(s).
    - TOTAL - The response includes only the aggregate ConsumedCapacity for the operation.
    - NONE - No ConsumedCapacity details are included in the response.
    Returns a reference to this object so that method calls can be chained together.
    Constraints:
    Allowed Values: INDEXES, TOTAL, NONE
    Parameters:
    returnConsumedCapacity -
    Determines the level of detail about provisioned throughput consumption that is returned in the response:
    
    INDEXES - The response includes the aggregate ConsumedCapacity for the operation, together with ConsumedCapacity for each table and secondary index that was accessed.
    
    Note that some operations, such as GetItem and BatchGetItem, do not access any indexes at all. In these cases, specifying INDEXES will only return ConsumedCapacity information for table(s).
    
    TOTAL - The response includes only the aggregate ConsumedCapacity for the operation.
    
    NONE - No ConsumedCapacity details are included in the response.
    Returns:
    
    A reference to this updated object so that method calls can be chained together.
    
    See Also:
    
    ReturnConsumedCapacity
  - getProjectionExpression
```
public java.lang.String getProjectionExpression()
```
    A string that identifies one or more attributes to retrieve from the table. These attributes can include scalars, sets, or elements of a JSON document. The attributes in the expression must be separated by commas.
    
    If no attribute names are specified, then all attributes will be returned. If any of the requested attributes are not found, they will not appear in the result.
    
    For more information, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
    
    Returns:
    
    A string that identifies one or more attributes to retrieve from the table. These attributes can include scalars, sets, or elements of a JSON document. The attributes in the expression must be separated by commas.
    
    If no attribute names are specified, then all attributes will be returned. If any of the requested attributes are not found, they will not appear in the result.
    
    For more information, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
  - setProjectionExpression
```
public void setProjectionExpression(java.lang.String projectionExpression)
```
    A string that identifies one or more attributes to retrieve from the table. These attributes can include scalars, sets, or elements of a JSON document. The attributes in the expression must be separated by commas.
    
    If no attribute names are specified, then all attributes will be returned. If any of the requested attributes are not found, they will not appear in the result.
    
    For more information, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
    
    Parameters:
    
    projectionExpression -
    A string that identifies one or more attributes to retrieve from the table. These attributes can include scalars, sets, or elements of a JSON document. The attributes in the expression must be separated by commas.
    
    If no attribute names are specified, then all attributes will be returned. If any of the requested attributes are not found, they will not appear in the result.
    
    For more information, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
  - withProjectionExpression
```
public QueryRequest withProjectionExpression(java.lang.String projectionExpression)
```
    A string that identifies one or more attributes to retrieve from the table. These attributes can include scalars, sets, or elements of a JSON document. The attributes in the expression must be separated by commas.
    
    If no attribute names are specified, then all attributes will be returned. If any of the requested attributes are not found, they will not appear in the result.
    
    For more information, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
    
    Returns a reference to this object so that method calls can be chained together.
    
    Parameters:
    
    projectionExpression -
    A string that identifies one or more attributes to retrieve from the table. These attributes can include scalars, sets, or elements of a JSON document. The attributes in the expression must be separated by commas.
    
    If no attribute names are specified, then all attributes will be returned. If any of the requested attributes are not found, they will not appear in the result.
    
    For more information, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
    
    Returns:
    
    A reference to this updated object so that method calls can be chained together.
  - getFilterExpression
```
public java.lang.String getFilterExpression()
```
    A string that contains conditions that DynamoDB applies after the Query operation, but before the data is returned to you. Items that do not satisfy the FilterExpression criteria are not returned.
    
    A FilterExpression does not allow key attributes. You cannot define a filter expression based on a partition key or a sort key.
    
    A FilterExpression is applied after the items have already been read; the process of filtering does not consume any additional read capacity units.
    
    For more information, see Filter Expressions in the Amazon DynamoDB Developer Guide.
    
    Returns:
    
    A string that contains conditions that DynamoDB applies after the Query operation, but before the data is returned to you. Items that do not satisfy the FilterExpression criteria are not returned.
    
    A FilterExpression does not allow key attributes. You cannot define a filter expression based on a partition key or a sort key.
    
    A FilterExpression is applied after the items have already been read; the process of filtering does not consume any additional read capacity units.
    
    For more information, see Filter Expressions in the Amazon DynamoDB Developer Guide.
  - setFilterExpression
```
public void setFilterExpression(java.lang.String filterExpression)
```
    A string that contains conditions that DynamoDB applies after the Query operation, but before the data is returned to you. Items that do not satisfy the FilterExpression criteria are not returned.
    
    A FilterExpression does not allow key attributes. You cannot define a filter expression based on a partition key or a sort key.
    
    A FilterExpression is applied after the items have already been read; the process of filtering does not consume any additional read capacity units.
    
    For more information, see Filter Expressions in the Amazon DynamoDB Developer Guide.
    
    Parameters:
    
    filterExpression -
    A string that contains conditions that DynamoDB applies after the Query operation, but before the data is returned to you. Items that do not satisfy the FilterExpression criteria are not returned.
    
    A FilterExpression does not allow key attributes. You cannot define a filter expression based on a partition key or a sort key.
    
    A FilterExpression is applied after the items have already been read; the process of filtering does not consume any additional read capacity units.
    
    For more information, see Filter Expressions in the Amazon DynamoDB Developer Guide.
  - withFilterExpression
```
public QueryRequest withFilterExpression(java.lang.String filterExpression)
```
    A string that contains conditions that DynamoDB applies after the Query operation, but before the data is returned to you. Items that do not satisfy the FilterExpression criteria are not returned.
    
    A FilterExpression does not allow key attributes. You cannot define a filter expression based on a partition key or a sort key.
    
    A FilterExpression is applied after the items have already been read; the process of filtering does not consume any additional read capacity units.
    
    For more information, see Filter Expressions in the Amazon DynamoDB Developer Guide.
    
    Returns a reference to this object so that method calls can be chained together.
    
    Parameters:
    
    filterExpression -
    A string that contains conditions that DynamoDB applies after the Query operation, but before the data is returned to you. Items that do not satisfy the FilterExpression criteria are not returned.
    
    A FilterExpression does not allow key attributes. You cannot define a filter expression based on a partition key or a sort key.
    
    A FilterExpression is applied after the items have already been read; the process of filtering does not consume any additional read capacity units.
    
    For more information, see Filter Expressions in the Amazon DynamoDB Developer Guide.
    
    Returns:
    
    A reference to this updated object so that method calls can be chained together.
  - getKeyConditionExpression
```
public java.lang.String getKeyConditionExpression()
```
    The condition that specifies the key value(s) for items to be retrieved by the Query action.
    
    The condition must perform an equality test on a single partition key value.
    
    The condition can optionally perform one of several comparison tests on a single sort key value. This allows Query to retrieve one item with a given partition key value and sort key value, or several items that have the same partition key value but different sort key values.
    
    The partition key equality test is required, and must be specified in the following format:
    
    partitionKeyName = :partitionkeyval
    
    If you also want to provide a condition for the sort key, it must be combined using AND with the condition for the sort key. Following is an example, using the = comparison operator for the sort key:
    
    partitionKeyName = :partitionkeyval AND sortKeyName = :sortkeyval
    
    Valid comparisons for the sort key condition are as follows:
    - sortKeyName = :sortkeyval - true if the sort key value is equal to :sortkeyval.
    - sortKeyName < :sortkeyval - true if the sort key value is less than :sortkeyval.
    - sortKeyName <= :sortkeyval - true if the sort key value is less than or equal to :sortkeyval.
    - sortKeyName > :sortkeyval - true if the sort key value is greater than :sortkeyval.
    - sortKeyName >= :sortkeyval - true if the sort key value is greater than or equal to :sortkeyval.
    - sortKeyName BETWEEN :sortkeyval1 AND :sortkeyval2 - true if the sort key value is greater than or equal to :sortkeyval1, and less than or equal to :sortkeyval2.
    - begins_with ( sortKeyName, :sortkeyval ) - true if the sort key value begins with a particular operand. (You cannot use this function with a sort key that is of type Number.) Note that the function name begins_with is case-sensitive.
    Use the ExpressionAttributeValues parameter to replace tokens such as :partitionval and :sortval with actual values at runtime.
    
    You can optionally use the ExpressionAttributeNames parameter to replace the names of the partition key and sort key with placeholder tokens. This option might be necessary if an attribute name conflicts with a DynamoDB reserved word. For example, the following KeyConditionExpression parameter causes an error because Size is a reserved word:
    - Size = :myval
    To work around this, define a placeholder (such a #S) to represent the attribute name Size. KeyConditionExpression then is as follows:
    - #S = :myval
    For a list of reserved words, see Reserved Words in the Amazon DynamoDB Developer Guide.
    
    For more information on ExpressionAttributeNames and ExpressionAttributeValues, see Using Placeholders for Attribute Names and Values in the Amazon DynamoDB Developer Guide.
    Returns:
    The condition that specifies the key value(s) for items to be retrieved by the Query action.
    
    The condition must perform an equality test on a single partition key value.
    
    The condition can optionally perform one of several comparison tests on a single sort key value. This allows Query to retrieve one item with a given partition key value and sort key value, or several items that have the same partition key value but different sort key values.
    
    The partition key equality test is required, and must be specified in the following format:
    
    partitionKeyName = :partitionkeyval
    
    If you also want to provide a condition for the sort key, it must be combined using AND with the condition for the sort key. Following is an example, using the = comparison operator for the sort key:
    
    partitionKeyName = :partitionkeyval AND sortKeyName = :sortkeyval
    
    Valid comparisons for the sort key condition are as follows:
    
    sortKeyName = :sortkeyval - true if the sort key value is equal to :sortkeyval .
    
    sortKeyName < :sortkeyval - true if the sort key value is less than :sortkeyval.
    
    sortKeyName <= :sortkeyval - true if the sort key value is less than or equal to :sortkeyval.
    
    sortKeyName > :sortkeyval - true if the sort key value is greater than :sortkeyval.
    
    sortKeyName >= :sortkeyval - true if the sort key value is greater than or equal to :sortkeyval.
    
    sortKeyName BETWEEN :sortkeyval1 AND :sortkeyval2 - true if the sort key value is greater than or equal to :sortkeyval1, and less than or equal to :sortkeyval2.
    
    begins_with ( sortKeyName, :sortkeyval ) - true if the sort key value begins with a particular operand. (You cannot use this function with a sort key that is of type Number.) Note that the function name begins_with is case-sensitive.
    
    Use the ExpressionAttributeValues parameter to replace tokens such as :partitionval and :sortval with actual values at runtime.
    
    You can optionally use the ExpressionAttributeNames parameter to replace the names of the partition key and sort key with placeholder tokens. This option might be necessary if an attribute name conflicts with a DynamoDB reserved word. For example, the following KeyConditionExpression parameter causes an error because Size is a reserved word:
    
    Size = :myval
    
    To work around this, define a placeholder (such a #S ) to represent the attribute name Size. KeyConditionExpression then is as follows:
    
    #S = :myval
    
    For a list of reserved words, see Reserved Words in the Amazon DynamoDB Developer Guide.
    
    For more information on ExpressionAttributeNames and ExpressionAttributeValues, see Using Placeholders for Attribute Names and Values in the Amazon DynamoDB Developer Guide.
  - setKeyConditionExpression
```
public void setKeyConditionExpression(java.lang.String keyConditionExpression)
```
    The condition that specifies the key value(s) for items to be retrieved by the Query action.
    
    The condition must perform an equality test on a single partition key value.
    
    The condition can optionally perform one of several comparison tests on a single sort key value. This allows Query to retrieve one item with a given partition key value and sort key value, or several items that have the same partition key value but different sort key values.
    
    The partition key equality test is required, and must be specified in the following format:
    
    partitionKeyName = :partitionkeyval
    
    If you also want to provide a condition for the sort key, it must be combined using AND with the condition for the sort key. Following is an example, using the = comparison operator for the sort key:
    
    partitionKeyName = :partitionkeyval AND sortKeyName = :sortkeyval
    
    Valid comparisons for the sort key condition are as follows:
    - sortKeyName = :sortkeyval - true if the sort key value is equal to :sortkeyval.
    - sortKeyName < :sortkeyval - true if the sort key value is less than :sortkeyval.
    - sortKeyName <= :sortkeyval - true if the sort key value is less than or equal to :sortkeyval.
    - sortKeyName > :sortkeyval - true if the sort key value is greater than :sortkeyval.
    - sortKeyName >= :sortkeyval - true if the sort key value is greater than or equal to :sortkeyval.
    - sortKeyName BETWEEN :sortkeyval1 AND :sortkeyval2 - true if the sort key value is greater than or equal to :sortkeyval1, and less than or equal to :sortkeyval2.
    - begins_with ( sortKeyName, :sortkeyval ) - true if the sort key value begins with a particular operand. (You cannot use this function with a sort key that is of type Number.) Note that the function name begins_with is case-sensitive.
    Use the ExpressionAttributeValues parameter to replace tokens such as :partitionval and :sortval with actual values at runtime.
    
    You can optionally use the ExpressionAttributeNames parameter to replace the names of the partition key and sort key with placeholder tokens. This option might be necessary if an attribute name conflicts with a DynamoDB reserved word. For example, the following KeyConditionExpression parameter causes an error because Size is a reserved word:
    - Size = :myval
    To work around this, define a placeholder (such a #S) to represent the attribute name Size. KeyConditionExpression then is as follows:
    - #S = :myval
    For a list of reserved words, see Reserved Words in the Amazon DynamoDB Developer Guide.
    
    For more information on ExpressionAttributeNames and ExpressionAttributeValues, see Using Placeholders for Attribute Names and Values in the Amazon DynamoDB Developer Guide.
    Parameters:
    keyConditionExpression -
    The condition that specifies the key value(s) for items to be retrieved by the Query action.
    
    The condition must perform an equality test on a single partition key value.
    
    The condition can optionally perform one of several comparison tests on a single sort key value. This allows Query to retrieve one item with a given partition key value and sort key value, or several items that have the same partition key value but different sort key values.
    
    The partition key equality test is required, and must be specified in the following format:
    
    partitionKeyName = :partitionkeyval
    
    If you also want to provide a condition for the sort key, it must be combined using AND with the condition for the sort key. Following is an example, using the = comparison operator for the sort key:
    
    partitionKeyName = :partitionkeyval AND sortKeyName = :sortkeyval
    
    Valid comparisons for the sort key condition are as follows:
    
    sortKeyName = :sortkeyval - true if the sort key value is equal to :sortkeyval.
    
    sortKeyName < :sortkeyval - true if the sort key value is less than :sortkeyval.
    
    sortKeyName <= :sortkeyval - true if the sort key value is less than or equal to :sortkeyval.
    
    sortKeyName > :sortkeyval - true if the sort key value is greater than :sortkeyval.
    
    sortKeyName >= :sortkeyval - true if the sort key value is greater than or equal to :sortkeyval.
    
    sortKeyName BETWEEN :sortkeyval1 AND :sortkeyval2 - true if the sort key value is greater than or equal to :sortkeyval1, and less than or equal to :sortkeyval2.
    
    begins_with ( sortKeyName, :sortkeyval ) - true if the sort key value begins with a particular operand. (You cannot use this function with a sort key that is of type Number.) Note that the function name begins_with is case-sensitive.
    
    Use the ExpressionAttributeValues parameter to replace tokens such as :partitionval and :sortval with actual values at runtime.
    
    You can optionally use the ExpressionAttributeNames parameter to replace the names of the partition key and sort key with placeholder tokens. This option might be necessary if an attribute name conflicts with a DynamoDB reserved word. For example, the following KeyConditionExpression parameter causes an error because Size is a reserved word:
    
    Size = :myval
    
    To work around this, define a placeholder (such a #S) to represent the attribute name Size. KeyConditionExpression then is as follows:
    
    #S = :myval
    
    For a list of reserved words, see Reserved Words in the Amazon DynamoDB Developer Guide.
    
    For more information on ExpressionAttributeNames and ExpressionAttributeValues, see Using Placeholders for Attribute Names and Values in the Amazon DynamoDB Developer Guide.
  - withKeyConditionExpression
```
public QueryRequest withKeyConditionExpression(java.lang.String keyConditionExpression)
```
    The condition that specifies the key value(s) for items to be retrieved by the Query action.
    
    The condition must perform an equality test on a single partition key value.
    
    The condition can optionally perform one of several comparison tests on a single sort key value. This allows Query to retrieve one item with a given partition key value and sort key value, or several items that have the same partition key value but different sort key values.
    
    The partition key equality test is required, and must be specified in the following format:
    
    partitionKeyName = :partitionkeyval
    
    If you also want to provide a condition for the sort key, it must be combined using AND with the condition for the sort key. Following is an example, using the = comparison operator for the sort key:
    
    partitionKeyName = :partitionkeyval AND sortKeyName = :sortkeyval
    
    Valid comparisons for the sort key condition are as follows:
    - sortKeyName = :sortkeyval - true if the sort key value is equal to :sortkeyval.
    - sortKeyName < :sortkeyval - true if the sort key value is less than :sortkeyval.
    - sortKeyName <= :sortkeyval - true if the sort key value is less than or equal to :sortkeyval.
    - sortKeyName > :sortkeyval - true if the sort key value is greater than :sortkeyval.
    - sortKeyName >= :sortkeyval - true if the sort key value is greater than or equal to :sortkeyval.
    - sortKeyName BETWEEN :sortkeyval1 AND :sortkeyval2 - true if the sort key value is greater than or equal to :sortkeyval1, and less than or equal to :sortkeyval2.
    - begins_with ( sortKeyName, :sortkeyval ) - true if the sort key value begins with a particular operand. (You cannot use this function with a sort key that is of type Number.) Note that the function name begins_with is case-sensitive.
    Use the ExpressionAttributeValues parameter to replace tokens such as :partitionval and :sortval with actual values at runtime.
    
    You can optionally use the ExpressionAttributeNames parameter to replace the names of the partition key and sort key with placeholder tokens. This option might be necessary if an attribute name conflicts with a DynamoDB reserved word. For example, the following KeyConditionExpression parameter causes an error because Size is a reserved word:
    - Size = :myval
    To work around this, define a placeholder (such a #S) to represent the attribute name Size. KeyConditionExpression then is as follows:
    - #S = :myval
    For a list of reserved words, see Reserved Words in the Amazon DynamoDB Developer Guide.
    
    For more information on ExpressionAttributeNames and ExpressionAttributeValues, see Using Placeholders for Attribute Names and Values in the Amazon DynamoDB Developer Guide.
    
    Returns a reference to this object so that method calls can be chained together.
    Parameters:
    keyConditionExpression -
    The condition that specifies the key value(s) for items to be retrieved by the Query action.
    
    The condition must perform an equality test on a single partition key value.
    
    The condition can optionally perform one of several comparison tests on a single sort key value. This allows Query to retrieve one item with a given partition key value and sort key value, or several items that have the same partition key value but different sort key values.
    
    The partition key equality test is required, and must be specified in the following format:
    
    partitionKeyName = :partitionkeyval
    
    If you also want to provide a condition for the sort key, it must be combined using AND with the condition for the sort key. Following is an example, using the = comparison operator for the sort key:
    
    partitionKeyName = :partitionkeyval AND sortKeyName = :sortkeyval
    
    Valid comparisons for the sort key condition are as follows:
    
    sortKeyName = :sortkeyval - true if the sort key value is equal to :sortkeyval.
    
    sortKeyName < :sortkeyval - true if the sort key value is less than :sortkeyval.
    
    sortKeyName <= :sortkeyval - true if the sort key value is less than or equal to :sortkeyval.
    
    sortKeyName > :sortkeyval - true if the sort key value is greater than :sortkeyval.
    
    sortKeyName >= :sortkeyval - true if the sort key value is greater than or equal to :sortkeyval.
    
    sortKeyName BETWEEN :sortkeyval1 AND :sortkeyval2 - true if the sort key value is greater than or equal to :sortkeyval1, and less than or equal to :sortkeyval2.
    
    begins_with ( sortKeyName, :sortkeyval ) - true if the sort key value begins with a particular operand. (You cannot use this function with a sort key that is of type Number.) Note that the function name begins_with is case-sensitive.
    
    Use the ExpressionAttributeValues parameter to replace tokens such as :partitionval and :sortval with actual values at runtime.
    
    You can optionally use the ExpressionAttributeNames parameter to replace the names of the partition key and sort key with placeholder tokens. This option might be necessary if an attribute name conflicts with a DynamoDB reserved word. For example, the following KeyConditionExpression parameter causes an error because Size is a reserved word:
    
    Size = :myval
    
    To work around this, define a placeholder (such a #S) to represent the attribute name Size. KeyConditionExpression then is as follows:
    
    #S = :myval
    
    For a list of reserved words, see Reserved Words in the Amazon DynamoDB Developer Guide.
    
    For more information on ExpressionAttributeNames and ExpressionAttributeValues, see Using Placeholders for Attribute Names and Values in the Amazon DynamoDB Developer Guide.
    Returns:
    
    A reference to this updated object so that method calls can be chained together.
  - getExpressionAttributeNames
```
public java.util.Map<java.lang.String,java.lang.String> getExpressionAttributeNames()
```
    One or more substitution tokens for attribute names in an expression. The following are some use cases for using ExpressionAttributeNames:
    - To access an attribute whose name conflicts with a DynamoDB reserved word.
    - To create a placeholder for repeating occurrences of an attribute name in an expression.
    - To prevent special characters in an attribute name from being misinterpreted in an expression.
    Use the # character in an expression to dereference an attribute name. For example, consider the following attribute name:
    - Percentile
    The name of this attribute conflicts with a reserved word, so it cannot be used directly in an expression. (For the complete list of reserved words, see Reserved Words in the Amazon DynamoDB Developer Guide). To work around this, you could specify the following for ExpressionAttributeNames:
    - {"#P":"Percentile"}
    You could then use this substitution in an expression, as in this example:
    - #P = :val
    Tokens that begin with the : character are expression attribute values, which are placeholders for the actual value at runtime.
    
    For more information on expression attribute names, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
    Returns:
    One or more substitution tokens for attribute names in an expression. The following are some use cases for using ExpressionAttributeNames:
    
    To access an attribute whose name conflicts with a DynamoDB reserved word.
    
    To create a placeholder for repeating occurrences of an attribute name in an expression.
    
    To prevent special characters in an attribute name from being misinterpreted in an expression.
    
    Use the # character in an expression to dereference an attribute name. For example, consider the following attribute name:
    
    Percentile
    
    The name of this attribute conflicts with a reserved word, so it cannot be used directly in an expression. (For the complete list of reserved words, see Reserved Words in the Amazon DynamoDB Developer Guide). To work around this, you could specify the following for ExpressionAttributeNames:
    
    {"#P":"Percentile"}
    
    You could then use this substitution in an expression, as in this example:
    
    #P = :val
    
    Tokens that begin with the : character are expression attribute values, which are placeholders for the actual value at runtime.
    
    For more information on expression attribute names, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
  - setExpressionAttributeNames
```
public void setExpressionAttributeNames(java.util.Map<java.lang.String,java.lang.String> expressionAttributeNames)
```
    One or more substitution tokens for attribute names in an expression. The following are some use cases for using ExpressionAttributeNames:
    - To access an attribute whose name conflicts with a DynamoDB reserved word.
    - To create a placeholder for repeating occurrences of an attribute name in an expression.
    - To prevent special characters in an attribute name from being misinterpreted in an expression.
    Use the # character in an expression to dereference an attribute name. For example, consider the following attribute name:
    - Percentile
    The name of this attribute conflicts with a reserved word, so it cannot be used directly in an expression. (For the complete list of reserved words, see Reserved Words in the Amazon DynamoDB Developer Guide). To work around this, you could specify the following for ExpressionAttributeNames:
    - {"#P":"Percentile"}
    You could then use this substitution in an expression, as in this example:
    - #P = :val
    Tokens that begin with the : character are expression attribute values, which are placeholders for the actual value at runtime.
    
    For more information on expression attribute names, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
    Parameters:
    expressionAttributeNames -
    One or more substitution tokens for attribute names in an expression. The following are some use cases for using ExpressionAttributeNames:
    
    To access an attribute whose name conflicts with a DynamoDB reserved word.
    
    To create a placeholder for repeating occurrences of an attribute name in an expression.
    
    To prevent special characters in an attribute name from being misinterpreted in an expression.
    
    Use the # character in an expression to dereference an attribute name. For example, consider the following attribute name:
    
    Percentile
    
    The name of this attribute conflicts with a reserved word, so it cannot be used directly in an expression. (For the complete list of reserved words, see Reserved Words in the Amazon DynamoDB Developer Guide). To work around this, you could specify the following for ExpressionAttributeNames:
    
    {"#P":"Percentile"}
    
    You could then use this substitution in an expression, as in this example:
    
    #P = :val
    
    Tokens that begin with the : character are expression attribute values, which are placeholders for the actual value at runtime.
    
    For more information on expression attribute names, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
  - withExpressionAttributeNames
```
public QueryRequest withExpressionAttributeNames(java.util.Map<java.lang.String,java.lang.String> expressionAttributeNames)
```
    One or more substitution tokens for attribute names in an expression. The following are some use cases for using ExpressionAttributeNames:
    - To access an attribute whose name conflicts with a DynamoDB reserved word.
    - To create a placeholder for repeating occurrences of an attribute name in an expression.
    - To prevent special characters in an attribute name from being misinterpreted in an expression.
    Use the # character in an expression to dereference an attribute name. For example, consider the following attribute name:
    - Percentile
    The name of this attribute conflicts with a reserved word, so it cannot be used directly in an expression. (For the complete list of reserved words, see Reserved Words in the Amazon DynamoDB Developer Guide). To work around this, you could specify the following for ExpressionAttributeNames:
    - {"#P":"Percentile"}
    You could then use this substitution in an expression, as in this example:
    - #P = :val
    Tokens that begin with the : character are expression attribute values, which are placeholders for the actual value at runtime.
    
    For more information on expression attribute names, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
    
    Returns a reference to this object so that method calls can be chained together.
    Parameters:
    expressionAttributeNames -
    One or more substitution tokens for attribute names in an expression. The following are some use cases for using ExpressionAttributeNames:
    
    To access an attribute whose name conflicts with a DynamoDB reserved word.
    
    To create a placeholder for repeating occurrences of an attribute name in an expression.
    
    To prevent special characters in an attribute name from being misinterpreted in an expression.
    
    Use the # character in an expression to dereference an attribute name. For example, consider the following attribute name:
    
    Percentile
    
    The name of this attribute conflicts with a reserved word, so it cannot be used directly in an expression. (For the complete list of reserved words, see Reserved Words in the Amazon DynamoDB Developer Guide). To work around this, you could specify the following for ExpressionAttributeNames:
    
    {"#P":"Percentile"}
    
    You could then use this substitution in an expression, as in this example:
    
    #P = :val
    
    Tokens that begin with the : character are expression attribute values, which are placeholders for the actual value at runtime.
    
    For more information on expression attribute names, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
    Returns:
    
    A reference to this updated object so that method calls can be chained together.
  - addExpressionAttributeNamesEntry
```
public QueryRequest addExpressionAttributeNamesEntry(java.lang.String key,
                                                     java.lang.String value)
```
    One or more substitution tokens for attribute names in an expression. The following are some use cases for using ExpressionAttributeNames:
    - To access an attribute whose name conflicts with a DynamoDB reserved word.
    - To create a placeholder for repeating occurrences of an attribute name in an expression.
    - To prevent special characters in an attribute name from being misinterpreted in an expression.
    Use the # character in an expression to dereference an attribute name. For example, consider the following attribute name:
    - Percentile
    The name of this attribute conflicts with a reserved word, so it cannot be used directly in an expression. (For the complete list of reserved words, see Reserved Words in the Amazon DynamoDB Developer Guide). To work around this, you could specify the following for ExpressionAttributeNames:
    - {"#P":"Percentile"}
    You could then use this substitution in an expression, as in this example:
    - #P = :val
    Tokens that begin with the : character are expression attribute values, which are placeholders for the actual value at runtime.
    
    For more information on expression attribute names, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
    
    The method adds a new key-value pair into ExpressionAttributeNames parameter, and returns a reference to this object so that method calls can be chained together.
    Parameters:
    
    key - The key of the entry to be added into ExpressionAttributeNames.
    
    value - The corresponding value of the entry to be added into ExpressionAttributeNames.
    
    Returns:
    
    A reference to this updated object so that method calls can be chained together.
  - clearExpressionAttributeNamesEntries
```
public QueryRequest clearExpressionAttributeNamesEntries()
```
    Removes all the entries added into ExpressionAttributeNames.
    Returns a reference to this object so that method calls can be chained together.
  - getExpressionAttributeValues
```
public java.util.Map<java.lang.String,AttributeValue> getExpressionAttributeValues()
```
    One or more values that can be substituted in an expression.
    
    Use the : (colon) character in an expression to dereference an attribute value. For example, suppose that you wanted to check whether the value of the ProductStatus attribute was one of the following:
    
    Available | Backordered | Discontinued
    
    You would first need to specify ExpressionAttributeValues as follows:
    
    { ":avail":{"S":"Available"}, ":back":{"S":"Backordered"}, ":disc":{"S":"Discontinued"} }
    
    You could then use these values in an expression, such as this:
    
    ProductStatus IN (:avail, :back, :disc)
    
    For more information on expression attribute values, see Specifying Conditions in the Amazon DynamoDB Developer Guide.
    
    Returns:
    
    One or more values that can be substituted in an expression.
    
    Use the : (colon) character in an expression to dereference an attribute value. For example, suppose that you wanted to check whether the value of the ProductStatus attribute was one of the following:
    
    Available | Backordered | Discontinued
    
    You would first need to specify ExpressionAttributeValues as follows:
    
    { ":avail":{"S":"Available"}, ":back":{"S":"Backordered"}, ":disc":{"S":"Discontinued"} }
    
    You could then use these values in an expression, such as this:
    
    ProductStatus IN (:avail, :back, :disc)
    
    For more information on expression attribute values, see Specifying Conditions in the Amazon DynamoDB Developer Guide.
  - setExpressionAttributeValues
```
public void setExpressionAttributeValues(java.util.Map<java.lang.String,AttributeValue> expressionAttributeValues)
```
    One or more values that can be substituted in an expression.
    
    Use the : (colon) character in an expression to dereference an attribute value. For example, suppose that you wanted to check whether the value of the ProductStatus attribute was one of the following:
    
    Available | Backordered | Discontinued
    
    You would first need to specify ExpressionAttributeValues as follows:
    
    { ":avail":{"S":"Available"}, ":back":{"S":"Backordered"}, ":disc":{"S":"Discontinued"} }
    
    You could then use these values in an expression, such as this:
    
    ProductStatus IN (:avail, :back, :disc)
    
    For more information on expression attribute values, see Specifying Conditions in the Amazon DynamoDB Developer Guide.
    
    Parameters:
    
    expressionAttributeValues -
    One or more values that can be substituted in an expression.
    
    Use the : (colon) character in an expression to dereference an attribute value. For example, suppose that you wanted to check whether the value of the ProductStatus attribute was one of the following:
    
    Available | Backordered | Discontinued
    
    You would first need to specify ExpressionAttributeValues as follows:
    
    { ":avail":{"S":"Available"}, ":back":{"S":"Backordered"}, ":disc":{"S":"Discontinued"} }
    
    You could then use these values in an expression, such as this:
    
    ProductStatus IN (:avail, :back, :disc)
    
    For more information on expression attribute values, see Specifying Conditions in the Amazon DynamoDB Developer Guide.
  - withExpressionAttributeValues
```
public QueryRequest withExpressionAttributeValues(java.util.Map<java.lang.String,AttributeValue> expressionAttributeValues)
```
    One or more values that can be substituted in an expression.
    
    Use the : (colon) character in an expression to dereference an attribute value. For example, suppose that you wanted to check whether the value of the ProductStatus attribute was one of the following:
    
    Available | Backordered | Discontinued
    
    You would first need to specify ExpressionAttributeValues as follows:
    
    { ":avail":{"S":"Available"}, ":back":{"S":"Backordered"}, ":disc":{"S":"Discontinued"} }
    
    You could then use these values in an expression, such as this:
    
    ProductStatus IN (:avail, :back, :disc)
    
    For more information on expression attribute values, see Specifying Conditions in the Amazon DynamoDB Developer Guide.
    
    Returns a reference to this object so that method calls can be chained together.
    
    Parameters:
    
    expressionAttributeValues -
    One or more values that can be substituted in an expression.
    
    Use the : (colon) character in an expression to dereference an attribute value. For example, suppose that you wanted to check whether the value of the ProductStatus attribute was one of the following:
    
    Available | Backordered | Discontinued
    
    You would first need to specify ExpressionAttributeValues as follows:
    
    { ":avail":{"S":"Available"}, ":back":{"S":"Backordered"}, ":disc":{"S":"Discontinued"} }
    
    You could then use these values in an expression, such as this:
    
    ProductStatus IN (:avail, :back, :disc)
    
    For more information on expression attribute values, see Specifying Conditions in the Amazon DynamoDB Developer Guide.
    
    Returns:
    
    A reference to this updated object so that method calls can be chained together.
  - addExpressionAttributeValuesEntry
```
public QueryRequest addExpressionAttributeValuesEntry(java.lang.String key,
                                                      AttributeValue value)
```
    One or more values that can be substituted in an expression.
    
    Use the : (colon) character in an expression to dereference an attribute value. For example, suppose that you wanted to check whether the value of the ProductStatus attribute was one of the following:
    
    Available | Backordered | Discontinued
    
    You would first need to specify ExpressionAttributeValues as follows:
    
    { ":avail":{"S":"Available"}, ":back":{"S":"Backordered"}, ":disc":{"S":"Discontinued"} }
    
    You could then use these values in an expression, such as this:
    
    ProductStatus IN (:avail, :back, :disc)
    
    For more information on expression attribute values, see Specifying Conditions in the Amazon DynamoDB Developer Guide.
    
    The method adds a new key-value pair into ExpressionAttributeValues parameter, and returns a reference to this object so that method calls can be chained together.
    
    Parameters:
    
    key - The key of the entry to be added into ExpressionAttributeValues.
    
    value - The corresponding value of the entry to be added into ExpressionAttributeValues.
    
    Returns:
    
    A reference to this updated object so that method calls can be chained together.
  - clearExpressionAttributeValuesEntries
```
public QueryRequest clearExpressionAttributeValuesEntries()
```
    Removes all the entries added into ExpressionAttributeValues.
    Returns a reference to this object so that method calls can be chained together.
  - toString
```
public java.lang.String toString()
```
    Returns a string representation of this object; useful for testing and debugging.
    
    Overrides:
    
    toString in class java.lang.Object
    
    Returns:
    
    A string representation of this object.
    
    See Also:
    
    Object.toString()
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class java.lang.Object
  - equals
```
public boolean equals(java.lang.Object obj)
```
    Overrides:
    
    equals in class java.lang.Object

Class QueryRequest

Constructor Summary

Method Summary

Methods inherited from class com.amazonaws.AmazonWebServiceRequest

Methods inherited from class java.lang.Object

Constructor Detail

QueryRequest

QueryRequest

Method Detail

getTableName

setTableName

withTableName

getIndexName

setIndexName

withIndexName

getSelect

setSelect

withSelect

setSelect

withSelect

getAttributesToGet

setAttributesToGet

withAttributesToGet

withAttributesToGet

getLimit

setLimit

withLimit

isConsistentRead

getConsistentRead

setConsistentRead

withConsistentRead

getKeyConditions

setKeyConditions

withKeyConditions

addKeyConditionsEntry

clearKeyConditionsEntries

getQueryFilter

setQueryFilter

withQueryFilter

addQueryFilterEntry

clearQueryFilterEntries

getConditionalOperator

setConditionalOperator

withConditionalOperator

setConditionalOperator

withConditionalOperator

isScanIndexForward

getScanIndexForward

setScanIndexForward

withScanIndexForward

getExclusiveStartKey

setExclusiveStartKey

withExclusiveStartKey

addExclusiveStartKeyEntry

clearExclusiveStartKeyEntries

getReturnConsumedCapacity

setReturnConsumedCapacity

withReturnConsumedCapacity

setReturnConsumedCapacity

withReturnConsumedCapacity

getProjectionExpression

setProjectionExpression

withProjectionExpression

getFilterExpression

setFilterExpression

withFilterExpression

getKeyConditionExpression

setKeyConditionExpression

withKeyConditionExpression

getExpressionAttributeNames

setExpressionAttributeNames

withExpressionAttributeNames

addExpressionAttributeNamesEntry

clearExpressionAttributeNamesEntries

getExpressionAttributeValues

setExpressionAttributeValues

withExpressionAttributeValues

addExpressionAttributeValuesEntry

clearExpressionAttributeValuesEntries

toString