嵌入式事务管理

Question

public class A {
   @Transactional(propagation = Propagation.REQUIRED, readOnly = true, value="transactionManager")
   public void methodA() {
      B.methodB();
   }
}

@Transactional(propagation = Propagation.REQUIRED, readOnly = false, rollbackFor=Exception.class,  noRollbackFor = MyCustomCheckedException.class, value="transactionManager")
public class B {
   @Transactional(propagation = Propagation.REQUIRED, readOnly = true, value="transactionManager")
   public void methodB() throws MyCustomCheckedException {
       try {
       } catch ( AnotherException ex ) {
          throw new MyCustomCheckedException(ex.getCode(), ex.getMessage(), ex);
       }
   }
}

有什么想法吗？

Answer 1

基本上，事务从methoda()调用开始，调用层次结构中的所有@transactional都被忽略。只有当内部@transactional中的一个具有propagation.requires_new时，事务才会更改，后者创建新事务而不考虑现有事务。

事务开始的methoda()没有norollbackfor，因此会看到错误。

来自javadoc上的propagation.required

/**
 * Support a current transaction, create a new one if none exists.
 * Analogous to EJB transaction attribute of the same name.
 * <p>This is the default setting of a transaction annotation.
 */
REQUIRED(TransactionDefinition.PROPAGATION_REQUIRED)