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Java > Open Source Codes > org > apache > ojb > odmg > NarrowTransaction


1 package org.apache.ojb.odmg;
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.odmg.LockNotGrantedException;
19 import org.apache.ojb.broker.PersistenceBroker;
20 import org.apache.ojb.broker.Identity;
21 import org.apache.ojb.broker.PersistenceBrokerException;
22
23 /**
24  * Wraps {@link org.odmg.Transaction} in managed environments.
25  *
26  * @author <a HREF="mailto:armin@codeAuLait.de">Armin Waibel</a>
27  */
28 public class NarrowTransaction implements TransactionExt
29 {
30     private TransactionImpl tx;
31
32     public NarrowTransaction(TransactionImpl tx)
33     {
34         this.tx = tx;
35     }
36
37     public TransactionImpl getRealTransaction()
38     {
39         return tx;
40     }
41
42     public void markDelete(Object JavaDoc anObject)
43     {
44         this.tx.markDelete(anObject);
45     }
46
47     public void markDirty(Object JavaDoc anObject)
48     {
49         this.tx.markDirty(anObject);
50     }
51
52     public void flush()
53     {
54         tx.flush();
55     }
56
57     /**
58      * Return associated PB instance, or null if not found.
59      */
60     public PersistenceBroker getBroker()
61     {
62         return tx.getBroker();
63     }
64
65     /**
66      * Not supported!!
67      */
68     public void join()
69     {
70         throw new UnsupportedOperationException JavaDoc("Not supported operation");
71     }
72
73     /**
74      * Not supported!!
75      */
76     public void leave()
77     {
78         throw new UnsupportedOperationException JavaDoc("Not supported operation");
79     }
80
81     /**
82      * Not supported!!
83      */
84     public void begin()
85     {
86         throw new UnsupportedOperationException JavaDoc("Not supported operation");
87     }
88
89     /**
90      * Not supported!!
91      */
92     public boolean isOpen()
93     {
94         return tx.isOpen();
95     }
96
97     /**
98      * Not supported!!
99      */
100     public void commit()
101     {
102         throw new UnsupportedOperationException JavaDoc("Not supported operation");
103     }
104
105     /**
106      * Abort the underlying odmg-transaction
107      */
108     public void abort()
109     {
110         tx.abort();
111         //throw new UnsupportedOperationException("Not supported operation");
112 }
113
114     /**
115      * Not supported!!
116      */
117     public void checkpoint()
118     {
119         throw new UnsupportedOperationException JavaDoc("Not supported operation");
120     }
121
122     /**
123      * lock the given object
124      * @see org.odmg.Transaction#lock
125      */
126     public void lock(Object JavaDoc obj, int lockMode)
127             throws LockNotGrantedException
128     {
129         tx.lock(obj, lockMode);
130     }
131
132     /**
133      * lock the given object if possible
134      * @see org.odmg.Transaction#tryLock
135      */
136     public boolean tryLock(Object JavaDoc obj, int lockMode)
137     {
138         return tx.tryLock(obj, lockMode);
139     }
140
141     public Object JavaDoc getObjectByIdentity(Identity id)
142             throws PersistenceBrokerException
143     {
144         return tx.getObjectByIdentity(id);
145     }
146     /**
147      * @see org.apache.ojb.odmg.TransactionExt#setImplicitLocking(boolean)
148      */
149     public void setImplicitLocking(boolean value)
150     {
151         tx.setImplicitLocking(value);
152     }
153
154     /**
155      * @see org.apache.ojb.odmg.TransactionExt#isImplicitLocking
156      */
157     public boolean isImplicitLocking()
158     {
159         return tx.isImplicitLocking();
160     }
161
162     /**
163      * @see org.apache.ojb.odmg.TransactionExt#setCascadingDelete(Class, String, boolean)
164      */
165     public void setCascadingDelete(Class JavaDoc target, String JavaDoc referenceField, boolean doCascade)
166     {
167         tx.setCascadingDelete(target, referenceField, doCascade);
168     }
169
170     /**
171      * @see org.apache.ojb.odmg.TransactionExt#setCascadingDelete(Class, boolean)
172      */
173     public void setCascadingDelete(Class JavaDoc target, boolean doCascade)
174     {
175         tx.setCascadingDelete(target, doCascade);
176     }
177
178     public boolean isOrdering()
179     {
180         return tx.isOrdering();
181     }
182
183     public void setOrdering(boolean ordering)
184     {
185         tx.setOrdering(ordering);
186     }
187
188 // public boolean isNoteUserOrder()
189 // {
190 // return tx.isNoteUserOrder();
191 // }
192 //
193 // public void setNoteUserOrder(boolean noteUserOrder)
194 // {
195 // tx.setNoteUserOrder(noteUserOrder);
196 // }
197
198     public boolean isDeleted(Identity id)
199     {
200         return tx.isDeleted(id);
201     }
202 }
203
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