Mercurial > dive4elements > framework
annotate artifacts-common/src/main/java/de/intevation/artifacts/common/utils/LRUCache.java @ 453:a2efc9d65a11 2.9.8
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author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Fri, 28 Dec 2012 13:32:32 +0100 |
parents | c40729bfe06d |
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Added simple in-memory LRU cache
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1 package de.intevation.artifacts.common.utils; |
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2 |
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3 import java.util.Map; |
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4 import java.util.LinkedHashMap; |
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5 |
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6 public class LRUCache<K, V> |
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7 extends LinkedHashMap<K, V> |
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8 { |
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9 public static final int DEFAULT_MAX_CAPACITY = 25; |
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10 |
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11 private int maxCapacity; |
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12 |
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13 public LRUCache() { |
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14 this(DEFAULT_MAX_CAPACITY); |
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15 } |
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16 |
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17 public LRUCache(int maxCapacity) { |
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18 this.maxCapacity = maxCapacity; |
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19 } |
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20 |
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21 @Override |
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22 protected boolean removeEldestEntry(Map.Entry<K, V> eldest) { |
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23 return size() > maxCapacity; |
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24 } |
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25 } |
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26 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |