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Configuring TransactionManager
Since Camel 2.3 the JpaComponent
will auto lookup the TransactionManager
from the Registry. If Camel won't find any TransactionManager
instance registered, it will also look up for the TransactionTemplate
and try to extract TransactionManager
from it.
If none TransactionTemplate
is available in the registry, Its strongly advised to configure the TransactionManager
instance used by the JPA component. If failed to do so each JpaEndpoint
will auto create their own instance of TransactionManager
which most often is not what you want.what you want.
If more than single instance of the TransactionManager
is found, Camel will log a WARN. In such cases you might want to instantiate and explicitly configure For example, you can instantiate a JPA component that references the myTransactionManager
transaction manager, as follows:
Code Block | ||||
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<bean id="jpa" class="org.apache.camel.component.jpa.JpaComponent"> <property name="entityManagerFactory" ref="myEMFactory"/> <property name="transactionManager" ref="myTransactionManager"/> </bean> |
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Using a consumer with a named query
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