Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
NoOpCache |
|
| 1.125;1.125 |
1 | /* | |
2 | * Copyright 2001-2004 The Apache Software Foundation | |
3 | * | |
4 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
5 | * you may not 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. | |
15 | */ | |
16 | package org.apache.commons.cache; | |
17 | ||
18 | import java.io.Serializable; | |
19 | ||
20 | /** | |
21 | * A {@link Cache} that doesn't. | |
22 | * @version $Id: NoOpCache.java 155435 2005-02-26 13:17:27Z dirkv $ | |
23 | * @author Rodney Waldhoff | |
24 | */ | |
25 | 0 | public class NoOpCache extends BaseCache implements Cache { |
26 | /** Returns <tt>false</tt>. */ | |
27 | public boolean store(Serializable key, Serializable val, Long expiry, Long cost, Serializable group) { | |
28 | 0 | broadcastStoreRequested(key,val,expiry,cost,group); |
29 | 0 | broadcastNotStored(key,val,expiry,cost,group); |
30 | 0 | return false; |
31 | } | |
32 | ||
33 | /** Returns <tt>null</tt>. */ | |
34 | public Serializable retrieve(Serializable key) { | |
35 | 0 | broadcastRetrieveRequested(key); |
36 | 0 | broadcastNotRetrieved(key); |
37 | 0 | return null; |
38 | } | |
39 | ||
40 | /** Returns an empty array. */ | |
41 | public Serializable[] getKeysForGroup(Serializable group) { | |
42 | 0 | return new Serializable[0]; |
43 | } | |
44 | ||
45 | /** Returns <tt>false</tt> */ | |
46 | public boolean contains(Serializable key) { | |
47 | 0 | return false; |
48 | } | |
49 | ||
50 | /** No-op. */ | |
51 | public void clear(Serializable key) { | |
52 | 0 | } |
53 | ||
54 | /** No-op. */ | |
55 | public void clearGroup(Serializable group) { | |
56 | 0 | } |
57 | ||
58 | /** No-op. */ | |
59 | public void clear() { | |
60 | 0 | } |
61 | ||
62 | /** Throws {@link UnsupportedOperationException} */ | |
63 | public long getStat(CacheStat stat) throws UnsupportedOperationException { | |
64 | 0 | throw new UnsupportedOperationException(); |
65 | } | |
66 | } |