org.eiichiro.gig.persistence
Class JPATransactionalInterceptor

java.lang.Object
  org.eiichiro.gig.persistence.JPATransactionalInterceptor

@Transactional
@Interceptor
public class JPATransactionalInterceptor
extends Object

JPATransactionalInterceptor is a Gig interceptor component to intercept transactional method (@Transactional annotated component method) and to control the transaction commitment of JPA (Java Persistence API) EntityManager.

Author:

Eiichiro Uchiumi

Constructor Summary

JPATransactionalInterceptor()

Method Summary

Object

transact(org.eiichiro.reverb.reflection.Invocation<?> invocation) Controls JPA EntityManager's transaction commitment.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

JPATransactionalInterceptor

public JPATransactionalInterceptor()

Method Detail

transact

@Around
public Object transact(org.eiichiro.reverb.reflection.Invocation<?> invocation)
                throws Throwable

Controls JPA EntityManager's transaction commitment. First, this method begins a transaction on EntityManager. If the transactional method invocation is succeeded, this method commits the transaction. If the transactional method throws any exception, this method rolls back the transaction and re-throws the exception.

Parameters:

invocation - The encoded method invocation of transactional method.

Returns:

The invocation result.

Throws:

Throwable - If transactional method throws any exception.