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Java > Open Source Codes > org > apache > roller > util > cache > CacheHandler


1 /*
2  * Licensed to the Apache Software Foundation (ASF) under one or more
3  * contributor license agreements. The ASF licenses this file to You
4  * under the Apache License, Version 2.0 (the "License"); you may not
5  * use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License. For additional information regarding
15  * copyright in this work, please see the NOTICE file in the top level
16  * directory of this distribution.
17  */
18
19 package org.apache.roller.util.cache;
20
21 import java.util.Map JavaDoc;
22 import org.apache.roller.pojos.BookmarkData;
23 import org.apache.roller.pojos.CommentData;
24 import org.apache.roller.pojos.FolderData;
25 import org.apache.roller.pojos.RefererData;
26 import org.apache.roller.pojos.UserData;
27 import org.apache.roller.pojos.WeblogCategoryData;
28 import org.apache.roller.pojos.WeblogEntryData;
29 import org.apache.roller.pojos.WeblogTemplate;
30 import org.apache.roller.pojos.WebsiteData;
31
32
33 /**
34  * Represents someone that wants to receive notifications about cache
35  * invalidation events.
36  *
37  * A CacheHandler can be registered with the CacheManager and then will
38  * receive all the various object invalidation events happening in the
39  * system. Typically classes which are using a cache will want to implement
40  * this interface so that they can know when to remove items from their cache.
41  */
42 public interface CacheHandler {
43     
44     public void invalidate(WeblogEntryData entry);
45     
46     public void invalidate(WebsiteData website);
47     
48     public void invalidate(BookmarkData bookmark);
49     
50     public void invalidate(FolderData folder);
51
52     public void invalidate(CommentData comment);
53
54     public void invalidate(RefererData referer);
55
56     public void invalidate(UserData user);
57
58     public void invalidate(WeblogCategoryData category);
59
60     public void invalidate(WeblogTemplate template);
61     
62 }
63
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