com.amazonaws.services.sqs.model.ChangeMessageVisibilityRequest Maven / Gradle / Ivy
/*
* Copyright 2010-2014 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file is distributed
* on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
package com.amazonaws.services.sqs.model;
import java.io.Serializable;
import com.amazonaws.AmazonWebServiceRequest;
/**
* Container for the parameters to the {@link com.amazonaws.services.sqs.AmazonSQS#changeMessageVisibility(ChangeMessageVisibilityRequest) ChangeMessageVisibility operation}.
*
* Changes the visibility timeout of a specified message in a queue to a
* new value. The maximum allowed timeout value you can set the value to
* is 12 hours. This means you can't extend the timeout of a message in
* an existing queue to more than a total visibility timeout of 12 hours.
* (For more information visibility timeout, see
* Visibility Timeout
* in the Amazon SQS Developer Guide .)
*
*
* For example, let's say you have a message and its default message
* visibility timeout is 30 minutes. You could call
* ChangeMessageVisiblity with a value of two hours and the
* effective timeout would be two hours and 30 minutes. When that time
* comes near you could again extend the time out by calling
* ChangeMessageVisiblity, but this time the maximum allowed timeout
* would be 9 hours and 30 minutes.
*
*
* NOTE: There is a 120,000 limit for the number of inflight
* messages per queue. Messages are inflight after they have been
* received from the queue by a consuming component, but have not yet
* been deleted from the queue. If you reach the 120,000 limit, you will
* receive an OverLimit error message from Amazon SQS. To help avoid
* reaching the limit, you should delete the messages from the queue
* after they have been processed. You can also increase the number of
* queues you use to process the messages.
*
*
* IMPORTANT:If you attempt to set the VisibilityTimeout to an
* amount more than the maximum time left, Amazon SQS returns an error.
* It will not automatically recalculate and increase the timeout to the
* maximum time remaining.
*
*
* IMPORTANT:Unlike with a queue, when you change the visibility
* timeout for a specific message, that timeout value is applied
* immediately but is not saved in memory for that message. If you don't
* delete a message after it is received, the visibility timeout for the
* message the next time it is received reverts to the original timeout
* value, not the value you set with the ChangeMessageVisibility action.
*
*
* @see com.amazonaws.services.sqs.AmazonSQS#changeMessageVisibility(ChangeMessageVisibilityRequest)
*/
public class ChangeMessageVisibilityRequest extends AmazonWebServiceRequest implements Serializable {
/**
* The URL of the Amazon SQS queue to take action on.
*/
private String queueUrl;
/**
* The receipt handle associated with the message whose visibility
* timeout should be changed. This parameter is returned by the
* ReceiveMessage action.
*/
private String receiptHandle;
/**
* The new value (in seconds - from 0 to 43200 - maximum 12 hours) for
* the message's visibility timeout.
*/
private Integer visibilityTimeout;
/**
* Default constructor for a new ChangeMessageVisibilityRequest object. Callers should use the
* setter or fluent setter (with...) methods to initialize this object after creating it.
*/
public ChangeMessageVisibilityRequest() {}
/**
* Constructs a new ChangeMessageVisibilityRequest object.
* Callers should use the setter or fluent setter (with...) methods to
* initialize any additional object members.
*
* @param queueUrl The URL of the Amazon SQS queue to take action on.
* @param receiptHandle The receipt handle associated with the message
* whose visibility timeout should be changed. This parameter is returned
* by the ReceiveMessage action.
* @param visibilityTimeout The new value (in seconds - from 0 to 43200 -
* maximum 12 hours) for the message's visibility timeout.
*/
public ChangeMessageVisibilityRequest(String queueUrl, String receiptHandle, Integer visibilityTimeout) {
setQueueUrl(queueUrl);
setReceiptHandle(receiptHandle);
setVisibilityTimeout(visibilityTimeout);
}
/**
* The URL of the Amazon SQS queue to take action on.
*
* @return The URL of the Amazon SQS queue to take action on.
*/
public String getQueueUrl() {
return queueUrl;
}
/**
* The URL of the Amazon SQS queue to take action on.
*
* @param queueUrl The URL of the Amazon SQS queue to take action on.
*/
public void setQueueUrl(String queueUrl) {
this.queueUrl = queueUrl;
}
/**
* The URL of the Amazon SQS queue to take action on.
*
* Returns a reference to this object so that method calls can be chained together.
*
* @param queueUrl The URL of the Amazon SQS queue to take action on.
*
* @return A reference to this updated object so that method calls can be chained
* together.
*/
public ChangeMessageVisibilityRequest withQueueUrl(String queueUrl) {
this.queueUrl = queueUrl;
return this;
}
/**
* The receipt handle associated with the message whose visibility
* timeout should be changed. This parameter is returned by the
* ReceiveMessage action.
*
* @return The receipt handle associated with the message whose visibility
* timeout should be changed. This parameter is returned by the
* ReceiveMessage action.
*/
public String getReceiptHandle() {
return receiptHandle;
}
/**
* The receipt handle associated with the message whose visibility
* timeout should be changed. This parameter is returned by the
* ReceiveMessage action.
*
* @param receiptHandle The receipt handle associated with the message whose visibility
* timeout should be changed. This parameter is returned by the
* ReceiveMessage action.
*/
public void setReceiptHandle(String receiptHandle) {
this.receiptHandle = receiptHandle;
}
/**
* The receipt handle associated with the message whose visibility
* timeout should be changed. This parameter is returned by the
* ReceiveMessage action.
*
* Returns a reference to this object so that method calls can be chained together.
*
* @param receiptHandle The receipt handle associated with the message whose visibility
* timeout should be changed. This parameter is returned by the
* ReceiveMessage action.
*
* @return A reference to this updated object so that method calls can be chained
* together.
*/
public ChangeMessageVisibilityRequest withReceiptHandle(String receiptHandle) {
this.receiptHandle = receiptHandle;
return this;
}
/**
* The new value (in seconds - from 0 to 43200 - maximum 12 hours) for
* the message's visibility timeout.
*
* @return The new value (in seconds - from 0 to 43200 - maximum 12 hours) for
* the message's visibility timeout.
*/
public Integer getVisibilityTimeout() {
return visibilityTimeout;
}
/**
* The new value (in seconds - from 0 to 43200 - maximum 12 hours) for
* the message's visibility timeout.
*
* @param visibilityTimeout The new value (in seconds - from 0 to 43200 - maximum 12 hours) for
* the message's visibility timeout.
*/
public void setVisibilityTimeout(Integer visibilityTimeout) {
this.visibilityTimeout = visibilityTimeout;
}
/**
* The new value (in seconds - from 0 to 43200 - maximum 12 hours) for
* the message's visibility timeout.
*
* Returns a reference to this object so that method calls can be chained together.
*
* @param visibilityTimeout The new value (in seconds - from 0 to 43200 - maximum 12 hours) for
* the message's visibility timeout.
*
* @return A reference to this updated object so that method calls can be chained
* together.
*/
public ChangeMessageVisibilityRequest withVisibilityTimeout(Integer visibilityTimeout) {
this.visibilityTimeout = visibilityTimeout;
return this;
}
/**
* Returns a string representation of this object; useful for testing and
* debugging.
*
* @return A string representation of this object.
*
* @see java.lang.Object#toString()
*/
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append("{");
if (getQueueUrl() != null) sb.append("QueueUrl: " + getQueueUrl() + ",");
if (getReceiptHandle() != null) sb.append("ReceiptHandle: " + getReceiptHandle() + ",");
if (getVisibilityTimeout() != null) sb.append("VisibilityTimeout: " + getVisibilityTimeout() );
sb.append("}");
return sb.toString();
}
@Override
public int hashCode() {
final int prime = 31;
int hashCode = 1;
hashCode = prime * hashCode + ((getQueueUrl() == null) ? 0 : getQueueUrl().hashCode());
hashCode = prime * hashCode + ((getReceiptHandle() == null) ? 0 : getReceiptHandle().hashCode());
hashCode = prime * hashCode + ((getVisibilityTimeout() == null) ? 0 : getVisibilityTimeout().hashCode());
return hashCode;
}
@Override
public boolean equals(Object obj) {
if (this == obj) return true;
if (obj == null) return false;
if (obj instanceof ChangeMessageVisibilityRequest == false) return false;
ChangeMessageVisibilityRequest other = (ChangeMessageVisibilityRequest)obj;
if (other.getQueueUrl() == null ^ this.getQueueUrl() == null) return false;
if (other.getQueueUrl() != null && other.getQueueUrl().equals(this.getQueueUrl()) == false) return false;
if (other.getReceiptHandle() == null ^ this.getReceiptHandle() == null) return false;
if (other.getReceiptHandle() != null && other.getReceiptHandle().equals(this.getReceiptHandle()) == false) return false;
if (other.getVisibilityTimeout() == null ^ this.getVisibilityTimeout() == null) return false;
if (other.getVisibilityTimeout() != null && other.getVisibilityTimeout().equals(this.getVisibilityTimeout()) == false) return false;
return true;
}
}