blob: ce0d3397e52569fc2b452ebe031a1db3f5ea3ec3 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
/*******************************************************************************
* Copyright (c) 2011 Google, Inc.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Google, Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.wb.internal.core.utils.reflect;
import java.util.HashMap;
import java.util.Map;
/**
* {@link Map}-like interface for mapping {@link Class} to value.
*
* @author scheglov_ke
* @coverage core.util
*/
public final class ClassMap<V> {
////////////////////////////////////////////////////////////////////////////
//
// Constructor
//
////////////////////////////////////////////////////////////////////////////
/**
* Creates new instance of {@link ClassMap}.
*/
public static <V> ClassMap<V> create() {
return new ClassMap<V>();
}
////////////////////////////////////////////////////////////////////////////
//
// Map
//
////////////////////////////////////////////////////////////////////////////
public void put(Class<?> key, V value) {
getMap(key).put(key, value);
}
public V get(Class<?> key) {
return getMap(key).get(key);
}
public void remove(Class<?> key) {
getMap(key).remove(key);
}
public void clear(ClassLoader classLoader) {
getMap(classLoader).clear();
}
////////////////////////////////////////////////////////////////////////////
//
// Implementation
//
////////////////////////////////////////////////////////////////////////////
private Map<Class<?>, V> getMap(Class<?> key) {
ClassLoader classLoader = key.getClassLoader();
return getMap(classLoader);
}
@SuppressWarnings("unchecked")
private Map<Class<?>, V> getMap(ClassLoader classLoader) {
Object map = ClassLoaderLocalMap.get(classLoader, this);
if (map == null) {
map = new HashMap<Class<?>, V>();
ClassLoaderLocalMap.put(classLoader, this, map);
}
return (Map<Class<?>, V>) map;
}
}
|
