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1 package org.hibernate.util;
3
4 import java.util.Map  ;
5 import java.util.Set ;
6
7 import org.hibernate.AssertionFailure;
8
9 public final class LinkedHashCollectionHelper {
10
11 private static final Class SET_CLASS;
12 private static final Class MAP_CLASS;
13 static {
14 Class setClass;
15 Class mapClass;
16 try {
17 setClass = Class.forName("java.util.LinkedHashSet");
18 mapClass = Class.forName("java.util.LinkedHashMap");
19 }
20 catch (ClassNotFoundException cnfe) {
21 setClass = null;
22 mapClass = null;
23 }
24 SET_CLASS = setClass;
25 MAP_CLASS = mapClass;
26 }
27
28 public static Set createLinkedHashSet() {
29 try {
30 return (Set ) SET_CLASS.newInstance();
31 }
32 catch (Exception e) {
33 throw new AssertionFailure("Could not instantiate LinkedHashSet", e);
34 }
35 }
36
37 public static Map createLinkedHashMap() {
38 try {
39 return (Map ) MAP_CLASS.newInstance();
40 }
41 catch (Exception e) {
42 throw new AssertionFailure("Could not instantiate LinkedHashMap", e);
43 }
44 }
45
46 private LinkedHashCollectionHelper() {}
47
48 }
49
50
51
52
53
54
55 |
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