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


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  * PersistentNonTransactional.java March 10, 2000 Steffi Rauschenbach
26  */
27
28 package com.sun.jdo.spi.persistence.support.sqlstore.state;
29
30 import com.sun.jdo.spi.persistence.utility.I18NHelper;
31 import com.sun.jdo.spi.persistence.support.sqlstore.ActionDesc;
32
33 import java.util.ResourceBundle JavaDoc;
34
35 public class PersistentNonTransactional extends LifeCycleState {
36     /**
37      * I18N message handler
38      */
39     private final static ResourceBundle JavaDoc messages = I18NHelper.loadBundle(
40             "com.sun.jdo.spi.persistence.support.sqlstore.Bundle", // NOI18N
41 PersistentNonTransactional.class.getClassLoader());
42
43     public PersistentNonTransactional() {
44         // these flags are set only in the constructor
45 // and shouldn't be changed afterwards
46 // (cannot make them final since they are declared in superclass
47 // but their values are specific to subclasses)
48 isPersistent = true;
49         isPersistentInDataStore = true;
50         isTransactional = false;
51         isDirty = false;
52         isNew = false;
53         isDeleted = false;
54         isNavigable = true;
55         isRefreshable = false;
56         isBeforeImageUpdatable = false;
57         needsRegister = false;
58         needsReload = false;
59         needsRestoreOnRollback = false;
60         updateAction = ActionDesc.LOG_NOOP;
61         stateType = P_NON_TX;
62     }
63
64     /**
65      * Operations that cause life cycle state transitions
66      */
67     public LifeCycleState transitionDeletePersistent() {
68         return changeState(P_DELETED);
69     }
70
71     public LifeCycleState transitionWriteField(boolean transactionActive) {
72         if (transactionActive) {
73             return changeState(P_DIRTY);
74         } else {
75             return this;
76         }
77     }
78
79     public LifeCycleState transitionReload(boolean transactionActive) {
80         if (!transactionActive) {
81             return this;
82         } else {
83             return changeState(P_CLEAN);
84         }
85     }
86
87     public boolean needsReload(boolean optimistic,
88                                boolean nontransactionalRead,
89                                boolean transactionActive) {
90         //
91 // Don't allow reload if the transaction is optimistic or not active
92 //
93 if (optimistic || !transactionActive) {
94             return false;
95         }
96
97         return true;
98     }
99
100 }
101
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