Mercurial > dive4elements > framework
annotate artifacts-common/src/main/java/de/intevation/artifacts/common/utils/LRUCache.java @ 335:e7d3f74854fb
Added XMLUtils functions helping to debug parts of xml documents.
artifacts/trunk@2815 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Fri, 23 Sep 2011 08:29:48 +0000 |
parents | 9dbeb88006e9 |
children | c40729bfe06d |
rev | line source |
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9dbeb88006e9
Added simple in-memory LRU cache
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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1 package de.intevation.artifacts.common.utils; |
9dbeb88006e9
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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2 |
9dbeb88006e9
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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3 import java.util.Map; |
9dbeb88006e9
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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4 import java.util.LinkedHashMap; |
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5 |
9dbeb88006e9
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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6 public class LRUCache<K, V> |
9dbeb88006e9
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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7 extends LinkedHashMap<K, V> |
9dbeb88006e9
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8 { |
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9 public static final int DEFAULT_MAX_CAPACITY = 25; |
9dbeb88006e9
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10 |
9dbeb88006e9
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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11 private int maxCapacity; |
9dbeb88006e9
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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12 |
9dbeb88006e9
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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13 public LRUCache() { |
9dbeb88006e9
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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14 this(DEFAULT_MAX_CAPACITY); |
9dbeb88006e9
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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15 } |
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16 |
9dbeb88006e9
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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17 public LRUCache(int maxCapacity) { |
9dbeb88006e9
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18 this.maxCapacity = maxCapacity; |
9dbeb88006e9
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parents:
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19 } |
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20 |
9dbeb88006e9
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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21 @Override |
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22 protected boolean removeEldestEntry(Map.Entry<K, V> eldest) { |
9dbeb88006e9
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23 return size() > maxCapacity; |
9dbeb88006e9
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24 } |
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25 } |
9dbeb88006e9
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26 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |