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< title > ActiveMQ Artemis JMS QueueRequestor Example< / title >
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< h1 > JMS QueueRequestor Example< / h1 >
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< pre > To run the example, simply type < b > mvn verify< / b > from this directory, < br > or < b > mvn -PnoServer verify< / b > if you want to start and create the server manually.< / pre >
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< p > This example shows you how to use a < a href = "http://java.sun.com/javaee/5/docs/api/javax/jms/QueueRequestor.html" > QueueRequestor< / a > with ActiveMQ Artemis.< / p >
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< p > JMS is mainly used to send messages asynchronously so that the producer of a message is not waiting for the result of the message consumption.
However, there are cases where it is necessary to have a synchronous behavior: the code sending a message requires a reply for this message
before continuing its execution.< br / >
A QueueRequestor facilitates this use case by providing a simple request/reply abstraction on top of JMS.< / p >
< p > The example consists in two classes:< / p >
< dl >
< dt > < code > TextReverserService< / code > < / dt >
< dd > A JMS MessageListener which consumes text messages and sends replies containing the reversed text< / dd >
< dt > < code > QueueRequestorExample< / code > < / dt >
< dd > A JMS Client which uses a QueueRequestor to send text requests to a queue and receive replies with the reversed text in a synchronous fashion< / dd >
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