    001// Copyright 2011, 2014 The Apache Software Foundation
    002//
    003// Licensed under the Apache License, Version 2.0 (the "License");
    004// you may not use this file except in compliance with the License.
    005// You may obtain a copy of the License at
    006//
    007// http://www.apache.org/licenses/LICENSE-2.0
    008//
    009// Unless required by applicable law or agreed to in writing, software
    010// distributed under the License is distributed on an "AS IS" BASIS,
    011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    012// See the License for the specific language governing permissions and
    013// limitations under the License.
    014
    015package org.apache.tapestry5.internal.jpa;
    016
    017import org.apache.tapestry5.jpa.EntityManagerManager;
    018import org.apache.tapestry5.jpa.annotations.CommitAfter;
    019import org.apache.tapestry5.model.MutableComponentModel;
    020import org.apache.tapestry5.plastic.MethodAdvice;
    021import org.apache.tapestry5.plastic.PlasticClass;
    022import org.apache.tapestry5.plastic.PlasticMethod;
    023import org.apache.tapestry5.services.transform.ComponentClassTransformWorker2;
    024import org.apache.tapestry5.services.transform.TransformationSupport;
    025
    026import javax.persistence.PersistenceContext;
    027
    028public class CommitAfterWorker implements ComponentClassTransformWorker2
    029{
    030
    031    private final MethodAdvice shared;
    032
    033    private final EntityManagerManager manager;
    034
    035    public CommitAfterWorker(EntityManagerManager manager)
    036    {
    037        this.manager = manager;
    038
    039        shared = new CommitAfterMethodAdvice(manager);
    040    }
    041
    042    @Override
    043    public void transform(PlasticClass plasticClass, TransformationSupport support, MutableComponentModel model)
    044    {
    045        for (final PlasticMethod method : plasticClass
    046                .getMethodsWithAnnotation(CommitAfter.class))
    047        {
    048            PersistenceContext annotation = method.getAnnotation(PersistenceContext.class);
    049
    050            MethodAdvice advice = annotation == null ? shared : new CommitAfterMethodAdvice(manager);
    051
    052            method.addAdvice(advice);
    053        }
    054    }
    055}