package org.apache.ojb.broker.transaction.tm;

 /* Copyright 2003-2005 The Apache Software Foundation

  *

  * Licensed 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.

  */

 import org.apache.ojb.broker.util.factory.ConfigurableFactory;

 import org.apache.ojb.broker.util.logging.Logger;

 import org.apache.ojb.broker.util.logging.LoggerFactory;

 import org.apache.ojb.broker.transaction.tm.TransactionManagerFactory;

 public class TransactionManagerFactoryFactory

 {

     private static Logger log = LoggerFactory.getLogger(TransactionManagerFactoryFactory.class);

     private static TransactionManagerFactory tmInstance;

     static

     {

         try

         {

             tmInstance = new TMFactoryFactory().createTransactionManagerFactory();

         }

         catch (Exception e)

         {

             log.error("Instantiation of TransactionManagerFactory failed", e);

         }

     }

     public synchronized static TransactionManagerFactory instance()

     {

         return tmInstance;

     }

     public static class TMFactoryFactory extends ConfigurableFactory

     {

         protected String getConfigurationKey()

         {

             return "JTATransactionManagerClass";

         }

         protected TransactionManagerFactory createTransactionManagerFactory()

         {

             return (TransactionManagerFactory) this.createNewInstance();

         }

     }

 }