001    package org.apache.ojb.otm.copy;
002    
003    /* Copyright 2003-2005 The Apache Software Foundation
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    import org.apache.ojb.broker.PersistenceBroker;
019    
020    /**
021     * The NoOpObjectCopyStrategy does not make a copy. It merely returns the same object.
022     *
023     * For backwards compatability with OJB 0.9, we include a way to no-op copy
024     * the object into the transactional context. This means that we are operating
025     * on a live object, and can potentially mess stuff up. This is essentially
026     * supporting a uncommitted-read only strategy.
027     *
028     * @author matthew.baird
029     */
030    public class NoOpObjectCopyStrategy implements ObjectCopyStrategy
031    {
032            /**
033             * @see org.apache.ojb.otm.copy.ObjectCopyStrategy#copy(Object)
034             *
035             */
036            public Object copy(Object obj, PersistenceBroker broker)
037                            throws ObjectCopyException
038            {
039                    return obj;
040            }
041    }