Concise proxies, declarative transactions and inheritance

[de_tom]

Hi everybody!

I've looked at chapter 6.7 Concise proxy definitions and worked the suggestions into my config - works like a charm with a lot less xml!

Is possible to do the following: I have got a template (an abstract bean -> baseManager) that is extened by actual managers (e.g. entityTypeManager). Now I want to inherit transactionAttributes from my baseManager and declare some additional methods as well. But if I run the example above, only the the "new" methods will be executed within a transaction, which makes sense actually, since I am redefining the transactionAttributes.

<bean id="baseManager" abstract="true"
		class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
		<property name="transactionManager" ref="transactionManager"/>
		<property name="transactionAttributes">
			<props>
				<prop key="save*">PROPAGATION_REQUIRED</prop>
				<prop key="delete*">PROPAGATION_REQUIRED</prop>
				...
			</props>
		</property>
		...
	</bean>

<bean id="entityTypeManager" parent="baseManager">
		<property name="target">
			...
		</property>
		<!-- additional methods that require tx support -->
		<property name="transactionAttributes">
			<props>
				<prop key="getById*">PROPAGATION_REQUIRED</prop>
				<prop key="getByName">PROPAGATION_REQUIRED</prop>
			</props>
		</property>
	</bean>

Since this seems to be wrong, I wonder whether there is another approach to solve this (inherit tx-methods and define additional ones) without rewriting the inherited definitions.

Regards,
Tom

[wpoitras]

Spring 2.0 supports the concept of collection merging for just such an occassion.

[de_tom]

Thanks for your reply - that's exactly what I was looking for. Is there any chance that this will be backported into the 1.2 branch?

Regards,
Tom

BTW: Is there a migration guide available concerning the transition from Spring 1.2 to 2.0?

[irbouho]

2.0 is a drop in replacement for Spring 1.X.

HTH.