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<p>Producers, consumers, and channels specify required qualities of service using Fabric3 policy. </p><h2>Transactional Receive</h2><p>A JMS consumer can be configured to receive an event in the context of a transaction using the <code>@ManagedTransaction</code> or <em>requires</em> attribute in a composite.</p><h2><span style="line-height: 1.5;">Durable Channels</span></h2><p>By default, channels are not durable. That is, messages are not persisted prior to delivery. A channel can be declared durable by setting the requires attribute to use "durable":</p><table class="wysiwyg-macro" data-macro-name="code" data-macro-default-parameter="xml" data-macro-schema-version="1" style="background-image: url(https://fabric3.atlassian.net/wiki/plugins/servlet/confluence/placeholder/macro-heading?definition=e2NvZGU6eG1sfQ&locale=en_GB&version=2); background-repeat: no-repeat;" data-macro-body-type="PLAIN_TEXT"><tr><td class="wysiwyg-macro-body"><pre><composite xmlns:f3="urn:fabric3.org" ...> <channel name="SomeChannel" requires="f3:durable"/> </composite> </pre></td></tr></table><p>Setting the channel to durable will result in channel binding transports using durable messaging to deliver events. Note setting a local channel to durable has no effect. </p><h2>Non-Persistent Channels</h2><p>By default, Fabric3 will use persistent messaging when a channel is bound to a messaging transport. Non-persistent messaging can be enabled by setting the requires attribute to use "nonPersistent":</p><table class="wysiwyg-macro" data-macro-name="code" data-macro-default-parameter="xml" data-macro-schema-version="1" style="background-image: url(https://fabric3.atlassian.net/wiki/plugins/servlet/confluence/placeholder/macro-heading?definition=e2NvZGU6eG1sfQ&locale=en_GB&version=2); background-repeat: no-repeat;" data-macro-body-type="PLAIN_TEXT"><tr><td class="wysiwyg-macro-body"><pre><composite xmlns:f3="urn:fabric3.org" ...> <channel name="SomeChannel" requires="f3:nonPersistent"/> </composite> </pre></td></tr></table>
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{"serverDuration": 348, "requestCorrelationId": "d697165f2d1d4438aa34dd8fe9bbe2bb"}