01: package org.apache.ojb.otm.lock.wait;
02:
03: /* Copyright 2003-2005 The Apache Software Foundation
04: *
05: * Licensed under the Apache License, Version 2.0 (the "License");
06: * you may not use this file except in compliance with the License.
07: * You may obtain a copy of the License at
08: *
09: * 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.otm.core.Transaction;
19: import org.apache.ojb.otm.lock.LockingException;
20: import org.apache.ojb.otm.lock.ObjectLock;
21:
22: /**
23: *
24: * LockWaitStrategy is responsible for waiting for a particular lock to be released. Typically, the
25: * LockWaitStrategy implements deadlock prevention/detection/recovery mechanisms.
26: *
27: * @author <a href="mailto:rraghuram@hotmail.com">Raghu Rajah</a>
28: *
29: */
30: public interface LockWaitStrategy {
31:
32: /**
33: * @param lock The lock that the tx is waiting for
34: * @param tx The waiting tx
35: */
36: public void waitForLock(ObjectLock lock, Transaction tx)
37: throws LockingException;
38: }
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