<h1>Java EE MDB Container Managed Transactions Example</h1>
<p>This example shows you how to send a message to an MDB that is delivered within a transaction controlled by the container</p>
<p>The example will send deploy a simple MDB and demonstrate sending a message and the MDB consuming it</p>
<p>The example leverages the JBoss Arquillian framework to run a WildFly instance and deploy the MDB.</p>
<h2>Example step-by-step</h2>
<p><i>download WildFly 8.0.0.Final from <ahref="http://wildfly.org/downloads/">here</a> and install.</i></p>
<p><i>set the JBOSS_HOME property to point to the WildFly install directory</i></p>
<p><i>type <code>mvn verify</code> from the example directory to run</i></p>
<ol>
<li>First we need to get an initial context so we can look-up the JMS connection factory and destination objects from JNDI. This initial context will get it's properties from the <code>jndi.properties</code> file in the directory <code>config</code></li>
<li>We take alook at the transaction and see that it is running.
</li>
<preclass="prettyprint">
<code>Transaction tx = tm.getTransaction();
if(tx != null)
{
System.out.println("we're in the middle of a transaction: " + tx);
}</code>
</pre>
<li>The MDB gets the text and prints it
</li>
<preclass="prettyprint">
<code>String text = tm.getText();
System.out.println("message " + text + " received");
</code>
</pre>
<li>And finally, <b>always</b> remember to close your JMS connections and resources after use, in a <code>finally</code> block. Closing a JMS connection will automatically close all of its sessions, consumers, producer and browser objects</li>
