2 * Copyright 2005-2010 the original author or authors.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
16 package org.wamblee.test.transactions;
18 import java.util.ArrayList;
19 import java.util.List;
21 import javax.transaction.UserTransaction;
24 * Simple transaction manager provides a simple mechanism to manage transaction
25 * in test code through the {@link UserTransaction} object.
27 * @author Erik Brakkee
30 public class SimpleTransactionManager {
32 private UserTransactionFactory factory;
33 private ThreadLocal<UserTransaction> current;
34 private UserTransactionCallback callback;
35 private List<TransactionResource> resources;
38 * Constructs the transaction manager.
41 * Factory to create transactions with.
43 public SimpleTransactionManager(UserTransactionFactory aFactory) {
45 current = new ThreadLocal<UserTransaction>();
46 callback = new UserTransactionCallback() {
49 public void transactionFinished() {
53 resources = new ArrayList<TransactionResource>();
57 * Adds a resource to manage. Adding resources is no longer allowed after
58 * the first transaction has started.
63 public void addResource(TransactionResource aResource) {
64 resources.add(aResource);
68 * Gets a transaction associated with the current thread.
70 * @return User transaction.
72 public UserTransaction getTransaction() {
73 UserTransaction transaction = current.get();
74 if (transaction == null) {
75 transaction = factory.create(callback, resources);
76 current.set(transaction);