AWSDynamoDBBatchWriteItemInput

Objective-C

@interface AWSDynamoDBBatchWriteItemInput

Swift

class AWSDynamoDBBatchWriteItemInput

Represents the input of a BatchWriteItem operation.

Required parameters: [RequestItems]

  • A map of one or more table names or table ARNs and, for each table, a list of operations to be performed (DeleteRequest or PutRequest). Each element in the map consists of the following:

    • DeleteRequest - Perform a DeleteItem operation on the specified item. The item to be deleted is identified by a Key subelement:

      • Key - A map of primary key attribute values that uniquely identify the item. Each entry in this map consists of an attribute name and an attribute value. For each primary key, you must provide all of the key attributes. For example, with a simple primary key, you only need to provide a value for the partition key. For a composite primary key, you must provide values for both the partition key and the sort key.

    • PutRequest - Perform a PutItem operation on the specified item. The item to be put is identified by an Item subelement:

      • Item - A map of attributes and their values. Each entry in this map consists of an attribute name and an attribute value. Attribute values must not be null; string and binary type attributes must have lengths greater than zero; and set type attributes must not be empty. Requests that contain empty values are rejected with a ValidationException exception.

        If you specify any attributes that are part of an index key, then the data types for those attributes must match those of the schema in the table’s attribute definition.

    Declaration

    Objective-C

    @property (nonatomic, strong) NSDictionary<NSString *, NSArray<AWSDynamoDBWriteRequest *> *> *_Nullable requestItems;

    Swift

    var requestItems: [String : [AWSDynamoDBWriteRequest]]? { get set }

  • Determines the level of detail about either provisioned or on-demand 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.

    Declaration

    Objective-C

    @property (nonatomic) AWSDynamoDBReturnConsumedCapacity returnConsumedCapacity;

    Swift

    var returnConsumedCapacity: AWSDynamoDBReturnConsumedCapacity { get set }

  • Determines whether item collection metrics are returned. If set to SIZE, the response includes statistics about item collections, if any, that were modified during the operation are returned in the response. If set to NONE (the default), no statistics are returned.

    Declaration

    Objective-C

    @property (nonatomic) AWSDynamoDBReturnItemCollectionMetrics returnItemCollectionMetrics;

    Swift

    var returnItemCollectionMetrics: AWSDynamoDBReturnItemCollectionMetrics { get set }