001 /** 002 * 003 * Copyright 2005 LogicBlaze, Inc. http://www.logicblaze.com 004 * 005 * Licensed under the Apache License, Version 2.0 (the "License"); 006 * you may not use this file except in compliance with the License. 007 * You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 * 017 **/ 018 package org.jencks.factory; 019 020 import java.util.Map; 021 022 import org.apache.geronimo.transaction.context.GeronimoTransactionManager; 023 import org.apache.geronimo.transaction.context.TransactionContextManager; 024 import org.springframework.beans.factory.FactoryBean; 025 import org.springframework.beans.factory.InitializingBean; 026 import org.springframework.context.ApplicationContext; 027 import org.springframework.context.ApplicationContextAware; 028 029 /** 030 * This FactoryBean creates and configures the Geronimo implementation 031 * of the UserTransaction and TransactionManager interfaces. 032 * <p/> 033 * This factory is based on the Geronimo Transaction Context Manager. 034 * 035 * @version $Revision: 1.1 $ 036 * @author <a href="mailto:gnt@codehaus.org">Guillaume Nodet</a> 037 * @see org.apache.geronimo.transaction.context.GeronimoTransactionManager 038 */ 039 public class GeronimoTransactionManagerFactoryBean implements FactoryBean, InitializingBean, ApplicationContextAware { 040 041 private GeronimoTransactionManager transactionManager; 042 private ApplicationContext applicationContext; 043 private TransactionContextManager transactionContextManager; 044 045 public Object getObject() throws Exception { 046 return transactionManager; 047 } 048 049 public Class getObjectType() { 050 return GeronimoTransactionManager.class; 051 } 052 053 public boolean isSingleton() { 054 return true; 055 } 056 057 public void afterPropertiesSet() throws Exception { 058 transactionManager = new GeronimoTransactionManager(getTransactionContextManager()); 059 } 060 061 public void setApplicationContext(ApplicationContext applicationContext) { 062 this.applicationContext = applicationContext; 063 } 064 065 public TransactionContextManager getTransactionContextManager() { 066 if (transactionContextManager == null) { 067 Map map = applicationContext.getBeansOfType(TransactionContextManager.class); 068 if (map.size() == 1) { 069 transactionContextManager = (TransactionContextManager) map.values().iterator().next(); 070 } else { 071 throw new IllegalStateException("no TransactionContextManager is registered"); 072 } 073 } 074 return transactionContextManager; 075 } 076 077 public void setTransactionContextManager(TransactionContextManager transactionContextManager) { 078 this.transactionContextManager = transactionContextManager; 079 } 080 081 }