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Glassfish example source code file (TransactionAttributeHandler.java)
The Glassfish TransactionAttributeHandler.java source code/* * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. * * Copyright (c) 1997-2010 Oracle and/or its affiliates. All rights reserved. * * The contents of this file are subject to the terms of either the GNU * General Public License Version 2 only ("GPL") or the Common Development * and Distribution License("CDDL") (collectively, the "License"). You * may not use this file except in compliance with the License. You can * obtain a copy of the License at * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html * or packager/legal/LICENSE.txt. See the License for the specific * language governing permissions and limitations under the License. * * When distributing the software, include this License Header Notice in each * file and include the License file at packager/legal/LICENSE.txt. * * GPL Classpath Exception: * Oracle designates this particular file as subject to the "Classpath" * exception as provided by Oracle in the GPL Version 2 section of the License * file that accompanied this code. * * Modifications: * If applicable, add the following below the License Header, with the fields * enclosed by brackets [] replaced by your own identifying information: * "Portions Copyright [year] [name of copyright owner]" * * Contributor(s): * If you wish your version of this file to be governed by only the CDDL or * only the GPL Version 2, indicate your decision by adding "[Contributor] * elects to include this software in this distribution under the [CDDL or GPL * Version 2] license." If you don't indicate a single choice of license, a * recipient has the option to distribute your version of this file under * either the CDDL, the GPL Version 2 or to extend the choice of license to * its licensees as provided above. However, if you add GPL Version 2 code * and therefore, elected the GPL Version 2 license, then the option applies * only if the new code is made subject to such option by the copyright * holder. */ package org.glassfish.ejb.deployment.annotation.handlers; import java.lang.annotation.Annotation; import java.lang.annotation.ElementType; import java.lang.reflect.AnnotatedElement; import java.lang.reflect.Method; import java.util.Set; import javax.ejb.*; import com.sun.enterprise.deployment.util.TypeUtil; import com.sun.enterprise.deployment.ContainerTransaction; import com.sun.enterprise.deployment.EjbDescriptor; import com.sun.enterprise.deployment.MethodDescriptor; import org.glassfish.apf.AnnotationInfo; import org.glassfish.apf.AnnotatedElementHandler; import org.glassfish.apf.AnnotationProcessorException; import org.glassfish.apf.HandlerProcessingResult; import com.sun.enterprise.deployment.annotation.context.EjbContext; import org.glassfish.ejb.deployment.annotation.handlers.AbstractAttributeHandler; import com.sun.enterprise.deployment.annotation.handlers.PostProcessor; import org.jvnet.hk2.annotations.Service; /** * This handler is responsible for handling the javax.ejb.TransactionAttribute. * * @author Shing Wai Chan */ @Service public class TransactionAttributeHandler extends AbstractAttributeHandler implements PostProcessor { public TransactionAttributeHandler() { } /** * @return the annoation type this annotation handler is handling */ public Class<? extends Annotation> getAnnotationType() { return TransactionAttribute.class; } protected HandlerProcessingResult processAnnotation(AnnotationInfo ainfo, EjbContext[] ejbContexts) throws AnnotationProcessorException { TransactionAttribute taAn = (TransactionAttribute) ainfo.getAnnotation(); for (EjbContext ejbContext : ejbContexts) { EjbDescriptor ejbDesc = ejbContext.getDescriptor(); ContainerTransaction containerTransaction = getContainerTransaction(taAn.value()); if (ElementType.TYPE.equals(ainfo.getElementType())) { ejbContext.addPostProcessInfo(ainfo, this); } else { Method annMethod = (Method) ainfo.getAnnotatedElement(); Set txBusMethods = ejbDesc.getTxBusinessMethodDescriptors(); for (Object next : txBusMethods) { MethodDescriptor nextDesc = (MethodDescriptor) next; Method m = nextDesc.getMethod(ejbDesc); if( TypeUtil.sameMethodSignature(m, annMethod) && ejbDesc.getContainerTransactionFor(nextDesc) == null ) { // override by xml ejbDesc.setContainerTransactionFor (nextDesc, containerTransaction); } } } } return getDefaultProcessedResult(); } private ContainerTransaction getContainerTransaction( TransactionAttributeType taType) { switch(taType) { case MANDATORY: return new ContainerTransaction( ContainerTransaction.MANDATORY, ContainerTransaction.MANDATORY); case REQUIRED: return new ContainerTransaction( ContainerTransaction.REQUIRED, ContainerTransaction.REQUIRED); case REQUIRES_NEW: return new ContainerTransaction( ContainerTransaction.REQUIRES_NEW, ContainerTransaction.REQUIRES_NEW); case SUPPORTS: return new ContainerTransaction( ContainerTransaction.SUPPORTS, ContainerTransaction.SUPPORTS); case NOT_SUPPORTED: return new ContainerTransaction( ContainerTransaction.NOT_SUPPORTED, ContainerTransaction.NOT_SUPPORTED); default: // NEVER return new ContainerTransaction( ContainerTransaction.NEVER, ContainerTransaction.NEVER); } } /** * @return an array of annotation types this annotation handler would * require to be processed (if present) before it processes it's own * annotation type. */ public Class<? extends Annotation>[] getTypeDependencies() { return new Class[] { MessageDriven.class, Stateful.class, Stateless.class, Singleton.class, Timeout.class, TransactionManagement.class}; } protected boolean supportTypeInheritance() { return true; } /** * Set the default value (from class type annotation) on all * methods that don't have a value. */ public void postProcessAnnotation(AnnotationInfo ainfo, AnnotatedElementHandler aeHandler) throws AnnotationProcessorException { EjbContext ejbContext = (EjbContext)aeHandler; EjbDescriptor ejbDesc = ejbContext.getDescriptor(); TransactionAttribute taAn = (TransactionAttribute) ainfo.getAnnotation(); ContainerTransaction containerTransaction = getContainerTransaction(taAn.value()); Class classAn = (Class)ainfo.getAnnotatedElement(); Set txBusMethods = ejbDesc.getTxBusinessMethodDescriptors(); for (Object mdObj : txBusMethods) { MethodDescriptor md = (MethodDescriptor)mdObj; // override by xml if (classAn.equals(ejbContext.getDeclaringClass(md)) && ejbDesc.getContainerTransactionFor(md) == null) { ejbDesc.setContainerTransactionFor( md, containerTransaction); } } } } Other Glassfish examples (source code examples)Here is a short list of links related to this Glassfish TransactionAttributeHandler.java source code file: |
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