how can I remove property duplication?

[ctassoni]

I would like to have default aop setting for all my beans, putting the properties in only one place, like this:

	<bean id="baseProxy"  abstract="true" 
			class="org.springframework.beans.factory.FactoryBean">
		<property name="frozen"><value>$&#123;spring.aop.advice.frozen&#125;</value></property>
		<property name="optimize"><value>$&#123;spring.aop.doCGLibProxies&#125;</value></property>	
		<property name="opaque"><value>$&#123;spring.aop.opaqueProxies&#125;</value></property>	
	</bean>		

	<bean id="baseTransactionProxy"  abstract="true" 
			parent="baseProxy">
		<property name="transactionManager"><ref bean="transactionManager"/></property>
	</bean>	

	<bean id="baseNonTransactionalProxy"  abstract="true" 	
		parent="baseProxy">
        <!--Include some properties that are specific to beans
            that do not themselves control transactions.
         -->   
	</bean>

But I get an error saying '"org.springframework.beans.FatalBeanException: Class [org.springframework.beans.factory.FactoryBean] cannot be instantiated: it is an interface.'

So I have to settle for putting the properties in two places, like this:

	<bean id="baseTransactionProxy"  abstract="true" 
			class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
		<property name="transactionManager"><ref bean="transactionManager"/></property>
		<property name="frozen"><value>$&#123;spring.aop.advice.frozen&#125;</value></property>
		<property name="optimize"><value>$&#123;spring.aop.doCGLibProxies&#125;</value></property>	
		<property name="opaque"><value>$&#123;spring.aop.opaqueProxies&#125;</value></property>	
	</bean>	

	<bean id="baseNonTransactionalProxy"  abstract="true" 	
		class="org.springframework.aop.framework.ProxyFactoryBean">
		<property name="frozen"><value>$&#123;spring.aop.advice.frozen&#125;</value></property>
		<property name="optimize"><value>$&#123;spring.aop.doCGLibProxies&#125;</value></property>	
		<property name="opaque"><value>$&#123;spring.aop.opaqueProxies&#125;</value></property>	
	</bean>

Is there some way I can put those properties in just one place?

[katentim]

Shouldn't

<bean id="baseTransactionProxy"  abstract="true"
         parent="baseProxy">
      <property name="transactionManager"><ref bean="transactionManager"/></property>
   </bean>

be

<bean id="baseTransactionProxy"  abstract="true"
         parent="baseProxy" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
      <property name="transactionManager"><ref bean="transactionManager"/></property>
   </bean>

[ctassoni]

Yep. Sorry about that. And of course the non-transactional bean should be class="org.springframework.aop.framework.ProxyFact oryBean">.

I'm away from my Spring setup at the moment, but I think that correcton won't completely solve the problem. That is, I'll still be informed that "org.springframework.beans.FatalBeanException: Class [org.springframework.beans.factory.FactoryBean] cannot be instantiated: it is an interface.'

I'll check that when I get in to work on Monday.

[ctassoni]

I was wrong. The correct configuration removes all duplication. Thanks.