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Java > Open Source Codes > org > objectweb > transaction > api > lock > ConflictLockCheckFeature


1 /*====================================================================
2
3 ObjectWeb Transaction Working Group API
4 Contact: http://www.objectweb.org
5
6 This library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or any later version.
10
11 This library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public
17 License along with this library; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
19 USA
20
21 Initial developer(s): Romain Rouvoy.
22 Contributor(s): ______________________________________.
23
24 ---------------------------------------------------------------------
25 $Id: ConflictLockCheckFeature.java,v 1.1.1.1 2003/12/01 15:14:18 rouvoy Exp $
26 ====================================================================*/
27 package org.objectweb.transaction.api.lock;
28
29 import org.objectweb.transaction.api.Feature;
30
31 /**
32  * Feature providing a way of checking if two LockMode are conflicting.
33  *
34  * @author <a HREF="mailto:Romain.Rouvoy@lifl.fr">Romain Rouvoy</a>
35  * @version 0.1
36  * @adl.id name="CONFLICT_LOCK_CHECK_FEATURE" value="conflict-lock-check-feature"
37  */
38 public interface ConflictLockCheckFeature
39          extends Feature
40 {
41     /**
42      * ADL Identifier.
43      */
44     public static final String JavaDoc CONFLICT_LOCK_CHECK_FEATURE = "conflict-lock-check-feature";
45
46     /**
47      * Checkes if two lock modes are conflicting.
48      * @param acquired the lock mode acquired.
49      * @param requested the lock mode requested.
50      * @return true if the two modes are conflicting (false if non-conflicting).
51      */
52     public boolean isConflict(LockMode acquired, LockMode requested);
53 }
54
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