001 package org.apache.ojb.odmg;
002
003 /* Copyright 2002-2005 The Apache Software Foundation
004 *
005 * Licensed under the Apache License, Version 2.0 (the "License");
006 * you may not use this file except in compliance with the License.
007 * You may obtain a copy of the License at
008 *
009 * http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017
018 import org.odmg.LockNotGrantedException;
019 import org.apache.ojb.broker.PersistenceBroker;
020 import org.apache.ojb.broker.Identity;
021 import org.apache.ojb.broker.PersistenceBrokerException;
022
023 /**
024 * Wraps {@link org.odmg.Transaction} in managed environments.
025 *
026 * @author <a href="mailto:armin@codeAuLait.de">Armin Waibel</a>
027 */
028 public class NarrowTransaction implements TransactionExt
029 {
030 private TransactionImpl tx;
031
032 public NarrowTransaction(TransactionImpl tx)
033 {
034 this.tx = tx;
035 }
036
037 public TransactionImpl getRealTransaction()
038 {
039 return tx;
040 }
041
042 public void markDelete(Object anObject)
043 {
044 this.tx.markDelete(anObject);
045 }
046
047 public void markDirty(Object anObject)
048 {
049 this.tx.markDirty(anObject);
050 }
051
052 public void flush()
053 {
054 tx.flush();
055 }
056
057 /**
058 * Return associated PB instance, or null if not found.
059 */
060 public PersistenceBroker getBroker()
061 {
062 return tx.getBroker();
063 }
064
065 /**
066 * Not supported!!
067 */
068 public void join()
069 {
070 throw new UnsupportedOperationException("Not supported operation");
071 }
072
073 /**
074 * Not supported!!
075 */
076 public void leave()
077 {
078 throw new UnsupportedOperationException("Not supported operation");
079 }
080
081 /**
082 * Not supported!!
083 */
084 public void begin()
085 {
086 throw new UnsupportedOperationException("Not supported operation");
087 }
088
089 /**
090 * Not supported!!
091 */
092 public boolean isOpen()
093 {
094 return tx.isOpen();
095 }
096
097 /**
098 * Not supported!!
099 */
100 public void commit()
101 {
102 throw new UnsupportedOperationException("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("Not supported operation");
120 }
121
122 /**
123 * lock the given object
124 * @see org.odmg.Transaction#lock
125 */
126 public void lock(Object 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 obj, int lockMode)
137 {
138 return tx.tryLock(obj, lockMode);
139 }
140
141 public Object 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 target, String 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 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 }