THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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When a route is marked as transacted using transacted Camel will automatic use the TransactionErrorHandler as Error Handler. It supports basically the same feature set as the DefaultErrorHandler, so you can for instance use Exception Clause as well. |
Using multiple routes with different propagation behaviors
Available as of Camel 2.2
Suppose you want to route a message through two routes and by which the 2nd route should run in its own transaction. How do you do that? You use propagation behaviors for that where you configure it as follows:
- The first route use
PROPAGATION_REQUIRED - The second route use
PROPAGATION_REQUIRES_NEW
This is configured in the Spring XML file:
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{snippet:id=e1|lang=xml|url=camel/trunk/components/camel-spring/src/test/resources/org/apache/camel/spring/interceptor/MixedTransactionPropagationTest.xml} |
Then in the routes you use transacted DSL to indicate which of these two propagations it uses.
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{snippet:id=e1|lang=java|url=camel/trunk/components/camel-spring/src/test/java/org/apache/camel/spring/interceptor/MixedTransactionPropagationTest.java} |
Notice how we have configured the onException in the 2nd route to indicate in case of any exceptions we should handle it and just rollback this transaction.
This is done using the markRollbackOnlyLast which tells Camel to only do it for the current transaction and not globally.
See Also
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