activemq-artemis/examples/jms/openwire
jbertram 034adfbf9b ACTIVEMQ6-4 Rename HornetQ* classes to ActiveMQ* 2014-11-18 16:53:09 -06:00
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src/main ACTIVEMQ6-4 Rename HornetQ* classes to ActiveMQ* 2014-11-18 16:53:09 -06:00
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readme.html ACTIVEMQ6-2 Update to HQ master 2014-11-11 10:48:14 +00:00

readme.html

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    <title>HornetQ OpenWire Example</title>
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     <h1>JMS OpenWire Example</h1>

     <p>This example shows you how to configure HornetQ server to communicate with an ActiveMQ JMS client using ActiveMQ's native openwire protocol.</p>

     <h2>Example step-by-step</h2>
     <p><i>To run the example, simply type <code>mvn verify</code> from this directory</i></p>

     <ol>
        <li>First we need to create an ActiveMQ connection factory.</code></li>
        <pre class="prettyprint">
           <code>ConnectionFactory factory = new ActiveMQConnectionFactory(urlString);</code>
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        <li>Create the target queue</li>
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           <code>Queue queue = new ActiveMQQueue("exampleQueue");</code>
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        <li>We create a JMS connection and start it</li>
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           <code>connection = cf.createConnection();</code>
           <code>connection.start()</code>
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        <li>We create a JMS session. The session is created as non transacted and will auto acknowledge messages.</li>
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           <code>Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);</code>
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        <li>We create a JMS message producer on the session. This will be used to send the messages.</li>
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          <code>MessageProducer messageProducer = session.createProducer(topic);</code>
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        <li>We create a JMS text message that we are going to send.</li>
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           <code>TextMessage message = session.createTextMessage("This is a text message");</code>
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        <li>We send message to the queue</li>
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           <code>messageProducer.send(message);</code>
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        <li>We create a JMS Message Consumer to receive the message.</li>
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           <code>MessageConsumer messageConsumer = session.createConsumer(queue);</code>
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        <li>The message arrives at the consumer. In this case we use a timeout of 5000 milliseconds but we could use a blocking 'receive()'</li>
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           <code>TextMessage messageReceived = (TextMessage) messageConsumer.receive(5000);</code>
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        <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>

        <pre class="prettyprint">
           <code>finally
           {
              if (connection != null)
              {
                 connection.close();
              }
           }</code>
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