49 lines
2.6 KiB
HTML
49 lines
2.6 KiB
HTML
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<html>
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<head>
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<title>ActiveMQ Artemis JMS XA Receive Example</title>
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<link rel="stylesheet" type="text/css" href="../../../common/common.css" />
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<link rel="stylesheet" type="text/css" href="../../../common/prettify.css" />
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<script type="text/javascript" src="../../../common/prettify.js"></script>
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<body onload="prettyPrint()">
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<h1>JMS XA Receive 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 demonstrates receiving a message within the scope of an XA transaction. When using an XA transaction
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the message will only be acknowledged and removed from the queue when the transaction is committed.
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If the transaction is not committed the message maybe redelivered after rollback or during XA recovery.</p>
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<p>ActiveMQ Artemis is JTA aware, meaning you can use ActiveMQ Artemis in an XA transactional environment
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and participate in XA transactions. It provides the javax.transaction.xa.XAResource interface for that
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purpose. Users can get a XAConnectionFactory to create XAConnections and XASessions.</p>
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<p>In this example we simulate a transaction manager to control the transactions. First we create an XASession
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for receiving and a normal session for sending. Then we start a new xa transaction and enlist the receiving
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XASession through its XAResource. We then send two words, 'hello' and 'world', receive them, and let the
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transaction roll back. The received messages are cancelled back to the queue. Next we start
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a new transaction with the same XAResource enlisted, but this time we commit the transaction after receiving the
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messages. Then we check that no more messages are to be received.</p>
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</body>
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</html>
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