| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.openjpa.ee; |
| |
| import java.lang.reflect.Method; |
| import javax.transaction.TransactionManager; |
| |
| import org.apache.openjpa.conf.OpenJPAConfiguration; |
| import org.apache.openjpa.lib.conf.Configurable; |
| import org.apache.openjpa.lib.conf.Configuration; |
| |
| /** |
| * Implementation of the {@link ManagedRuntime} interface that uses |
| * a static method call to find the TransactionManager. |
| * For example, to configure it to use IBM Websphere's TransactionManager, |
| * use the method:<br /> |
| * <code>com.ibm.ejs.jts.jta.JTSXA.getTransactionManager</code> |
| * |
| * @author Marc Prud'hommeaux |
| */ |
| public class InvocationManagedRuntime extends AbstractManagedRuntime |
| implements ManagedRuntime, Configurable { |
| |
| private String _methodName = null; |
| private String _clazz = null; |
| private transient Method _method = null; |
| private OpenJPAConfiguration _conf = null; |
| |
| /** |
| * Return the method to invoke to get the {@link TransactionManager}. |
| */ |
| public String getTransactionManagerMethod() { |
| return _methodName; |
| } |
| |
| /** |
| * Set the method to invoke to get the {@link TransactionManager}. |
| * E.g.: com.ibm.ejs.jts.jta.JTSXA.getTransactionManager |
| */ |
| public void setTransactionManagerMethod(String methodName) { |
| _clazz = methodName.substring(0, methodName.lastIndexOf('.')); |
| _methodName = methodName.substring(methodName.lastIndexOf('.') + 1); |
| _method = null; |
| } |
| |
| public TransactionManager getTransactionManager() |
| throws Exception { |
| if (_method == null) { |
| ClassLoader loader = _conf.getClassResolverInstance(). |
| getClassLoader(getClass(), null); |
| _method = Class.forName(_clazz, true, loader) |
| .getMethod(_methodName, null); |
| } |
| return (TransactionManager) _method.invoke(null, null); |
| } |
| |
| public void setConfiguration(Configuration conf) { |
| _conf = (OpenJPAConfiguration) conf; |
| } |
| |
| public void startConfiguration() { |
| } |
| |
| public void endConfiguration() { |
| } |
| |
| public void setRollbackOnly(Throwable cause) |
| throws Exception { |
| // there is no generic support for setting the rollback cause |
| getTransactionManager().getTransaction().setRollbackOnly(); |
| } |
| |
| public Throwable getRollbackCause() |
| throws Exception { |
| // there is no generic support for setting the rollback cause |
| return null; |
| } |
| } |