Custom TransactionAnnotationParser without AspectJ

[Ciaccia]

Hi all, I have a Spring + JPA setup that works fine. The transactional services use annotation metadata as following:

@Service
public class MyServiceImpl implements MyService {

    @Override
    @Transactional
    public void myMethod() {
        // Implementation here
    }
}

and the applicationContext.xml contains the <tx:annotation-driven /> namespace tag.

Instead of the standard setup provided by <tx:annotation-driven />, I would like to customize the parser that reads the transactional metadata (I want to add extra transactional metadata to the methods to be used in my dialect).

Therefore I removed the <tx:annotation-driven /> tag from the applicationContext.xml and I re-defined the beans that are usually added by <tx:annotation-driven /> as following:

<aop:config />

<bean name="txInterceptor" class="org.springframework.transaction.interceptor.TransactionInterceptor">
	<property name="transactionManagerBeanName" value="transactionManager" />
	<property name="transactionAttributeSource">
			<bean class="org.springframework.transaction.annotation.AnnotationTransactionAttributeSource">
			<constructor-arg index="0">
				<bean class="com.example.MyAnnotationParser" />
			</constructor-arg>
		</bean>
	</property>
</bean>

<bean id="org.springframework.transaction.config.internalTransactionAdvisor"
	class="org.springframework.transaction.interceptor.BeanFactoryTransactionAttributeSourceAdvisor">
	<property name="transactionAttributeSource">
			<bean class="org.springframework.transaction.annotation.AnnotationTransactionAttributeSource">
			<constructor-arg index="0">
				<bean class="com.example.MyAnnotationParser" />
			</constructor-arg>
		</bean>
	</property>
	<property name="adviceBeanName" value="txInterceptor"/>
</bean>

Everytime I start the server Spring complains about missing AspectJ... How could I reproduce the behavior of <tx:annotation-driven /> defining explicitly all the needed beans?

With <tx:annotation-driven /> everything works fine without AspectJ, I would like to have the same, but defined in my applicationContext.xml rather than using <tx:annotation-driven />.

Does anybody have a clue?

[Ciaccia]

Hi all,
I found a way to fix this. The <tx:annotation-driven /> tag defines an "autoproxy" before instantiating the transaction interceptors. This can be achieved in XML by defining a bean "org.springframework.aop.framework.autoproxy.Defau ltAdvisorAutoProxyCreator" in the BeanFactory before defining the transaction interceptors. The following code duplicates the logic done in <tx:annotation-driven />, but replacing the default TransactionAnnotationParser with a custom one.

<bean class="org.springframework.aop.framework.autoproxy.DefaultAdvisorAutoProxyCreator"/>

<bean name="org.springframework.transaction.annotation.AnnotationTransactionAttributeSource#0"
	class="org.springframework.transaction.annotation.AnnotationTransactionAttributeSource">
	<constructor-arg index="0">
		<bean class="com.example.MyTransactionAnnotationParser" />
	</constructor-arg>
</bean>

<bean name="org.springframework.transaction.interceptor.TransactionInterceptor#0"
	class="org.springframework.transaction.interceptor.TransactionInterceptor">
	<property name="transactionManagerBeanName" value="transactionManager" />
	<property name="transactionAttributeSource" ref="org.springframework.transaction.annotation.AnnotationTransactionAttributeSource#0" />
</bean>

<bean id="org.springframework.transaction.config.internalTransactionAdvisor"
	class="org.springframework.transaction.interceptor.BeanFactoryTransactionAttributeSourceAdvisor">
	<property name="transactionAttributeSource" ref="org.springframework.transaction.annotation.AnnotationTransactionAttributeSource#0" />
	<property name="adviceBeanName" value="org.springframework.transaction.interceptor.TransactionInterceptor#0"/>
</bean>

I hope this can help somebody in the future having the same problem...