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Java > Open Source Codes > org > jgap > util > LRUCache


1 package org.jgap.util;
2
3 import java.util.*;
4
5 public class LRUCache extends LinkedHashMap {
6   // Create cache
7
8   private int m_maxEntries;
9
10   public LRUCache(int a_maxExtries) {
11     super(a_maxExtries+1, 0.75F, true);
12     m_maxEntries = a_maxExtries;
13   }
14     // This method is called just after a new entry has been added
15 public boolean removeEldestEntry(Map.Entry eldest) {
16       return size() > m_maxEntries;
17     }
18
19   // If the cache is to be used by multiple threads,
20 // the cache must be wrapped with code to synchronize the methods
21 // cache = (Map) Collections.synchronizedMap(cache);
22 }
23
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