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Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
UnlimitedCache.java | - | 100% | 100% | 100% |
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1 | /* | |
2 | * Copyright (c) 2002-2003 by OpenSymphony | |
3 | * All rights reserved. | |
4 | */ | |
5 | package com.opensymphony.oscache.base.algorithm; | |
6 | ||
7 | ||
8 | /** | |
9 | * A simple unlimited cache that has no upper bound to the number of | |
10 | * cache entries it can contain. | |
11 | * | |
12 | * @version $Revision: 1.1 $ | |
13 | * @author <a href="mailto:fbeauregard@pyxis-tech.com">Francois Beauregard</a> | |
14 | * @author <a href="mailto:abergevin@pyxis-tech.com">Alain Bergevin</a> | |
15 | */ | |
16 | public final class UnlimitedCache extends AbstractConcurrentReadCache { | |
17 | /** | |
18 | * Creates an unlimited cache by calling the super class's constructor | |
19 | * with an <code>UNLIMITED</code> maximum number of entries. | |
20 | */ | |
21 | 64 | public UnlimitedCache() { |
22 | 64 | super(); |
23 | 64 | maxEntries = UNLIMITED; |
24 | } | |
25 | ||
26 | /** | |
27 | * Overrides the <code>setMaxEntries</code> with an empty implementation. | |
28 | * This property cannot be modified and is ignored for an | |
29 | * <code>UnlimitedCache</code>. | |
30 | */ | |
31 | 16 | public void setMaxEntries(int maxEntries) { |
32 | } | |
33 | ||
34 | /** | |
35 | * Implements <code>itemRetrieved</code> with an empty implementation. | |
36 | * The unlimited cache doesn't care that an item was retrieved. | |
37 | */ | |
38 | 2000103 | protected void itemRetrieved(Object key) { |
39 | } | |
40 | ||
41 | /** | |
42 | * Implements <code>itemPut</code> with an empty implementation. | |
43 | * The unlimited cache doesn't care that an item was put in the cache. | |
44 | */ | |
45 | 247 | protected void itemPut(Object key) { |
46 | } | |
47 | ||
48 | /** | |
49 | * This method just returns <code>null</code> since items should | |
50 | * never end up being removed from an unlimited cache! | |
51 | */ | |
52 | 8 | protected Object removeItem() { |
53 | 8 | return null; |
54 | } | |
55 | ||
56 | /** | |
57 | * An empty implementation. The unlimited cache doesn't care that an | |
58 | * item was removed. | |
59 | */ | |
60 | 54 | protected void itemRemoved(Object key) { |
61 | } | |
62 | } |
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