| /* |
| * 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 javax.naming.Context; |
| import javax.naming.InitialContext; |
| import javax.transaction.TransactionManager; |
| |
| /** |
| * Implementation of the {@link ManagedRuntime} interface that uses JNDI to |
| * find the TransactionManager. |
| * |
| * @author Abe White |
| */ |
| public class JNDIManagedRuntime extends AbstractManagedRuntime |
| implements ManagedRuntime { |
| |
| private String _tmLoc = "java:/TransactionManager"; |
| private TransactionManager _tm = null; |
| |
| /** |
| * Return the location of the {@link TransactionManager} in JNDI. |
| */ |
| public String getTransactionManagerName() { |
| return _tmLoc; |
| } |
| |
| /** |
| * Set the location of the {@link TransactionManager} in JNDI. |
| */ |
| public void setTransactionManagerName(String name) { |
| _tmLoc = name; |
| _tm = null; // reset the cached TM |
| } |
| |
| /** |
| * Return the cached TransactionManager instance. |
| */ |
| public TransactionManager getTransactionManager() throws Exception { |
| |
| if (_tm == null) { |
| Context ctx = new InitialContext(); |
| try { |
| _tm = (TransactionManager) ctx.lookup(_tmLoc); |
| } finally { |
| ctx.close(); |
| } |
| } |
| return _tm; |
| } |
| |
| 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; |
| } |
| } |