01: package org.apache.ojb.otm.copy;
02:
03: /* Copyright 2003-2005 The Apache Software Foundation
04: *
05: * Licensed under the Apache License, Version 2.0 (the "License");
06: * you may not use this file except in compliance with the License.
07: * You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: */
17:
18: import org.apache.ojb.broker.PersistenceBroker;
19:
20: /**
21: * @author matthew.baird
22: */
23: public class CloneableObjectCopyStrategy implements ObjectCopyStrategy {
24: /**
25: * If users want to implement clone on all their objects, we can use this
26: * to make copies. This is hazardous as user may mess it up, but it is also
27: * potentially the fastest way of making a copy.
28: *
29: * Usually the OjbCloneable interface should just be delegating to the clone()
30: * operation that the user has implemented.
31: *
32: * @see org.apache.ojb.otm.copy.ObjectCopyStrategy#copy(Object)
33: *
34: */
35: public Object copy(Object obj, PersistenceBroker broker)
36: throws ObjectCopyException {
37: if (obj instanceof OjbCloneable) {
38: try {
39: return ((OjbCloneable) obj).ojbClone();
40: } catch (Exception e) {
41: throw new ObjectCopyException(e);
42: }
43: } else {
44: throw new ObjectCopyException(
45: "Object must implement OjbCloneable in order to use the"
46: + " CloneableObjectCopyStrategy");
47: }
48: }
49: }
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