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<bean id="baseTransactionProxy"
    	class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean"
    	abstract="true">
    	<property name="transactionManager" ref="transactionManager" />
    	<property name="transactionAttributes">
    		<props>
    			<prop key="add*">PROPAGATION_REQUIRED</prop>
    			<prop key="save*">PROPAGATION_REQUIRED</prop>
    			<prop key="update*">PROPAGATION_REQUIRED</prop>
    			<prop key="delete*">PROPAGATION_REQUIRED</prop>
    			<prop key="*">PROPAGATION_REQUIRED, ISOLATION_READ_COMMITTED, readOnly</prop>
    		</props>
    	</property>
    	<property name="preInterceptors">
			<list>
            	<ref bean="hibernateInterceptor"/>
            </list>
    	</property>
    </bean>