Declarative transaction demarcation

xml 代码

<beans>
     ...

   <bean id="myTxManager" class="org.springframework.orm.hibernate.HibernateTransactionManager">
     <property name="sessionFactory" ref="mySessionFactory"/>
   </bean>

   <bean id="myTxInterceptor"
     class="org.springframework.transaction.interceptor.TransactionInterceptor">
     <property name="transactionManager" ref="myTxManager"/>
     <property name="transactionAttributeSource">
       <value>
         product.ProductService.increasePrice*=PROPAGATION_REQUIRED
         product.ProductService.someOtherBusinessMethod=PROPAGATION_MANDATORY
       </value>
     </property>
   </bean>

   <bean id="myProductServiceTarget" class="product.ProductServiceImpl">
     <property name="productDao" ref="myProductDao"/>
   </bean>

   <bean id="myProductService" class="org.springframework.aop.framework.ProxyFactoryBean">
     <property name="proxyInterfaces">
       <value>product.ProductService</value>
     </property>
     <property name="interceptorNames">
       <list>
         <value>myTxInterceptor</value>
         <value>myProductServiceTarget</value>
       </list>
     </property>
   </bean>

</beans>

 

java代码

public class ProductServiceImpl implements ProductService {

     private ProductDao productDao;

     public void setProductDao(ProductDao productDao) {
         this.productDao = productDao;
     }

     public void increasePriceOfAllProductsInCategory(final String category) {
         List productsToChange = this.productDAO.loadProductsByCategory(category);
         ...
     }

     ...
}