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: 1.2 $ 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 if (transactionManager == null) { 047 transactionManager = new GeronimoTransactionManager(getTransactionContextManager()); 048 } 049 return transactionManager; 050 } 051 052 public Class getObjectType() { 053 return GeronimoTransactionManager.class; 054 } 055 056 public boolean isSingleton() { 057 return true; 058 } 059 060 public void afterPropertiesSet() throws Exception { 061 } 062 063 public void setApplicationContext(ApplicationContext applicationContext) { 064 this.applicationContext = applicationContext; 065 } 066 067 public TransactionContextManager getTransactionContextManager() { 068 if (transactionContextManager == null) { 069 Map map = applicationContext.getBeansOfType(TransactionContextManager.class); 070 if (map.size() == 1) { 071 transactionContextManager = (TransactionContextManager) map.values().iterator().next(); 072 } else { 073 throw new IllegalStateException("no TransactionContextManager is registered"); 074 } 075 } 076 return transactionContextManager; 077 } 078 079 public void setTransactionContextManager(TransactionContextManager transactionContextManager) { 080 this.transactionContextManager = transactionContextManager; 081 } 082 083 }