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1 package com.jdon.util;
2
3 import java.util.Map  ;
4 import java.util.concurrent.ConcurrentHashMap ;
5
6
13 public class SimpleCachePool {
14
15 private static SimpleCachePool _instance;
16 private static int _SIZE = 100000;
17
18 private Map _scPool;
19
20 public static Object get(String id) {
21 return _getInstance()._get(id);
22 }
23
24 public static void put(String id, Object obj) {
25 _getInstance()._put(id, obj);
26 }
27
28 public static Object remove(String id) {
29 return _getInstance()._remove(id);
30 }
31
32 private static SimpleCachePool _getInstance() {
33 if (_instance == null) {
34 synchronized (SimpleCachePool.class) {
35 if (_instance == null) {
36 _instance = new SimpleCachePool();
37 }
38 }
39 }
40 return _instance;
41 }
42
43 private SimpleCachePool() {
44 _scPool = new ConcurrentHashMap (_SIZE);
45 }
46
47 private Object _get(String id) {
48 return (Object )_scPool.get(id);
49 }
50
51 private void _put(String id, Object ds) {
52 _scPool.put(id, ds);
53 }
54
55 private Object _remove(String id) {
56 return _scPool.remove(id);
57 }
58
59
60
61 }
62 |
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