KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > com > sun > jdo > spi > persistence > support > sqlstore > PersistenceWrapper


1 /*
2  * The contents of this file are subject to the terms
3  * of the Common Development and Distribution License
4  * (the License). You may not use this file except in
5  * compliance with the License.
6  *
7  * You can obtain a copy of the license at
8  * https://glassfish.dev.java.net/public/CDDLv1.0.html or
9  * glassfish/bootstrap/legal/CDDLv1.0.txt.
10  * See the License for the specific language governing
11  * permissions and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL
14  * Header Notice in each file and include the License file
15  * at glassfish/bootstrap/legal/CDDLv1.0.txt.
16  * If applicable, add the following below the CDDL Header,
17  * with the fields enclosed by brackets [] replaced by
18  * you own identifying information:
19  * "Portions Copyrighted [year] [name of copyright owner]"
20  *
21  * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
22  */
23
24 /*
25  * PersistenceWrapper.java
26  *
27  * Create on March 3, 2000
28  *
29  */
30
31 package com.sun.jdo.spi.persistence.support.sqlstore;
32
33
34 // This is a thin wrapper for Persistent class
35
36 public class PersistenceWrapper {
37     public static final int IN_USE = 1;
38     public static final int NOT_IN_USE = 2;
39     public static final int DELETED = 3;
40
41     // flags that indicate if all Persistent objects
42 // in use for this primary key object, how many copies
43 // of the instance exist (inUse > 0), and if any one of
44 // them has been deleted (state == DELETED)
45 private int state = 0;
46     private int inUse = 0;
47
48     // Persistent object itself
49 private Object JavaDoc persistent = null;
50
51     public void setState(int newstate) {
52         this.state = newstate;
53     }
54
55     public int getState() {
56         return state;
57     }
58
59     public void addInUse() {
60         inUse++;
61     }
62
63     public int removeInUse() {
64         if (inUse > 0) {
65             inUse--;
66         }
67         return inUse;
68     }
69
70     public int getInUse() {
71         return inUse;
72     }
73
74     public void setPersistent(Object JavaDoc newobject) {
75         persistent = newobject;
76     }
77
78     public Object JavaDoc getPersistent() {
79         return persistent;
80     }
81
82 }
83
Popular Tags