001/**
002 * Copyright 2005-2016 The Kuali Foundation
003 *
004 * Licensed under the Educational Community License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.opensource.org/licenses/ecl2.php
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package org.kuali.rice.ken.util;
017
018import java.util.concurrent.Callable;
019
020import org.springframework.transaction.TransactionStatus;
021import org.springframework.transaction.support.TransactionCallback;
022import org.springframework.transaction.support.TransactionTemplate;
023
024/**
025 * A Callable that performs work within a transaction and returns the
026 * TransactionCallback's result
027 * @author Kuali Rice Team (rice.collab@kuali.org)
028 */
029public class TransactionedCallable implements Callable, TransactionCallback {
030    private TransactionTemplate txTemplate;
031    private TransactionCallback callback;
032    
033    /**
034     * Constructs a TransactionedCallable.java.
035     * @param txTemplate
036     */
037    public TransactionedCallable(TransactionTemplate txTemplate) {
038        this.txTemplate = txTemplate;
039    }
040
041    /**
042     * Constructs a TransactionedCallable.java.
043     * @param txTemplate
044     * @param callback
045     */
046    public TransactionedCallable(TransactionTemplate txTemplate, TransactionCallback callback) {
047        this.txTemplate = txTemplate;
048        this.callback = callback;
049    }
050
051    /**
052     * @see java.util.concurrent.Callable#call()
053     */
054    public Object call() throws Exception {
055        TransactionCallback cb;
056        if (callback != null) {
057            cb = callback;
058        } else {
059            cb = this;
060        }
061        return txTemplate.execute(cb);
062    }
063
064    /**
065     * @see org.springframework.transaction.support.TransactionCallback#doInTransaction(org.springframework.transaction.TransactionStatus)
066     */
067    public Object doInTransaction(TransactionStatus txStatus) {
068        return null;
069    }
070}