com.amazonaws.services.sqs.model

Class CreateQueueRequest

java.lang.Object

com.amazonaws.AmazonWebServiceRequest

com.amazonaws.services.sqs.model.CreateQueueRequest

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable

public class CreateQueueRequest
extends AmazonWebServiceRequest
implements java.io.Serializable

Creates a new standard or FIFO queue or returns the URL of an existing queue. You can pass one or more attributes in the request.

• If you don't specify the FifoQueue attribute, Amazon SQS creates a standard queue.

  You can't change the queue type after you create it and you can't convert an existing standard queue into a FIFO queue. You must either create a new FIFO queue for your application or delete your existing standard queue and recreate it as a FIFO queue. For more information, see Moving From a Standard Queue to a FIFO Queue in the Amazon SQS Developer Guide.

• If you don't provide a value for an attribute, the queue is created with the default value for the attribute.

• If you delete a queue, you must wait at least 60 seconds before creating a queue with the same name.

To successfully create a new queue, you must provide a queue name that adheres to the limits related to queues and is unique within the scope of your queues.

To get the queue URL, use the GetQueueUrl action. GetQueueUrl requires only the QueueName parameter.

• If you provide the name of an existing queue along with the exact names and values of all the queue's attributes, CreateQueue returns the queue URL for the existing queue.

• If the queue name, attribute names, or attribute values don't match an existing queue, CreateQueue returns an error.

Some API actions take lists of parameters. Specify these lists using the param.n notation. Values of n are integers starting from 1. The following is an example of a parameter list with two elements:

&Attribute.1=this

&Attribute.2=that

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
CreateQueueRequest() Default constructor for CreateQueueRequest object.
CreateQueueRequest(java.lang.String queueName) Constructs a new CreateQueueRequest object.

Method Summary

Modifier and Type	Method and Description
CreateQueueRequest	addAttributesEntry(java.lang.String key, java.lang.String value) A map of attributes with their corresponding values.
CreateQueueRequest	clearAttributesEntries() Removes all the entries added into Attributes.
boolean	equals(java.lang.Object obj)
java.util.Map<java.lang.String,java.lang.String>	getAttributes() A map of attributes with their corresponding values.
java.lang.String	getQueueName() The name of the new queue.
int	hashCode()
void	setAttributes(java.util.Map<java.lang.String,java.lang.String> attributes) A map of attributes with their corresponding values.
void	setQueueName(java.lang.String queueName) The name of the new queue.
java.lang.String	toString() Returns a string representation of this object; useful for testing and debugging.
CreateQueueRequest	withAttributes(java.util.Map<java.lang.String,java.lang.String> attributes) A map of attributes with their corresponding values.
CreateQueueRequest	withQueueName(java.lang.String queueName) The name of the new queue.

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

CreateQueueRequest

public CreateQueueRequest()

Default constructor for CreateQueueRequest object. Callers should use the setter or fluent setter (with...) methods to initialize any additional object members.

CreateQueueRequest

public CreateQueueRequest(java.lang.String queueName)

Constructs a new CreateQueueRequest object. Callers should use the setter or fluent setter (with...) methods to initialize any additional object members.

Parameters:

queueName -

The name of the new queue. The following limits apply to this name:

• A queue name can have up to 80 characters.

• The following are accepted: alphanumeric chatacters, hyphens ( -), and underscores (_).

• A FIFO queue name must end with the .fifo suffix.

Queue names are case-sensitive.

Method Detail

getQueueName

public java.lang.String getQueueName()

The name of the new queue. The following limits apply to this name:

• A queue name can have up to 80 characters.

• The following are accepted: alphanumeric chatacters, hyphens ( -), and underscores (_).

• A FIFO queue name must end with the .fifo suffix.

Queue names are case-sensitive.

Returns:

The name of the new queue. The following limits apply to this name:

• A queue name can have up to 80 characters.

• The following are accepted: alphanumeric chatacters, hyphens ( -), and underscores (_).

• A FIFO queue name must end with the .fifo suffix.

Queue names are case-sensitive.

setQueueName

public void setQueueName(java.lang.String queueName)

The name of the new queue. The following limits apply to this name:

• A queue name can have up to 80 characters.

• The following are accepted: alphanumeric chatacters, hyphens ( -), and underscores (_).

• A FIFO queue name must end with the .fifo suffix.

Queue names are case-sensitive.

Parameters:

queueName -

The name of the new queue. The following limits apply to this name:

• A queue name can have up to 80 characters.

• The following are accepted: alphanumeric chatacters, hyphens ( -), and underscores (_).

• A FIFO queue name must end with the .fifo suffix.

Queue names are case-sensitive.

withQueueName

public CreateQueueRequest withQueueName(java.lang.String queueName)

The name of the new queue. The following limits apply to this name:

• A queue name can have up to 80 characters.

• The following are accepted: alphanumeric chatacters, hyphens ( -), and underscores (_).

• A FIFO queue name must end with the .fifo suffix.

Queue names are case-sensitive.

Returns a reference to this object so that method calls can be chained together.

Parameters:

queueName -

The name of the new queue. The following limits apply to this name:

• A queue name can have up to 80 characters.

• The following are accepted: alphanumeric chatacters, hyphens ( -), and underscores (_).

• A FIFO queue name must end with the .fifo suffix.

Queue names are case-sensitive.

Returns:

A reference to this updated object so that method calls can be chained together.

getAttributes

public java.util.Map<java.lang.String,java.lang.String> getAttributes()

A map of attributes with their corresponding values.

The following lists the names, descriptions, and values of the special request parameters that the CreateQueue action uses:

• DelaySeconds - The number of seconds for which the delivery of all messages in the queue is delayed. An integer from 0 to 900 (15 minutes). The default is 0 (zero).

• MaximumMessageSize - The limit of how many bytes a message can contain before Amazon SQS rejects it. An integer from 1,024 bytes (1 KiB) up to 262,144 bytes (256 KiB). The default is 262,144 (256 KiB).

• MessageRetentionPeriod - The number of seconds for which Amazon SQS retains a message. An integer representing seconds, from 60 (1 minute) to 120,9600 (14 days). The default is 345,600 (4 days).

• Policy - The queue's policy. A valid AWS policy. For more information about policy structure, see Overview of AWS IAM Policies in the Amazon IAM User Guide.

• ReceiveMessageWaitTimeSeconds - The number of seconds for which a ReceiveMessage action will wait for a message to arrive. An integer from 0 to 20 (seconds). The default is 0.

• RedrivePolicy - The parameters for the dead letter queue functionality of the source queue. For more information about the redrive policy and dead letter queues, see Using Amazon SQS Dead Letter Queues in the Amazon SQS Developer Guide.

  The dead letter queue of a FIFO queue must also be a FIFO queue. Similarly, the dead letter queue of a standard queue must also be a standard queue.

• VisibilityTimeout - The visibility timeout for the queue. An integer from 0 to 43200 (12 hours). The default is 30. For more information about the visibility timeout, see Visibility Timeout in the Amazon SQS Developer Guide.

The following attributes apply only to FIFO (first-in-first-out) queues:

• FifoQueue - Designates a queue as FIFO. You can provide this attribute only during queue creation; you can't change it for an existing queue. When you set this attribute, you must provide a MessageGroupId explicitly.

  For more information, see FIFO Queue Logic in the Amazon SQS Developer Guide.

• ContentBasedDeduplication - Enables content-based deduplication. For more information, see Exactly-Once Processing in the Amazon SQS Developer Guide.

  • Every message must have a unique MessageDeduplicationId,

    • You may provide a MessageDeduplicationId explicitly.

    • If you aren't able to provide a MessageDeduplicationId and you enable ContentBasedDeduplication for your queue, Amazon SQS uses a SHA-256 hash to generate the MessageDeduplicationId using the body of the message (but not the attributes of the message).

    • If you don't provide a MessageDeduplicationId and the queue doesn't have ContentBasedDeduplication set, the action fails with an error.

    • If the queue has ContentBasedDeduplication set, your MessageDeduplicationId overrides the generated one.

  • When ContentBasedDeduplication is in effect, messages with identical content sent within the deduplication interval are treated as duplicates and only one copy of the message is delivered.

  • You can also use ContentBasedDeduplication for messages with identical content to be treated as duplicates.

  • If you send one message with ContentBasedDeduplication enabled and then another message with a MessageDeduplicationId that is the same as the one generated for the first MessageDeduplicationId, the two messages are treated as duplicates and only one copy of the message is delivered.

Any other valid special request parameters that are specified (such as ApproximateNumberOfMessages, ApproximateNumberOfMessagesDelayed, ApproximateNumberOfMessagesNotVisible, CreatedTimestamp, LastModifiedTimestamp, and QueueArn) will be ignored.

Returns:

A map of attributes with their corresponding values.

The following lists the names, descriptions, and values of the special request parameters that the CreateQueue action uses:

• DelaySeconds - The number of seconds for which the delivery of all messages in the queue is delayed. An integer from 0 to 900 (15 minutes). The default is 0 (zero).

• MaximumMessageSize - The limit of how many bytes a message can contain before Amazon SQS rejects it. An integer from 1,024 bytes (1 KiB) up to 262,144 bytes (256 KiB). The default is 262,144 (256 KiB).

• MessageRetentionPeriod - The number of seconds for which Amazon SQS retains a message. An integer representing seconds, from 60 (1 minute) to 120,9600 (14 days). The default is 345,600 (4 days).

• Policy - The queue's policy. A valid AWS policy. For more information about policy structure, see Overview of AWS IAM Policies in the Amazon IAM User Guide.

• ReceiveMessageWaitTimeSeconds - The number of seconds for which a ReceiveMessage action will wait for a message to arrive. An integer from 0 to 20 (seconds). The default is 0.

• RedrivePolicy - The parameters for the dead letter queue functionality of the source queue. For more information about the redrive policy and dead letter queues, see Using Amazon SQS Dead Letter Queues in the Amazon SQS Developer Guide.

  The dead letter queue of a FIFO queue must also be a FIFO queue. Similarly, the dead letter queue of a standard queue must also be a standard queue.

• VisibilityTimeout - The visibility timeout for the queue. An integer from 0 to 43200 (12 hours). The default is 30. For more information about the visibility timeout, see Visibility Timeout in the Amazon SQS Developer Guide.

The following attributes apply only to FIFO (first-in-first-out) queues:

• FifoQueue - Designates a queue as FIFO. You can provide this attribute only during queue creation; you can't change it for an existing queue. When you set this attribute, you must provide a MessageGroupId explicitly.

  For more information, see FIFO Queue Logic in the Amazon SQS Developer Guide.

• ContentBasedDeduplication - Enables content-based deduplication. For more information, see Exactly-Once Processing in the Amazon SQS Developer Guide.

  • Every message must have a unique MessageDeduplicationId,

    • You may provide a MessageDeduplicationId explicitly.

    • If you aren't able to provide a MessageDeduplicationId and you enable ContentBasedDeduplication for your queue, Amazon SQS uses a SHA-256 hash to generate the MessageDeduplicationId using the body of the message (but not the attributes of the message).

    • If you don't provide a MessageDeduplicationId and the queue doesn't have ContentBasedDeduplication set, the action fails with an error.

    • If the queue has ContentBasedDeduplication set, your MessageDeduplicationId overrides the generated one.

  • When ContentBasedDeduplication is in effect, messages with identical content sent within the deduplication interval are treated as duplicates and only one copy of the message is delivered.

  • You can also use ContentBasedDeduplication for messages with identical content to be treated as duplicates.

  • If you send one message with ContentBasedDeduplication enabled and then another message with a MessageDeduplicationId that is the same as the one generated for the first MessageDeduplicationId, the two messages are treated as duplicates and only one copy of the message is delivered.

Any other valid special request parameters that are specified (such as ApproximateNumberOfMessages, ApproximateNumberOfMessagesDelayed, ApproximateNumberOfMessagesNotVisible, CreatedTimestamp, LastModifiedTimestamp , and QueueArn) will be ignored.

setAttributes

public void setAttributes(java.util.Map<java.lang.String,java.lang.String> attributes)

A map of attributes with their corresponding values.

The following lists the names, descriptions, and values of the special request parameters that the CreateQueue action uses:

• DelaySeconds - The number of seconds for which the delivery of all messages in the queue is delayed. An integer from 0 to 900 (15 minutes). The default is 0 (zero).

• MaximumMessageSize - The limit of how many bytes a message can contain before Amazon SQS rejects it. An integer from 1,024 bytes (1 KiB) up to 262,144 bytes (256 KiB). The default is 262,144 (256 KiB).

• MessageRetentionPeriod - The number of seconds for which Amazon SQS retains a message. An integer representing seconds, from 60 (1 minute) to 120,9600 (14 days). The default is 345,600 (4 days).

• Policy - The queue's policy. A valid AWS policy. For more information about policy structure, see Overview of AWS IAM Policies in the Amazon IAM User Guide.

• ReceiveMessageWaitTimeSeconds - The number of seconds for which a ReceiveMessage action will wait for a message to arrive. An integer from 0 to 20 (seconds). The default is 0.

• RedrivePolicy - The parameters for the dead letter queue functionality of the source queue. For more information about the redrive policy and dead letter queues, see Using Amazon SQS Dead Letter Queues in the Amazon SQS Developer Guide.

  The dead letter queue of a FIFO queue must also be a FIFO queue. Similarly, the dead letter queue of a standard queue must also be a standard queue.

• VisibilityTimeout - The visibility timeout for the queue. An integer from 0 to 43200 (12 hours). The default is 30. For more information about the visibility timeout, see Visibility Timeout in the Amazon SQS Developer Guide.

The following attributes apply only to FIFO (first-in-first-out) queues:

• FifoQueue - Designates a queue as FIFO. You can provide this attribute only during queue creation; you can't change it for an existing queue. When you set this attribute, you must provide a MessageGroupId explicitly.

  For more information, see FIFO Queue Logic in the Amazon SQS Developer Guide.

• ContentBasedDeduplication - Enables content-based deduplication. For more information, see Exactly-Once Processing in the Amazon SQS Developer Guide.

  • Every message must have a unique MessageDeduplicationId,

    • You may provide a MessageDeduplicationId explicitly.

    • If you aren't able to provide a MessageDeduplicationId and you enable ContentBasedDeduplication for your queue, Amazon SQS uses a SHA-256 hash to generate the MessageDeduplicationId using the body of the message (but not the attributes of the message).

    • If you don't provide a MessageDeduplicationId and the queue doesn't have ContentBasedDeduplication set, the action fails with an error.

    • If the queue has ContentBasedDeduplication set, your MessageDeduplicationId overrides the generated one.

  • When ContentBasedDeduplication is in effect, messages with identical content sent within the deduplication interval are treated as duplicates and only one copy of the message is delivered.

  • You can also use ContentBasedDeduplication for messages with identical content to be treated as duplicates.

  • If you send one message with ContentBasedDeduplication enabled and then another message with a MessageDeduplicationId that is the same as the one generated for the first MessageDeduplicationId, the two messages are treated as duplicates and only one copy of the message is delivered.

Any other valid special request parameters that are specified (such as ApproximateNumberOfMessages, ApproximateNumberOfMessagesDelayed, ApproximateNumberOfMessagesNotVisible, CreatedTimestamp, LastModifiedTimestamp, and QueueArn) will be ignored.

Parameters:

attributes -

A map of attributes with their corresponding values.

The following lists the names, descriptions, and values of the special request parameters that the CreateQueue action uses:

• DelaySeconds - The number of seconds for which the delivery of all messages in the queue is delayed. An integer from 0 to 900 (15 minutes). The default is 0 (zero).

• MaximumMessageSize - The limit of how many bytes a message can contain before Amazon SQS rejects it. An integer from 1,024 bytes (1 KiB) up to 262,144 bytes (256 KiB). The default is 262,144 (256 KiB).

• MessageRetentionPeriod - The number of seconds for which Amazon SQS retains a message. An integer representing seconds, from 60 (1 minute) to 120,9600 (14 days). The default is 345,600 (4 days).

• Policy - The queue's policy. A valid AWS policy. For more information about policy structure, see Overview of AWS IAM Policies in the Amazon IAM User Guide.

• ReceiveMessageWaitTimeSeconds - The number of seconds for which a ReceiveMessage action will wait for a message to arrive. An integer from 0 to 20 (seconds). The default is 0.

• RedrivePolicy - The parameters for the dead letter queue functionality of the source queue. For more information about the redrive policy and dead letter queues, see Using Amazon SQS Dead Letter Queues in the Amazon SQS Developer Guide.

  The dead letter queue of a FIFO queue must also be a FIFO queue. Similarly, the dead letter queue of a standard queue must also be a standard queue.

• VisibilityTimeout - The visibility timeout for the queue. An integer from 0 to 43200 (12 hours). The default is 30. For more information about the visibility timeout, see Visibility Timeout in the Amazon SQS Developer Guide.

The following attributes apply only to FIFO (first-in-first-out) queues:

• FifoQueue - Designates a queue as FIFO. You can provide this attribute only during queue creation; you can't change it for an existing queue. When you set this attribute, you must provide a MessageGroupId explicitly.

  For more information, see FIFO Queue Logic in the Amazon SQS Developer Guide.

• ContentBasedDeduplication - Enables content-based deduplication. For more information, see Exactly-Once Processing in the Amazon SQS Developer Guide.

  • Every message must have a unique MessageDeduplicationId,

    • You may provide a MessageDeduplicationId explicitly.

    • If you aren't able to provide a MessageDeduplicationId and you enable ContentBasedDeduplication for your queue, Amazon SQS uses a SHA-256 hash to generate the MessageDeduplicationId using the body of the message (but not the attributes of the message).

    • If you don't provide a MessageDeduplicationId and the queue doesn't have ContentBasedDeduplication set, the action fails with an error.

    • If the queue has ContentBasedDeduplication set, your MessageDeduplicationId overrides the generated one.

  • When ContentBasedDeduplication is in effect, messages with identical content sent within the deduplication interval are treated as duplicates and only one copy of the message is delivered.

  • You can also use ContentBasedDeduplication for messages with identical content to be treated as duplicates.

  • If you send one message with ContentBasedDeduplication enabled and then another message with a MessageDeduplicationId that is the same as the one generated for the first MessageDeduplicationId, the two messages are treated as duplicates and only one copy of the message is delivered.

Any other valid special request parameters that are specified (such as ApproximateNumberOfMessages, ApproximateNumberOfMessagesDelayed, ApproximateNumberOfMessagesNotVisible, CreatedTimestamp, LastModifiedTimestamp, and QueueArn) will be ignored.

withAttributes

public CreateQueueRequest withAttributes(java.util.Map<java.lang.String,java.lang.String> attributes)

A map of attributes with their corresponding values.

The following lists the names, descriptions, and values of the special request parameters that the CreateQueue action uses:

• DelaySeconds - The number of seconds for which the delivery of all messages in the queue is delayed. An integer from 0 to 900 (15 minutes). The default is 0 (zero).

• MaximumMessageSize - The limit of how many bytes a message can contain before Amazon SQS rejects it. An integer from 1,024 bytes (1 KiB) up to 262,144 bytes (256 KiB). The default is 262,144 (256 KiB).

• MessageRetentionPeriod - The number of seconds for which Amazon SQS retains a message. An integer representing seconds, from 60 (1 minute) to 120,9600 (14 days). The default is 345,600 (4 days).

• Policy - The queue's policy. A valid AWS policy. For more information about policy structure, see Overview of AWS IAM Policies in the Amazon IAM User Guide.

• ReceiveMessageWaitTimeSeconds - The number of seconds for which a ReceiveMessage action will wait for a message to arrive. An integer from 0 to 20 (seconds). The default is 0.

• RedrivePolicy - The parameters for the dead letter queue functionality of the source queue. For more information about the redrive policy and dead letter queues, see Using Amazon SQS Dead Letter Queues in the Amazon SQS Developer Guide.

  The dead letter queue of a FIFO queue must also be a FIFO queue. Similarly, the dead letter queue of a standard queue must also be a standard queue.

• VisibilityTimeout - The visibility timeout for the queue. An integer from 0 to 43200 (12 hours). The default is 30. For more information about the visibility timeout, see Visibility Timeout in the Amazon SQS Developer Guide.

The following attributes apply only to FIFO (first-in-first-out) queues:

• FifoQueue - Designates a queue as FIFO. You can provide this attribute only during queue creation; you can't change it for an existing queue. When you set this attribute, you must provide a MessageGroupId explicitly.

  For more information, see FIFO Queue Logic in the Amazon SQS Developer Guide.

• ContentBasedDeduplication - Enables content-based deduplication. For more information, see Exactly-Once Processing in the Amazon SQS Developer Guide.

  • Every message must have a unique MessageDeduplicationId,

    • You may provide a MessageDeduplicationId explicitly.

    • If you aren't able to provide a MessageDeduplicationId and you enable ContentBasedDeduplication for your queue, Amazon SQS uses a SHA-256 hash to generate the MessageDeduplicationId using the body of the message (but not the attributes of the message).

    • If you don't provide a MessageDeduplicationId and the queue doesn't have ContentBasedDeduplication set, the action fails with an error.

    • If the queue has ContentBasedDeduplication set, your MessageDeduplicationId overrides the generated one.

  • When ContentBasedDeduplication is in effect, messages with identical content sent within the deduplication interval are treated as duplicates and only one copy of the message is delivered.

  • You can also use ContentBasedDeduplication for messages with identical content to be treated as duplicates.

  • If you send one message with ContentBasedDeduplication enabled and then another message with a MessageDeduplicationId that is the same as the one generated for the first MessageDeduplicationId, the two messages are treated as duplicates and only one copy of the message is delivered.

Any other valid special request parameters that are specified (such as ApproximateNumberOfMessages, ApproximateNumberOfMessagesDelayed, ApproximateNumberOfMessagesNotVisible, CreatedTimestamp, LastModifiedTimestamp, and QueueArn) will be ignored.

Returns a reference to this object so that method calls can be chained together.

Parameters:

attributes -

A map of attributes with their corresponding values.

The following lists the names, descriptions, and values of the special request parameters that the CreateQueue action uses:

• DelaySeconds - The number of seconds for which the delivery of all messages in the queue is delayed. An integer from 0 to 900 (15 minutes). The default is 0 (zero).

• MaximumMessageSize - The limit of how many bytes a message can contain before Amazon SQS rejects it. An integer from 1,024 bytes (1 KiB) up to 262,144 bytes (256 KiB). The default is 262,144 (256 KiB).

• MessageRetentionPeriod - The number of seconds for which Amazon SQS retains a message. An integer representing seconds, from 60 (1 minute) to 120,9600 (14 days). The default is 345,600 (4 days).

• Policy - The queue's policy. A valid AWS policy. For more information about policy structure, see Overview of AWS IAM Policies in the Amazon IAM User Guide.

• ReceiveMessageWaitTimeSeconds - The number of seconds for which a ReceiveMessage action will wait for a message to arrive. An integer from 0 to 20 (seconds). The default is 0.

• RedrivePolicy - The parameters for the dead letter queue functionality of the source queue. For more information about the redrive policy and dead letter queues, see Using Amazon SQS Dead Letter Queues in the Amazon SQS Developer Guide.

  The dead letter queue of a FIFO queue must also be a FIFO queue. Similarly, the dead letter queue of a standard queue must also be a standard queue.

• VisibilityTimeout - The visibility timeout for the queue. An integer from 0 to 43200 (12 hours). The default is 30. For more information about the visibility timeout, see Visibility Timeout in the Amazon SQS Developer Guide.

The following attributes apply only to FIFO (first-in-first-out) queues:

• FifoQueue - Designates a queue as FIFO. You can provide this attribute only during queue creation; you can't change it for an existing queue. When you set this attribute, you must provide a MessageGroupId explicitly.

  For more information, see FIFO Queue Logic in the Amazon SQS Developer Guide.

• ContentBasedDeduplication - Enables content-based deduplication. For more information, see Exactly-Once Processing in the Amazon SQS Developer Guide.

  • Every message must have a unique MessageDeduplicationId,

    • You may provide a MessageDeduplicationId explicitly.

    • If you aren't able to provide a MessageDeduplicationId and you enable ContentBasedDeduplication for your queue, Amazon SQS uses a SHA-256 hash to generate the MessageDeduplicationId using the body of the message (but not the attributes of the message).

    • If you don't provide a MessageDeduplicationId and the queue doesn't have ContentBasedDeduplication set, the action fails with an error.

    • If the queue has ContentBasedDeduplication set, your MessageDeduplicationId overrides the generated one.

  • When ContentBasedDeduplication is in effect, messages with identical content sent within the deduplication interval are treated as duplicates and only one copy of the message is delivered.

  • You can also use ContentBasedDeduplication for messages with identical content to be treated as duplicates.

  • If you send one message with ContentBasedDeduplication enabled and then another message with a MessageDeduplicationId that is the same as the one generated for the first MessageDeduplicationId, the two messages are treated as duplicates and only one copy of the message is delivered.

Any other valid special request parameters that are specified (such as ApproximateNumberOfMessages, ApproximateNumberOfMessagesDelayed, ApproximateNumberOfMessagesNotVisible, CreatedTimestamp, LastModifiedTimestamp, and QueueArn) will be ignored.

Returns:

A reference to this updated object so that method calls can be chained together.

addAttributesEntry

public CreateQueueRequest addAttributesEntry(java.lang.String key,
                                             java.lang.String value)

A map of attributes with their corresponding values.

The following lists the names, descriptions, and values of the special request parameters that the CreateQueue action uses:

• DelaySeconds - The number of seconds for which the delivery of all messages in the queue is delayed. An integer from 0 to 900 (15 minutes). The default is 0 (zero).

• MaximumMessageSize - The limit of how many bytes a message can contain before Amazon SQS rejects it. An integer from 1,024 bytes (1 KiB) up to 262,144 bytes (256 KiB). The default is 262,144 (256 KiB).

• MessageRetentionPeriod - The number of seconds for which Amazon SQS retains a message. An integer representing seconds, from 60 (1 minute) to 120,9600 (14 days). The default is 345,600 (4 days).

• Policy - The queue's policy. A valid AWS policy. For more information about policy structure, see Overview of AWS IAM Policies in the Amazon IAM User Guide.

• ReceiveMessageWaitTimeSeconds - The number of seconds for which a ReceiveMessage action will wait for a message to arrive. An integer from 0 to 20 (seconds). The default is 0.

• RedrivePolicy - The parameters for the dead letter queue functionality of the source queue. For more information about the redrive policy and dead letter queues, see Using Amazon SQS Dead Letter Queues in the Amazon SQS Developer Guide.

  The dead letter queue of a FIFO queue must also be a FIFO queue. Similarly, the dead letter queue of a standard queue must also be a standard queue.

• VisibilityTimeout - The visibility timeout for the queue. An integer from 0 to 43200 (12 hours). The default is 30. For more information about the visibility timeout, see Visibility Timeout in the Amazon SQS Developer Guide.

The following attributes apply only to FIFO (first-in-first-out) queues:

• FifoQueue - Designates a queue as FIFO. You can provide this attribute only during queue creation; you can't change it for an existing queue. When you set this attribute, you must provide a MessageGroupId explicitly.

  For more information, see FIFO Queue Logic in the Amazon SQS Developer Guide.

• ContentBasedDeduplication - Enables content-based deduplication. For more information, see Exactly-Once Processing in the Amazon SQS Developer Guide.

  • Every message must have a unique MessageDeduplicationId,

    • You may provide a MessageDeduplicationId explicitly.

    • If you aren't able to provide a MessageDeduplicationId and you enable ContentBasedDeduplication for your queue, Amazon SQS uses a SHA-256 hash to generate the MessageDeduplicationId using the body of the message (but not the attributes of the message).

    • If you don't provide a MessageDeduplicationId and the queue doesn't have ContentBasedDeduplication set, the action fails with an error.

    • If the queue has ContentBasedDeduplication set, your MessageDeduplicationId overrides the generated one.

  • When ContentBasedDeduplication is in effect, messages with identical content sent within the deduplication interval are treated as duplicates and only one copy of the message is delivered.

  • You can also use ContentBasedDeduplication for messages with identical content to be treated as duplicates.

  • If you send one message with ContentBasedDeduplication enabled and then another message with a MessageDeduplicationId that is the same as the one generated for the first MessageDeduplicationId, the two messages are treated as duplicates and only one copy of the message is delivered.

Any other valid special request parameters that are specified (such as ApproximateNumberOfMessages, ApproximateNumberOfMessagesDelayed, ApproximateNumberOfMessagesNotVisible, CreatedTimestamp, LastModifiedTimestamp, and QueueArn) will be ignored.

The method adds a new key-value pair into Attributes 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 Attributes.

value - The corresponding value of the entry to be added into Attributes.

Returns:

A reference to this updated object so that method calls can be chained together.

clearAttributesEntries

public CreateQueueRequest clearAttributesEntries()

Removes all the entries added into Attributes.

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