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Java > Open Source Codes > org > apache > derby > iapi > services > locks > Limit


1 /*
2
3    Derby - Class org.apache.derby.iapi.services.locks.Limit
4
5    Licensed to the Apache Software Foundation (ASF) under one or more
6    contributor license agreements. See the NOTICE file distributed with
7    this work for additional information regarding copyright ownership.
8    The ASF licenses this file to you under the Apache License, Version 2.0
9    (the "License"); you may not use this file except in compliance with
10    the License. You may obtain a copy of the License at
11
12       http://www.apache.org/licenses/LICENSE-2.0
13
14    Unless required by applicable law or agreed to in writing, software
15    distributed under the License is distributed on an "AS IS" BASIS,
16    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17    See the License for the specific language governing permissions and
18    limitations under the License.
19
20  */
21
22 package org.apache.derby.iapi.services.locks;
23
24 import org.apache.derby.iapi.error.StandardException;
25 import java.util.Enumeration JavaDoc;
26
27 /**
28     A limit represents a callback on a lock
29     group. It is called when the size of
30     the group reaches the limit set on the
31     call.
32
33     @see LockFactory#setLimit
34 */
35 public interface Limit {
36
37     /**
38         Called by the lock factory when a limit has been reached.
39
40         @param compatabilitySpace lock space the limit was set for
41         @param group lock group the limit was set for
42         @param limit the limit's setting
43         @param lockList the list of Lockable's in the group
44         @param lockCount the number of locks in the group
45
46         @exception StandardException Standard Cloudscape error policy.
47     */
48     public void reached(Object JavaDoc compatabilitySpace, Object JavaDoc group, int limit,
49         Enumeration JavaDoc lockList, int lockCount)
50         throws StandardException;
51
52 }
53
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