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Java > Open Source Codes > org > apache > ojb > broker > core > proxy > MaterializationListener


1 package org.apache.ojb.broker.core.proxy;
2
3 /* Copyright 2002-2005 The Apache Software Foundation
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
8  *
9  * 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.Identity;
19
20
21 /**
22  * This is a callback interface that allows interaction with the
23  * Materialization process of the IndirectionHandler
24  * The ODMG TransactionImpl implements this interface to
25  * provide a delayed registration mechanism for proxies.
26  * @author Thomas Mahler
27  * @version $Id: MaterializationListener.java,v 1.1.2.1 2005/12/21 22:25:30 tomdz Exp $
28  */

29 public interface MaterializationListener
30 {
31     /**
32      * this callback is invoked before an Object is materialized
33      * within an IndirectionHandler.
34      * @param handler the invoking handler
35      * @param oid the identity of the object to be materialized
36      */

37     public abstract void beforeMaterialization(IndirectionHandler handler, Identity oid);
38
39     /**
40      * this callback is invoked after an Object is materialized
41      * within an IndirectionHandler.
42      * @param handler the invoking handler
43      * @param materializedObject the materialized Object
44      */

45     public abstract void afterMaterialization(IndirectionHandler handler, Object JavaDoc materializedObject);
46 }
47
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