/*

  * Copyright 2007-2008 The Kuali Foundation

  * 

  * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php

  * 

  * 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.kuali.rice.ken.util;

 import java.util.concurrent.Callable;

 import org.springframework.transaction.TransactionStatus;

 import org.springframework.transaction.support.TransactionCallback;

 import org.springframework.transaction.support.TransactionTemplate;

 /**

  * A Callable that performs work within a transaction and returns the

  * TransactionCallback's result

  * @author Kuali Rice Team (rice.collab@kuali.org)

  */

 public class TransactionedCallable implements Callable, TransactionCallback {

     private TransactionTemplate txTemplate;

     private TransactionCallback callback;

     /**

      * Constructs a TransactionedCallable.java.

      * @param txTemplate

      */

     public TransactionedCallable(TransactionTemplate txTemplate) {

         this.txTemplate = txTemplate;

     }

     /**

      * Constructs a TransactionedCallable.java.

      * @param txTemplate

      * @param callback

      */

     public TransactionedCallable(TransactionTemplate txTemplate, TransactionCallback callback) {

         this.txTemplate = txTemplate;

         this.callback = callback;

     }

     /**

      * @see java.util.concurrent.Callable#call()

      */

     public Object call() throws Exception {

         TransactionCallback cb;

         if (callback != null) {

             cb = callback;

         } else {

             cb = this;

         }

         return txTemplate.execute(cb);

     }

     /**

      * @see org.springframework.transaction.support.TransactionCallback#doInTransaction(org.springframework.transaction.TransactionStatus)

      */

     public Object doInTransaction(TransactionStatus txStatus) {

         return null;

     }

 }