AOP Interceptor with Transactions

[juan110470]

Hello:

I am pretty sure this topic has already come up, but I looked around the forum and I didn't find anything specific to my issue.

Our current Spring configuration makes use of the parent attribute of the bean tag:

<bean id="inquiryService" parent="txProxyTemplate">
<property name="target">
<bean class="com.wfs.felix.services.impl.InquiryServiceI mpl">
<property name="auditTrailService" ref="auditTrailService" />
<property name="inquiryDao" ref="inquiryDao" />
<property name="registry" ref="userRegistry" />
<property name="emailService" ref="emailService" />
<property name="faxService" ref="faxService" />
<property name="conversionService" ref="conversionService" />
<property name="userRegistry" ref="userRegistry" />
</bean>
</property>
</bean>

However, for the bean referenced above, we now need to add some interceptor functionality via Spring AOP. So the new configuration below:

<!--The interceptor being used for Audit Trail -->
<bean id="auditTrailLoggerAdvice" class="com.wfs.felix.aop.interceptors.AuditTrailLo gger">
<property name="auditTrailService">
<ref bean="auditTrailService"/>
</property>
</bean>

<!--The pointcut advisor used in Audit Trail. It is based on the method name -->
<bean id="auditTrailLoggerPointcutAdvisor"
class="org.springframework.aop.support.NameMatchMe thodPointcutAdvisor">

<property name="mappedNames">
<list>
<value>save</value>
</list>
</property>
<property name="advice">
<ref bean="auditTrailLoggerAdvice"/>
</property>
</bean>

<bean id="inquiryServiceTarget" class="com.wfs.felix.services.impl.InquiryServiceI mpl">
<property name="auditTrailService" ref="auditTrailService" />
<property name="inquiryDao" ref="inquiryDao" />
<property name="registry" ref="userRegistry" />
<property name="emailService" ref="emailService" />
<property name="faxService" ref="faxService" />
<property name="conversionService" ref="conversionService" />
<property name="userRegistry" ref="userRegistry" />
</bean>

<bean id="inquiryService"
class="org.springframework.aop.framework.ProxyFact oryBean">

<!--class="org.springframework.aop.framework.ProxyFact oryBean"-->
<!--parent="txProxyTemplate"-->

<property name="proxyInterfaces">
<value>com.wfs.felix.services.InquiryService</value>
</property>

<!--The interceptor for Audit Trail-->
<property name="interceptorNames">
<list>
<value>auditTrailLoggerPointcutAdvisor</value>
</list>
</property>

<property name="target">
<ref bean="inquiryServiceTarget"/>
</property>
</bean>

As you can see, now we don't have the transaction demarcation in our bean. I know this is possible in Spring and if someone can point me in the right direction I would appreciate it. The book Spring in Action does not as far as I have seen address my issue.

Thanks in advance,

Juan A.

[katentim]

However, for the bean referenced above, we now need to add some interceptor functionality via Spring AOP

Take a look at setPostInterceptors and setPreInterceptors.

[Jörg Heinicke]

Our current Spring configuration makes use of the parent attribute of the bean tag:

<bean id="inquiryService" parent="txProxyTemplate">

How does the config of txProxyTemplate look like?

However, for the bean referenced above, we now need to add some interceptor functionality via Spring AOP. [..] As you can see, now we don't have the transaction demarcation in our bean. I know this is possible in Spring and if someone can point me in the right direction I would appreciate it.

As far as I understand your problem you need to apply the TransactionInterceptor via the ProxyFactoryBean as well. A possible configuration can then look like:

<bean id="inquiryService"
      class="org.springframework.aop.framework.ProxyFactoryBean">
  <property name="proxyInterfaces">
    <value>com.wfs.felix.services.InquiryService</value>
  </property>
  <property name="interceptorNames">
    <list>
      <value>auditTrailLoggerPointcutAdvisor</value>
      <value>txInterceptor</value>
    </list>
  </property>
  <property name="target">
    <ref bean="inquiryServiceTarget"/>
  </property>
</bean>

<bean id="txAttributes"
      class="org.springframework.transaction.interceptor.NameMatchTransactionAttributeSource">
  <property name="properties">
    <props>
      <prop key="get*">PROPAGATION_REQUIRED,readOnly,-Exception</prop>
      <prop key="..">..</prop>
    </props>
  </property>
</bean>

<bean id="txInterceptor"
      class="org.springframework.transaction.interceptor.TransactionInterceptor">
  <property name="transactionManager" ref="transactionManager"/>
  <property name="transactionAttributeSource" ref="txAttributes"/>
</bean>