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LRUMap | Line # 28 | 2 | 0% | 3 | 0 | 100% |
1.0
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0.6
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org.kuali.student.common.util.TestLRUMap.testDefaultMaximumEntries org.kuali.student.common.util.TestLRUMap.testDefaultMaximumEntries | 1 PASS | |
0.4
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org.kuali.student.common.util.TestLRUMap.testRemoveEldestEntry org.kuali.student.common.util.TestLRUMap.testRemoveEldestEntry | 1 PASS | |
1 | /** | |
2 | * Copyright 2010 The Kuali Foundation Licensed under the | |
3 | * Educational Community License, Version 2.0 (the "License"); you may | |
4 | * not use this file except in compliance with the License. You may | |
5 | * obtain a copy of the License at | |
6 | * | |
7 | * http://www.osedu.org/licenses/ECL-2.0 | |
8 | * | |
9 | * Unless required by applicable law or agreed to in writing, | |
10 | * software distributed under the License is distributed on an "AS IS" | |
11 | * BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express | |
12 | * or implied. See the License for the specific language governing | |
13 | * permissions and limitations under the License. | |
14 | */ | |
15 | ||
16 | package org.kuali.student.common.util; | |
17 | ||
18 | import java.util.LinkedHashMap; | |
19 | import java.util.Map; | |
20 | ||
21 | /** | |
22 | * A <code>Map<code> implementation with a fixed maximum size of a | |
23 | * least recently used (LRU) entry list using a <code>LinkedHashMap</code>. | |
24 | * | |
25 | * @param <K> Key | |
26 | * @param <V> Value | |
27 | */ | |
28 | public class LRUMap<K,V> extends LinkedHashMap<K,V> { | |
29 | /** Class serial version uid */ | |
30 | private static final long serialVersionUID = 1L; | |
31 | ||
32 | /** Maximum size of map */ | |
33 | private int maxSize = 50; | |
34 | ||
35 | /** | |
36 | * Constructs a new LRU Map with a default maximum size of 50 entries. | |
37 | */ | |
38 | 1 | public LRUMap() { |
39 | } | |
40 | ||
41 | /** | |
42 | * Constructs a new LRU Map. | |
43 | * | |
44 | * @param maxSize Maximum size of LRU map. | |
45 | */ | |
46 | 2 | public LRUMap(int maxSize) { |
47 | 2 | this.maxSize = maxSize; |
48 | } | |
49 | ||
50 | /** | |
51 | * Removed oldest entry in map. | |
52 | * | |
53 | * @param eldest Oldest entry to remove | |
54 | */ | |
55 | 67 | public boolean removeEldestEntry(Map.Entry<K,V> eldest) { |
56 | 67 | return size() > this.maxSize; |
57 | } | |
58 | } |
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