    001    // Copyright 2011 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
    015    package org.apache.tapestry5.internal.jpa;
    016
    017    import org.apache.tapestry5.jpa.EntityManagerManager;
    018    import org.apache.tapestry5.jpa.annotations.CommitAfter;
    019    import org.apache.tapestry5.model.MutableComponentModel;
    020    import org.apache.tapestry5.plastic.MethodAdvice;
    021    import org.apache.tapestry5.plastic.PlasticClass;
    022    import org.apache.tapestry5.plastic.PlasticMethod;
    023    import org.apache.tapestry5.services.transform.ComponentClassTransformWorker2;
    024    import org.apache.tapestry5.services.transform.TransformationSupport;
    025
    026    import javax.persistence.PersistenceContext;
    027
    028    public 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, null);
    040        }
    041
    042        public void transform(PlasticClass plasticClass, TransformationSupport support, MutableComponentModel model)
    043        {
    044            for (final PlasticMethod method : plasticClass
    045                    .getMethodsWithAnnotation(CommitAfter.class))
    046            {
    047                PersistenceContext annotation = method.getAnnotation(PersistenceContext.class);
    048
    049                MethodAdvice advice = annotation == null ? shared : new CommitAfterMethodAdvice(manager, annotation);
    050
    051                method.addAdvice(advice);
    052            }
    053        }
    054    }