Modified: websites/production/camel/content/jms.html ============================================================================== --- websites/production/camel/content/jms.html (original) +++ websites/production/camel/content/jms.html Tue Jul 26 20:20:34 2016 @@ -106,7 +106,7 @@ </div></div><p>To connect to a topic, you <em>must</em> include the <code>topic:</code> prefix. For example, to<br clear="none"> connect to the topic, <code>Stocks.Prices</code>, use:</p><div class="code panel pdl" style="border-width: 1px;"><div class="codeContent panelContent pdl"> <script class="brush: java; gutter: false; theme: Default" type="syntaxhighlighter"><![CDATA[jms:topic:Stocks.Prices ]]></script> -</div></div><p>You append query options to the URI using the following format, <code>?option=value&option=value&...</code></p><h3 id="JMS-Notes">Notes</h3><h4 id="JMS-UsingActiveMQ">Using ActiveMQ</h4><p>The JMS component reuses Spring 2's <code>JmsTemplate</code> for sending messages. This is not ideal for use in a non-J2EE container and typically requires some caching in the JMS provider to avoid <a shape="rect" class="external-link" href="http://activemq.apache.org/jmstemplate-gotchas.html";>poor performance</a>.</p><p>If you intend to use <a shape="rect" class="external-link" href="http://activemq.apache.org/";>Apache ActiveMQ</a> as your Message Broker - which is a good choice as ActiveMQ rocks <img class="emoticon emoticon-smile" src="https://cwiki.apache.org/confluence/s/en_GB/5982/f2b47fb3d636c8bc9fd0b11c0ec6d0ae18646be7.1/_/images/icons/emoticons/smile.png"; data-emoticon-name="smile" alt="(smile)"> , then we recommend that you either:</p><ul><li>Use the <a shape="rect " href="activemq.html">ActiveMQ</a> component, which is already optimized to use ActiveMQ efficiently</li><li>Use the <code>PoolingConnectionFactory</code> in ActiveMQ.</li></ul><h4 id="JMS-TransactionsandCacheLevels">Transactions and Cache Levels</h4><p><span class="confluence-anchor-link" id="JMS-transactionCacheLevels"></span><br clear="none"> If you are consuming messages and using transactions (<code>transacted=true</code>) then the default settings for cache level can impact performance.<br clear="none"> If you are using XA transactions then you cannot cache as it can cause the XA transaction to not work properly.</p><p>If you are <strong>not</strong> using XA, then you should consider caching as it speeds up performance, such as setting <code>cacheLevelName=CACHE_CONSUMER</code>.</p><p>Through Camel 2.7.x, the default setting for <code>cacheLevelName</code> is <code>CACHE_CONSUMER</code>. You will need to explicitly set <code>cacheLevelName=CACHE_NONE</code>.<br clear="none"> In Camel 2.8 onwards, the default setting for <code>cacheLevelName</code> is <code>CACHE_AUTO</code>. This default auto detects the mode and sets the cache level accordingly to:</p><ul class="alternate"><li>CACHE_CONSUMER = if transacted=false</li><li>CACHE_NONE = if transacted=true</li></ul><p>So you can say the default setting is conservative. Consider using <code>cacheLevelName=CACHE_CONSUMER</code> if you are using non-XA transactions.</p><h4 id="JMS-DurableSubscriptions">Durable Subscriptions</h4><p>If you wish to use durable topic subscriptions, you need to specify both <strong>clientId</strong> and <strong>durableSubscriptionName</strong>. The value of the <code>clientId</code> must be unique and can only be used by a single JMS connection instance in your entire network. You may prefer to use <a shape="rect" class="external-link" href="http://activemq.apache.org/virtual-destinations.html";>Virtual Topics</a> instead to avoid this limitation. More background on durable messag ing <a shape="rect" class="external-link" href="http://activemq.apache.org/how-do-durable-queues-and-topics-work.html";>here</a>.</p><h4 id="JMS-MessageHeaderMapping">Message Header Mapping</h4><p>When using message headers, the JMS specification states that header names must be valid Java identifiers. So try to name your headers to be valid Java identifiers. One benefit of doing this is that you can then use your headers inside a JMS Selector (whose SQL92 syntax mandates Java identifier syntax for headers).</p><p>A simple strategy for mapping header names is used by default. The strategy is to replace any dots and hyphens in the header name as shown below and to reverse the replacement when the header name is restored from a JMS message sent over the wire. What does this mean? No more losing method names to invoke on a bean component, no more losing the filename header for the File Component, and so on.</p><p>The current header name strategy for accepting header names in Camel is as follows:</p><ul class="alternate"><li>Dots are replaced by <code>_DOT_</code> and the replacement is reversed when Camel consume the message</li><li>Hyphen is replaced by <code>_HYPHEN_</code> and the replacement is reversed when Camel consumes the message</li></ul><h3 id="JMS-Options">Options</h3><p>You can configure many different properties on the JMS endpoint which map to properties on the <a shape="rect" class="external-link" href="http://camel.apache.org/maven/current/camel-jms/apidocs/org/apache/camel/component/jms/JmsConfiguration.html";>JMSConfiguration POJO</a>.</p><div class="confluence-information-macro confluence-information-macro-note"><p class="title">Mapping to Spring JMS</p><span class="aui-icon aui-icon-small aui-iconfont-warning confluence-information-macro-icon"></span><div class="confluence-information-macro-body"><p>Many of these properties map to properties on Spring JMS, which Camel uses for sending and receiving messages. So you can get more information abou t these properties by consulting the relevant Spring documentation.</p></div></div><p>The options are divided into two tables, the first one with the most common options used. The latter contains the rest.</p><h4 id="JMS-Mostcommonlyusedoptions">Most commonly used options</h4><div class="confluenceTableSmall"><div class="table-wrap"><table class="confluenceTable"><tbody><tr><th colspan="1" rowspan="1" class="confluenceTh"><p>Option</p></th><th colspan="1" rowspan="1" class="confluenceTh"><p>Default Value</p></th><th colspan="1" rowspan="1" class="confluenceTh"><p>Description</p></th></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>clientId</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Sets the JMS client ID to use. Note that this value, if specified, must be unique and can only be used by a single JMS connection instance. It is typically only required for durable topi c subscriptions. You may prefer to use <a shape="rect" class="external-link" href="http://activemq.apache.org/virtual-destinations.html";>Virtual Topics</a> instead.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>concurrentConsumers</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>1</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Specifies the default number of concurrent consumers. From <strong>Camel 2.10.3</strong> onwards this option can also be used when doing request/reply over JMS. From <strong>Camel 2.16</strong> onwards there is a new replyToConcurrentConsumers. See also the <code>maxMessagesPerTask</code> option to control dynamic scaling up/down of threads.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><code>replyToConcurrentConsumers</code></td><td colspan="1" rowspan="1" class="confluenceTd">1</td><td colspan="1" rowspan="1" class="confluenceTd"><strong>Camel 2.16:</strong> <span>Sp ecifies the default number of concurrent consumers when doing request/reply over JMS.</span></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>disableReplyTo</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>If <code>true</code>, a producer will behave like a InOnly exchange with the exception that <code>JMSReplyTo</code> header is sent out and not be suppressed like in the case of <code>InOnly</code>. Like <code>InOnly</code> the producer will not wait for a reply. A consumer with this flag will behave like <code>InOnly</code>. This feature can be used to bridge <code>InOut</code> requests to another queue so that a route on the other queue will send it´s response directly back to the original <code>JMSReplyTo</code>.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>durableSubscriptionName</code></p></td><td colspan="1" rowspan="1" clas s="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>The durable subscriber name for specifying durable topic subscriptions. The <code>clientId</code> option <strong>must</strong> be configured as well.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>maxConcurrentConsumers</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>1</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Specifies the maximum number of concurrent consumers. From <strong>Camel 2.10.3</strong> onwards this option can also be used when doing request/reply over JMS. <span>From </span><strong>Camel 2.16</strong><span> onwards there is a new replyToMaxConcurrentConsumers. </span>See also the <code>maxMessagesPerTask</code> option to control dynamic scaling up/down of threads. The <code>maxMessagesPerTask</code><span> option MUST be set to an integer greater than 0 for threads to scale down. Otherwise, the numb er of threads will stay at <span>maxConcurrentConsumers until shutdown.</span></span></p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><code>replyToMaxConcurrentConsumers</code></td><td colspan="1" rowspan="1" class="confluenceTd">1</td><td colspan="1" rowspan="1" class="confluenceTd"><strong>Camel 2.16:</strong> <span>Specifies the maximum number of concurrent consumers when doing request/reply over JMS. <span>See also the </span><code>maxMessagesPerTask</code><span> option to control dynamic scaling up/down of threads.</span></span></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><code>replyToOnTimeoutMaxConcurrentConsumers</code></td><td colspan="1" rowspan="1" class="confluenceTd">1</td><td colspan="1" rowspan="1" class="confluenceTd"><strong>Camel 2.17.2:</strong> Specifies the maximum number of concurrent consumers for continue routing when timeout occurred when using request/reply over JMS.</td></tr><tr><td colspan="1" rowspan="1" class="conflue nceTd"><p><code>maxMessagesPerTask</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>-1</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>The number of messages per task. -1 is unlimited. If you use a range for concurrent consumers (eg min < max), then this option can be used to set a value to eg <code>100</code> to control how fast the consumers will shrink when less work is required.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>preserveMessageQos</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Set to <code>true</code>, if you want to send message using the QoS settings specified on the message, instead of the QoS settings on the JMS endpoint. The following three headers are considered <code>JMSPriority</code>, <code>JMSDeliveryMode</code>, and <code>JMSExpiration</code>. You can provide all or only some of them. If not provided, Camel will fall back to use the values from the endpoint instead. So, when using this option, the headers override the values from the endpoint. The <code>explicitQosEnabled</code> option, by contrast, will only use options set on the endpoint, and not values from the message header.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>replyTo</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Provides an explicit ReplyTo destination, which overrides any incoming value of <code>Message.getJMSReplyTo()</code>. If you do <a shape="rect" href="request-reply.html">Request Reply</a> over JMS then <strong>make sure</strong> to read the section <em>Request-reply over JMS</em> further below for more details, and the <code>replyToType</code> option as well.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>replyToOverride</code></p></td ><td colspan="1" rowspan="1" >class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" >class="confluenceTd"><p><strong>Camel 2.15:</strong> Provides an explicit >ReplyTo destination in the JMS message, which overrides the setting of >replyTo. It is useful if you want to forward the message to a remote Queue >and receive the reply message from the ReplyTo >destination.</p></td></tr><tr><td colspan="1" rowspan="1" >class="confluenceTd"><p><code>replyToType</code></p></td><td colspan="1" >rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" >rowspan="1" class="confluenceTd"><p><strong>Camel 2.9:</strong> Allows for >explicitly specifying which kind of strategy to use for replyTo queues when >doing request/reply over JMS. Possible values are: <code>Temporary</code>, ><code>Shared</code>, or <code>Exclusive</code>. By default Camel will use >temporary queues. However if <code>replyTo</code> has been configured, then ><code>Shared</code> is used by default . This option allows you to use exclusive queues instead of shared ones. See further below for more details, and especially the notes about the implications if running in a clustered environment, and the fact that <code>Shared</code> reply queues has lower performance than its alternatives <code>Temporary</code> and <code>Exclusive</code>.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>requestTimeout</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>20000</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Producer only:</strong> The timeout for waiting for a reply when using the InOut <a shape="rect" href="exchange-pattern.html">Exchange Pattern</a> (in milliseconds). The default is 20 seconds. From <strong>Camel 2.13/2.12.3</strong> onwards you can include the header <code>"CamelJmsRequestTimeout"</code> to override this endpoint configured timeout value, and thus have per message individual timeout values. See below in section <em>About time to live</em> for more details. See also the <em>requestTimeoutCheckerInterval</em> option.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>selector</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Sets the JMS Selector, which is an SQL 92 predicate that is used to filter messages within the broker. You may have to encode special characters such as = as %3D <strong>Before Camel 2.3.0</strong>, we don't support this option in CamelConsumerTemplate</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>timeToLive</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>When sending messages, specifies the time-to-live of the message (in milliseconds). See below in section <em>About time to live</em> for more details.</p></t d></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>transacted</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Specifies whether to use transacted mode for sending/receiving messages using the InOnly <a shape="rect" href="exchange-pattern.html">Exchange Pattern</a>.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>testConnectionOnStartup</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.1:</strong> Specifies whether to test the connection on startup. This ensures that when Camel starts that all the JMS consumers have a valid connection to the JMS broker. If a connection cannot be granted then Camel throws an exception on startup. This ensures that Camel is not started with failed connections. From <strong>Camel 2.8</strong> onwards al so the JMS producers is tested as well.</p></td></tr></tbody></table></div><h4 id="JMS-Alltheotheroptions">All the other options</h4><div class="confluenceTableSmall"> </div><div class="table-wrap"><table class="confluenceTable"><tbody><tr><th colspan="1" rowspan="1" class="confluenceTh"><p>Option</p></th><th colspan="1" rowspan="1" class="confluenceTh"><p>Default Value</p></th><th colspan="1" rowspan="1" class="confluenceTh"><p>Description</p></th></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>acceptMessagesWhileStopping</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Specifies whether the consumer accept messages while it is stopping. You may consider enabling this option, if you start and stop <a shape="rect" href="jms.html">JMS</a> routes at runtime, while there are still messages enqued on the queue. If this option is <code>false</code>, and you stop the <a shape="rect" href="jms.html">JMS</a> route, then messages may be rejected, and the JMS broker would have to attempt redeliveries, which yet again may be rejected, and eventually the message may be moved at a dead letter queue on the JMS broker. To avoid this its recommended to enable this option.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><pre>allowReplyManagerQuickStop</pre></td><td colspan="1" rowspan="1" class="confluenceTd"><pre>false</pre></td><td colspan="1" rowspan="1" class="confluenceTd">Whether the <code>DefaultMessageListenerContainer</code> used in the reply managers for request-reply messaging allow the <code>DefaultMessageListenerContainer.runningAllowed</code> flag to quick stop in case link <code>JmsConfigurationisAcceptMessagesWhileStopping()</code> is enabled and <code>CamelContext</code> is currently being stopped. This quick stop ability is enabled by default in the regular JMS consumers but to enable for reply managers you must enable thi s flag.</td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>acknowledgementModeName</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>AUTO_ACKNOWLEDGE</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>The JMS acknowledgement name, which is one of: <code>SESSION_TRANSACTED</code>, <code>CLIENT_ACKNOWLEDGE</code>, <code>AUTO_ACKNOWLEDGE</code>, <code>DUPS_OK_ACKNOWLEDGE</code></p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>acknowledgementMode</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>-1</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>The JMS acknowledgement mode defined as an Integer. Allows you to set vendor-specific extensions to the acknowledgment mode. For the regular modes, it is preferable to use the <code>acknowledgementModeName</code> instead.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>allowNullBody</code></p>< /td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>true</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.9.3/2.10.1:</strong> Whether to allow sending messages with no body. If this option is <code>false</code> and the message body is null, then an <code>JMSException</code> is thrown.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>alwaysCopyMessage</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>If <code>true</code>, Camel will always make a JMS message copy of the message when it is passed to the producer for sending. Copying the message is needed in some situations, such as when a <code>replyToDestinationSelectorName</code> is set (incidentally, Camel will set the <code>alwaysCopyMessage</code> option to <code>true</code>, if a <code>replyToDestinationSelectorName</code> is set)</p></td></tr><tr><td colspan="1" r owspan="1" class="confluenceTd"><p><code>asyncConsumer</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.9:</strong> Whether the <code>JmsConsumer</code> processes the <a shape="rect" href="exchange.html">Exchange</a> <a shape="rect" href="asynchronous-routing-engine.html">asynchronously</a>. If enabled then the <code>JmsConsumer</code> may pickup the next message from the JMS queue, while the previous message is being processed asynchronously (by the <a shape="rect" href="asynchronous-routing-engine.html">Asynchronous Routing Engine</a>). This means that messages may be processed not 100% strictly in order. If disabled (as default) then the <a shape="rect" href="exchange.html">Exchange</a> is fully processed before the <code>JmsConsumer</code> will pickup the next message from the JMS queue. Note if <code>transacted</code> has been enabled, then <code>asyncConsumer=true</ code> does not run asynchronously, as transactions must be executed synchronously (Camel 3.0 may support async transactions).</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>asyncStartListener</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.10:</strong> Whether to startup the <code>JmsConsumer</code> message listener asynchronously, when starting a route. For example if a <code>JmsConsumer</code> cannot get a connection to a remote JMS broker, then it may block while retrying and/or failover. This will cause Camel to block while starting routes. By setting this option to <code>true</code>, you will let routes startup, while the <code>JmsConsumer</code> connects to the JMS broker using a dedicated thread in asynchronous mode. If this option is used, then beware that if the connection could not be established, then an exception is logged at <code >WARN</code> level, and the consumer will not be able to receive messages; You >can then restart the route to retry.</p></td></tr><tr><td colspan="1" >rowspan="1" >class="confluenceTd"><p><code>asyncStopListener</code></p></td><td >colspan="1" rowspan="1" >class="confluenceTd"><p><code>false</code></p></td><td colspan="1" >rowspan="1" class="confluenceTd"><p><strong>Camel 2.10:</strong> Whether to >stop the <code>JmsConsumer</code> message listener asynchronously, when >stopping a route.</p></td></tr><tr><td colspan="1" rowspan="1" >class="confluenceTd"><p><code>autoStartup</code></p></td><td colspan="1" >rowspan="1" class="confluenceTd"><p><code>true</code></p></td><td colspan="1" >rowspan="1" class="confluenceTd"><p>Specifies whether the consumer container >should auto-startup.</p></td></tr><tr><td colspan="1" rowspan="1" >class="confluenceTd"><p><code>cacheLevelName</code></p></td><td colspan="1" >rowspan="1" class="confluenceTd"><p>CACHE_AUTO (Camel >= 2.8.0)<br >clear="none" class="atl-for ced-newline"> CACHE_CONSUMER (Camel <= 2.7.1)</p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Sets the cache level by name for the underlying JMS resources. Possible values are: <code>CACHE_AUTO</code>, <code>CACHE_CONNECTION</code>, <code>CACHE_CONSUMER</code>, <code>CACHE_NONE</code>, and <code>CACHE_SESSION</code>. The default setting for <strong>Camel 2.8</strong> and newer is <code>CACHE_AUTO</code>. For <strong>Camel 2.7.1</strong> and older the default is <code>CACHE_CONSUMER</code>. See the <a shape="rect" class="external-link" href="http://static.springframework.org/spring/docs/2.5.x/api/org/springframework/jms/listener/DefaultMessageListenerContainer.html"; rel="nofollow">Spring documentation</a> and <a shape="rect" href="#JMS-transactionCacheLevels">Transactions Cache Levels</a> for more information.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>cacheLevel</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> < /p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Sets the cache level by ID for the underlying JMS resources. See <code>cacheLevelName</code> option for more details.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>consumerType</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Default</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>The consumer type to use, which can be one of: <code>Simple</code>, <code>Default</code>, or <code>Custom</code>. The consumer type determines which Spring JMS listener to use. <code>Default</code> will use <code>org.springframework.jms.listener.DefaultMessageListenerContainer</code>, <code>Simple</code> will use <code>org.springframework.jms.listener.SimpleMessageListenerContainer</code>. When <code>Custom</code> is specified, the <code>MessageListenerContainerFactory</code> defined by the <code>messageListenerContainerFactoryRef</code> option will determine what <code>org.sp ringframework.jms.listener.AbstractMessageListenerContainer</code> to use (<strong>new option in Camel 2.10.2 onwards</strong>). This option was temporary removed in Camel 2.7 and 2.8. But has been added back from Camel 2.9 onwards.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>connectionFactory</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>The default JMS connection factory to use for the <code>listenerConnectionFactory</code> and <code>templateConnectionFactory</code>, if neither is specified.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>defaultTaskExecutorType</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>(see description)</p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.10.4:</strong> Specifies what default TaskExecutor type to use in the DefaultMessageListenerContainer, for b oth consumer endpoints and the ReplyTo consumer of producer endpoints. Possible values: <code>SimpleAsync</code> (uses Spring's <a shape="rect" class="external-link" href="http://static.springsource.org/spring/docs/current/javadoc-api/org/springframework/core/task/SimpleAsyncTaskExecutor.html"; rel="nofollow">SimpleAsyncTaskExecutor</a>) or <code>ThreadPool</code> (uses Spring's <a shape="rect" class="external-link" href="http://static.springsource.org/spring/docs/current/javadoc-api/org/springframework/scheduling/concurrent/ThreadPoolTaskExecutor.html"; rel="nofollow">ThreadPoolTaskExecutor</a> with optimal values - cached threadpool-like). If not set, it defaults to the previous behaviour, which uses a cached thread pool for consumer endpoints and SimpleAsync for reply consumers. The use of <code>ThreadPool</code> is recommended to reduce "thread trash" in elastic configurations with dynamically increasing and decreasing concurrent consumers.</p></td></tr><tr><td colspan="1" rowspan ="1" class="confluenceTd"><p><code>deliveryMode</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>null</p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.12.2/2.13:</strong> Specifies the delivery mode to be used. Possibles values are those defined by <code>javax.jms.DeliveryMode</code>.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>deliveryPersistent</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>true</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Specifies whether persistent delivery is used by default.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>destination</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Specifies the JMS Destination object to use on this endpoint.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code> destinationName</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Specifies the JMS destination name to use on this endpoint.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>destinationResolver</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>A pluggable <code>org.springframework.jms.support.destination.DestinationResolver</code> that allows you to use your own resolver (for example, to lookup the real destination in a JNDI registry).</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>disableTimeToLive</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.8:</strong> Use this option to force disabling time to live. For example when you do request/reply over JMS, then Camel will by default use the <code>requestTimeout</code> value as time to live on the message being sent. The problem is that the sender and receiver systems have to have their clocks synchronized, so they are in sync. This is not always so easy to archive. So you can use <code>disableTimeToLive=true</code> to <strong>not</strong> set a time to live value on the sent message. Then the message will not expire on the receiver system. See below in section <em>About time to live</em> for more details.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>eagerLoadingOfProperties</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Enables eager loading of JMS properties as soon as a message is received, which is generally inefficient, because the JMS properties might not be required. But this feature can sometimes catch early any issues with the underlying JMS provider and the use of JMS properties. This feature can also be used for testing purposes, to ensure JMS properties can be understood and handled correctly.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>exceptionListener</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Specifies the JMS Exception Listener that is to be notified of any underlying JMS exceptions.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>errorHandler</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.8.2, 2.9:</strong> Specifies a <code>org.springframework.util.ErrorHandler</code> to be invoked in case of any uncaught exceptions thrown while processing a <code>Message</code>. By default these exceptions will be logged at the WARN level, i f no <code>errorHandler</code> has been configured. From <strong>Camel 2.9.1:</strong> onwards you can configure logging level and whether stack traces should be logged using the below two options. This makes it much easier to configure, than having to code a custom <code>errorHandler</code>.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>errorHandlerLoggingLevel</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>WARN</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.9.1:</strong> Allows to configure the default <code>errorHandler</code> logging level for logging uncaught exceptions.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>errorHandlerLogStackTrace</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>true</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.9.1:</strong> Allows to control whether stacktraces should be logged or not, by the default <code>errorHandler</code>.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>explicitQosEnabled</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Set if the <code>deliveryMode</code>, <code>priority</code> or <code>timeToLive</code> qualities of service should be used when sending messages. This option is based on Spring's <code>JmsTemplate</code>. The <code>deliveryMode</code>, <code>priority</code> and <code>timeToLive</code> options are applied to the current endpoint. This contrasts with the <code>preserveMessageQos</code> option, which operates at message granularity, reading QoS properties exclusively from the Camel In message headers.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>exposeListenerSession</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>true</code></p></td><td c olspan="1" rowspan="1" class="confluenceTd"><p>Specifies whether the listener session should be exposed when consuming messages.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>forceSendOriginalMessage</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.7:</strong> When using <code>mapJmsMessage=false</code> Camel will create a new JMS message to send to a new JMS destination if you touch the headers (get or set) during the route. Set this option to <code>true</code> to force Camel to send the original JMS message that was received.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>idleTaskExecutionLimit</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>1</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Specifies the limit for idle executions of a receive task, not having received an y message within its execution. If this limit is reached, the task will shut down and leave receiving to other executing tasks (in the case of dynamic scheduling; see the <code>maxConcurrentConsumers</code> setting). There is additional doc available from <a shape="rect" class="external-link" href="http://static.springsource.org/spring/docs/3.0.5.RELEASE/api/org/springframework/jms/listener/DefaultMessageListenerContainer.html#setIdleTaskExecutionLimit(int)" rel="nofollow">Spring</a>.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>idleConsumerLimit</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>1</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.8.2, 2.9:</strong> Specify the limit for the number of consumers that are allowed to be idle at any given time.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>includeSentJMSMessageID</code></p></td><td colspan="1" rowspan="1" cl ass="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.10.3:</strong> Only applicable when sending to JMS destination using InOnly (eg fire and forget). Enabling this option will enrich the Camel <a shape="rect" href="exchange.html">Exchange</a> with the actual JMSMessageID that was used by the JMS client when the message was sent to the JMS destination.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>includeAllJMSXProperties</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.11.2/2.12:</strong> Whether to include all JMSXxxx properties when mapping from JMS to Camel Message. Setting this to <code>true</code> will include properties such as <code>JMSXAppID</code>, and <code>JMSXUserID</code> etc. <strong>Note:</strong> If you are using a custom <code>headerFilterStrategy</code> then thi s option does not apply.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>jmsMessageType</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Allows you to force the use of a specific <code>javax.jms.Message</code> implementation for sending JMS messages. Possible values are: <code>Bytes</code>, <code>Map</code>, <code>Object</code>, <code>Stream</code>, <code>Text</code>. By default, Camel would determine which JMS message type to use from the In body type. This option allows you to specify it.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>jmsKeyFormatStrategy</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>default</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Pluggable strategy for encoding and decoding JMS keys so they can be compliant with the JMS specification. Camel provides two implemen tations out of the box: <code>default</code> and <code>passthrough</code>. The <code>default</code> strategy will safely marshal dots and hyphens (<code>.</code> and <code>-</code>). The <code>passthrough</code> strategy leaves the key as is. Can be used for JMS brokers which do not care whether JMS header keys contain illegal characters. You can provide your own implementation of the <code>org.apache.camel.component.jms.JmsKeyFormatStrategy</code> and refer to it using the <code>#</code> notation.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>jmsOperations</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Allows you to use your own implementation of the <code>org.springframework.jms.core.JmsOperations</code> interface. Camel uses <code>JmsTemplate</code> as default. Can be used for testing purpose, but not used much as stated in the spring API docs.</p></td></ tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>lazyCreateTransactionManager</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>true</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>If <code>true</code>, Camel will create a <code>JmsTransactionManager</code>, if there is no <code>transactionManager</code> injected when option <code>transacted=true</code>.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>listenerConnectionFactory</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>The JMS connection factory used for consuming messages.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>mapJmsMessage</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>true</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Specifies whether Camel should auto map the re ceived JMS message to an appropiate payload type, such as <code>javax.jms.TextMessage</code> to a <code>String</code> etc. See section about how mapping works below for more details.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>maximumBrowseSize</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>-1</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Limits the number of messages fetched at most, when browsing endpoints using <a shape="rect" href="browse.html">Browse</a> or JMX API.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>messageConverter</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>To use a custom Spring <code>org.springframework.jms.support.converter.MessageConverter</code> so you can be 100% in control how to map to/from a <code>javax.jms.Message</code>.</p></td></tr><tr><td colspan ="1" rowspan="1" class="confluenceTd"><p><code>messageIdEnabled</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>true</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>When sending, specifies whether message IDs should be added.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>messageListenerContainerFactoryRef</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.10.2:</strong> Registry ID of the <code>MessageListenerContainerFactory</code> used to determine what <code>org.springframework.jms.listener.AbstractMessageListenerContainer</code> to use to consume messages. Setting this will automatically set <code>consumerType</code> to <code>Custom</code>.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>messageTimestampEnabled</code></p></td><td colspan="1" rowspan="1" class="confluenceTd "><p><code>true</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Specifies whether timestamps should be enabled by default on sending messages.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>password</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>The password for the connector factory.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>priority</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>4</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Values greater than 1 specify the message priority when sending (where 0 is the lowest priority and 9 is the highest). The <code>explicitQosEnabled</code> option <strong>must</strong> also be enabled in order for this option to have any effect.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>pubSubNoLocal</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Specifies whether to inhibit the delivery of messages published by its own connection.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>receiveTimeout</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>1000</p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>The timeout for receiving messages (in milliseconds).</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>recoveryInterval</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>5000</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Specifies the interval between recovery attempts, i.e. when a connection is being refreshed, in milliseconds. The default is 5000 ms, that is, 5 seconds.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><code>replyToSameDestinationAllowed</ code></td><td colspan="1" rowspan="1" class="confluenceTd"><code>false</code></td><td colspan="1" rowspan="1" class="confluenceTd"><strong>Camel 2.16:</strong> <strong>Consumer only:</strong>Whether a JMS consumer is allowed to send a reply message to the same destination that the consumer is using to consume from. This prevents an endless loop by consuming and sending back the same message to itself.</td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>replyToCacheLevelName</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>CACHE_CONSUMER</p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.9.1:</strong> Sets the cache level by name for the reply consumer when doing request/reply over JMS. This option only applies when using fixed reply queues (not temporary). Camel will by default use: <code>CACHE_CONSUMER</code> for exclusive or shared w/ <code>replyToSelectorName</code>. And <code>CACHE_SESSION</code> for shared without <c ode>replyToSelectorName</code>. Some JMS brokers such as IBM WebSphere may require to set the <code>replyToCacheLevelName=CACHE_NONE</code> to work. <strong>Note:</strong> If using temporary queues then <code>CACHE_NONE</code> is not allowed, and you must use a higher value such as <code>CACHE_CONSUMER</code> or <code>CACHE_SESSION</code>.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>replyToDestinationSelectorName</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Sets the JMS Selector using the fixed name to be used so you can filter out your own replies from the others when using a shared queue (that is, if you are not using a temporary reply queue).</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>replyToDeliveryPersistent</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>true</code></p></td><td colspan="1" ro wspan="1" class="confluenceTd"><p>Specifies whether to use persistent delivery by default for replies.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>requestTimeoutCheckerInterval</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>1000</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.9.2:</strong> Configures how often Camel should check for timed out <a shape="rect" href="exchange.html">Exchange</a>s when doing request/reply over JMS.By default Camel checks once per second. But if you must react faster when a timeout occurs, then you can lower this interval, to check more frequently. The timeout is determined by the option <em>requestTimeout</em>.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>subscriptionDurable</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>@depreca ted:</strong> Enabled by default, if you specify a <code>durableSubscriptionName</code> and a <code>clientId</code>.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>taskExecutor</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Allows you to specify a custom task executor for consuming messages.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>taskExecutorSpring2</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.6:</strong> To use when using Spring 2.x with Camel. Allows you to specify a custom task executor for consuming messages.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>templateConnectionFactory</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td co lspan="1" rowspan="1" class="confluenceTd"><p>The JMS connection factory used for sending messages.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>transactedInOut</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>@deprecated:</strong> Specifies whether to use transacted mode for sending messages using the InOut <a shape="rect" href="exchange-pattern.html">Exchange Pattern</a>. Applies only to producer endpoints. See section <a shape="rect" href="#JMS-transactedConsumption">Enabling Transacted Consumption</a> for more details.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>transactionManager</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>The Spring transaction manager to use.</p></td></tr><tr><td colspan="1" rowspan="1" class="con fluenceTd"><p><code>transactionName</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>"JmsConsumer[destinationName]"</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>The name of the transaction to use.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>transactionTimeout</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>The timeout value of the transaction (in seconds), if using transacted mode.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>transferException</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>If enabled and you are using <a shape="rect" href="request-reply.html">Request Reply</a> messaging (InOut) and an <a shape="rect" href="exchange.html">Exchange</a> failed on the consumer side, then t he caused <code>Exception</code> will be send back in response as a <code>javax.jms.ObjectMessage</code>. If the client is Camel, the returned <code>Exception</code> is rethrown. This allows you to use Camel <a shape="rect" href="jms.html">JMS</a> as a bridge in your routing - for example, using persistent queues to enable robust routing. Notice that if you also have <strong>transferExchange</strong> enabled, this option takes precedence. The caught exception is required to be serializable. The original <code>Exception</code> on the consumer side can be wrapped in an outer exception such as <code>org.apache.camel.RuntimeCamelException</code> when returned to the producer.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><code>transferFault</code></td><td colspan="1" rowspan="1" class="confluenceTd"><code>false</code></td><td colspan="1" rowspan="1" class="confluenceTd"><strong>Camel 2.17:</strong> If enabled and you are using Request Reply messaging (InOut) and an E xchange failed with a SOAP fault (not exception) on the consumer side, then the fault flag on org.apache.camel.Message.isFault() will be send back in the response as a JMS header with the key JmsConstants.JMS_TRANSFER_FAULT. If the client is Camel, the returned fault flag will be set on the org.apache.camel.Message.setFault(boolean). You may want to enable this when using Camel components that support faults such as SOAP based such as cxf or spring-ws.</td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>transferExchange</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>You can transfer the exchange over the wire instead of just the body and headers. The following fields are transferred: In body, Out body, Fault body, In headers, Out headers, Fault headers, exchange properties, exchange exception. This requires that the objects are serializable. Camel will exclude any no n-serializable objects and log it at <code>WARN</code> level. You <strong>must</strong> enable this option on both the producer and consumer side, so Camel knows the payloads is an Exchange and not a regular payload.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>username</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>The username for the connector factory.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>useMessageIDAsCorrelationID</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Specifies whether <code>JMSMessageID</code> should always be used as <code>JMSCorrelationID</code> for <strong>InOut</strong> messages.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>useVersion102</code></p></td><td colspan="1" rowspa n="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>@deprecated (removed from Camel 2.5 onwards):</strong> Specifies whether the old JMS API should be used.</p></td></tr></tbody></table></div></div><h3 id="JMS-MessageMappingbetweenJMSandCamel">Message Mapping between JMS and Camel</h3><p>Camel automatically maps messages between <code>javax.jms.Message</code> and <code>org.apache.camel.Message</code>.</p><p>When sending a JMS message, Camel converts the message body to the following JMS message types:</p><div class="confluenceTableSmall"><div class="table-wrap"><table class="confluenceTable"><tbody><tr><th colspan="1" rowspan="1" class="confluenceTh"><p>Body Type</p></th><th colspan="1" rowspan="1" class="confluenceTh"><p>JMS Message</p></th><th colspan="1" rowspan="1" class="confluenceTh"><p>Comment</p></th></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>String</code></p></td><td colspan="1" rowspan ="1" class="confluenceTd"><p><code>javax.jms.TextMessage</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>org.w3c.dom.Node</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>javax.jms.TextMessage</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>The DOM will be converted to <code>String</code>.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Map</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>javax.jms.MapMessage</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>java.io.Serializable</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>javax.jms.ObjectMessage</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> </p></td></tr><tr><td colspan="1" rowspan="1" cla ss="confluenceTd"><p><code>byte[]</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>javax.jms.BytesMessage</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>java.io.File</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>javax.jms.BytesMessage</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>java.io.Reader</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>javax.jms.BytesMessage</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>java.io.InputStream</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>javax.jms.BytesMessage</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> </p></td></ tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>java.nio.ByteBuffer</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>javax.jms.BytesMessage</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> </p></td></tr></tbody></table></div></div><p>When receiving a JMS message, Camel converts the JMS message to the following body type:</p><div class="confluenceTableSmall"><div class="table-wrap"><table class="confluenceTable"><tbody><tr><th colspan="1" rowspan="1" class="confluenceTh"><p>JMS Message</p></th><th colspan="1" rowspan="1" class="confluenceTh"><p>Body Type</p></th></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>javax.jms.TextMessage</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>String</code></p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>javax.jms.BytesMessage</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>byte[]</code></p> </td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>javax.jms.MapMessage</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Map<String, Object></code></p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>javax.jms.ObjectMessage</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>Object</code></p></td></tr></tbody></table></div></div><h4 id="JMS-Disablingauto-mappingofJMSmessages">Disabling auto-mapping of JMS messages</h4><p>You can use the <code>mapJmsMessage</code> option to disable the auto-mapping above. If disabled, Camel will not try to map the received JMS message, but instead uses it directly as the payload. This allows you to avoid the overhead of mapping and let Camel just pass through the JMS message. For instance, it even allows you to route <code>javax.jms.ObjectMessage</code> JMS messages with classes you do <strong>not</strong> have on the classpath.</p><h4 id="JMS-UsingacustomM essageConverter">Using a custom MessageConverter</h4><p>You can use the <code>messageConverter</code> option to do the mapping yourself in a Spring <code>org.springframework.jms.support.converter.MessageConverter</code> class.</p><p>For example, in the route below we use a custom message converter when sending a message to the JMS order queue:</p><div class="code panel pdl" style="border-width: 1px;"><div class="codeContent panelContent pdl">
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