org.eiichiro.gig.appengine

Class AppEngineTransactionalInterceptor

java.lang.Object

org.eiichiro.gig.appengine.AppEngineTransactionalInterceptor

@Transactional
@Interceptor
public class AppEngineTransactionalInterceptor
extends Object

AppEngineTransactionalInterceptor is a Gig interceptor component to intercept transactional method (@Transactional annotated component method) and to control the transaction commitment of Acid House AppEngineDatastoreSession.

Author:

Eiichiro Uchiumi

Constructor Summary

Constructors

Constructor and Description
AppEngineTransactionalInterceptor()

Method Summary

Methods

Modifier and Type	Method and Description
Object	transact(org.eiichiro.reverb.reflection.Invocation<?> invocation) Controls Acid House AppEngineDatastoreSession's transaction commitment.

Methods inherited from class java.lang.Object

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

Constructor Detail

AppEngineTransactionalInterceptor

public AppEngineTransactionalInterceptor()

Method Detail

transact

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

Controls Acid House AppEngineDatastoreSession's transaction commitment. First, this method begins a transaction on AppEngineDatastoreSession. 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.