| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| LockMap |
|
| 1.0;1 |
| 1 | package org.apache.ojb.odmg.locking; | |
| 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.util.configuration.Configurable; | |
| 19 | import org.apache.ojb.odmg.TransactionImpl; | |
| 20 | ||
| 21 | import java.util.Collection; | |
| 22 | ||
| 23 | /** | |
| 24 | * @deprecated | |
| 25 | */ | |
| 26 | public interface LockMap extends Configurable | |
| 27 | { | |
| 28 | /** | |
| 29 | * returns the LockEntry for the Writer of object obj. | |
| 30 | * If now writer exists, null is returned. | |
| 31 | */ | |
| 32 | public LockEntry getWriter(Object obj); | |
| 33 | ||
| 34 | /** | |
| 35 | * returns a collection of Reader LockEntries for object obj. | |
| 36 | * If now LockEntries could be found an empty Vector is returned. | |
| 37 | */ | |
| 38 | public Collection getReaders(Object obj); | |
| 39 | ||
| 40 | /** | |
| 41 | * Add a reader lock entry for transaction tx on object obj | |
| 42 | * to the persistent storage. | |
| 43 | */ | |
| 44 | public boolean addReader(TransactionImpl tx, Object obj); | |
| 45 | ||
| 46 | /** | |
| 47 | * remove a reader lock entry for transaction tx on object obj | |
| 48 | * from the persistent storage. | |
| 49 | */ | |
| 50 | public void removeReader(TransactionImpl tx, Object obj); | |
| 51 | ||
| 52 | /** | |
| 53 | * remove a writer lock entry for transaction tx on object obj | |
| 54 | * from the persistent storage. | |
| 55 | */ | |
| 56 | public void removeWriter(LockEntry writer); | |
| 57 | ||
| 58 | /** | |
| 59 | * upgrade a reader lock entry for transaction tx on object obj | |
| 60 | * and write it to the persistent storage. | |
| 61 | */ | |
| 62 | public boolean upgradeLock(LockEntry reader); | |
| 63 | ||
| 64 | /** | |
| 65 | * generate a writer lock entry for transaction tx on object obj | |
| 66 | * and write it to the persistent storage. | |
| 67 | */ | |
| 68 | public boolean setWriter(TransactionImpl tx, Object obj); | |
| 69 | ||
| 70 | /** | |
| 71 | * check if there is a reader lock entry for transaction tx on object obj | |
| 72 | * in the persistent storage. | |
| 73 | */ | |
| 74 | public boolean hasReadLock(TransactionImpl tx, Object obj); | |
| 75 | } |