public void setMessageId(String messageId) {
        this.messageId = messageId;
    }
<p>
An attribute containing the <code>MessageId</code> of the message sent to the queue. For more information, see <a
href
="https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-queue-message-identifiers.html"
>Queue and Message Identifiers</a> in the <i>Amazon SQS Developer Guide</i>.
</p>

@param messageId
       An attribute containing the <code>MessageId</code> of the message sent to the queue. For more information,
       see <a href=
       "https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-queue-message-identifiers.html"
       >Queue and Message Identifiers</a> in the <i>Amazon SQS Developer Guide</i>.
aws-java-sdk-sqs/src/main/java/com/amazonaws/services/sqs/model/SendMessageResult.java