Spring Transaction using Spring AOP

[Jayaraj Jaganathan]

i have configured Spring Transaction using Spring AOP

please find the code below

<bean id="common"
		class="org.springframework.aop.framework.autoproxy.BeanNameAutoProxyCreator">
		<property name="beanNames">
			<value>*DAO</value>
		</property>
		<property name="interceptorNames">
			<list>
				<value>transactionInterceptor</value>
			</list>
		</property>
	</bean>
	
	<bean id="txManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
		<property name="sessionFactory" ref="sessionFactory" />
	</bean>		

	<bean id="transactionInterceptor"
		class="org.springframework.transaction.interceptor.TransactionInterceptor">
		<property name="transactionManager" ref="txManager" />
		<property name="transactionAttributeSource">
			<value>
				com.example.dao.department.DepartmentDAOImpl.select*=PROPAGATION_REQUIRED
				com.example.dao.employee.EmployeeDAOImpl.select*=PROPAGATION_REQUIRED,readOnly
				com.example.dao.employee.EmployeeDAOImpl.insert*=PROPAGATION_REQUIRED
			</value>
		</property>
	</bean>   

i don't like to configure the below code for every new dao class .
is there any solution ? please help me . thanks in advance..

  <property name="transactionAttributeSource">
			<value>
				com.example.dao.department.DepartmentDAOImpl.select*=PROPAGATION_REQUIRED
				com.example.dao.employee.EmployeeDAOImpl.select*=PROPAGATION_REQUIRED,readOnly
				com.example.dao.employee.EmployeeDAOImpl.insert*=PROPAGATION_REQUIRED
			</value>
		</property>  

[David Newton]

Define the methods being wrapped at a higher level, like the package?

[Jayaraj Jaganathan]

David Newton wrote:Define the methods being wrapped at a higher level, like the package?

do you say configure like as below ?

   <property name="transactionAttributeSource">  
             <value>  
                 com.example.dao.*.*.select*=PROPAGATION_REQUIRED,readOnly  
             </value>  
         </property>   

but it's not working :(

[Vivek K Singh]

does it give any exception while loading or simply the interceptor dosent run ?

[Jayaraj Jaganathan]

Vivek K Singh wrote:does it give any exception while loading or simply the interceptor dosent run ?

it throws a exception that class not found

[Vivek K Singh]

Try putting the interface to all the DAOImpl classes in the source property like:

  <bean id="transactionInterceptor"  
        class="org.springframework.transaction.interceptor.TransactionInterceptor">   
        <property name="transactionManager" ref="txManager" />   
        <property name="transactionAttributeSource">   
            <value>   
                [b]com.example.dao.InterfaceDAO.insert*=PROPAGATION_REQUIRED
                com.example.dao.InterfaceDAO.select*=PROPAGATION_REQUIRED,readOnly[/b]
            </value>   
        </property>   
    </bean>     

If you are using java 1.5 / Spring 2.5 then you can annotate the class/methods with @Transactional

@Transactional
public class DepartmentDAOImpl{
  @Transactional(readOnly=false)
  void insert**(...);
  @Transactional(readOnly=true)
  void select**(...);

} 

and define the bean as:

  <property name="transactionAttributeSource">
       <bean class="org.springframework.transaction.annotation.AnnotationTransactionAttributeSource"/>
  </property>

The AnnotationTransactionAttributeSource works with spring 2.0 as well, You will have to check the documentation for that.