Mercurial > projects > dwt2
annotate org.eclipse.core.databinding.observable/src/org/eclipse/core/databinding/observable/set/ListToSetAdapter.d @ 97:c86eb8b3098e
packageimport
author | Frank Benoit <benoit@tionex.de> |
---|---|
date | Tue, 21 Apr 2009 11:18:25 +0200 |
parents | b74ac5dfcc06 |
children |
rev | line source |
---|---|
95
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1 /******************************************************************************* |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
2 * Copyright (c) 2006, 2007 IBM Corporation and others. |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
3 * All rights reserved. This program and the accompanying materials |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
4 * are made available under the terms of the Eclipse Public License v1.0 |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
5 * which accompanies this distribution, and is available at |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
6 * http://www.eclipse.org/legal/epl-v10.html |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
7 * |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
8 * Contributors: |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
9 * IBM Corporation - initial API and implementation |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
10 *******************************************************************************/ |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
11 |
96
b74ac5dfcc06
package to module and java.lang.all import
Frank Benoit <benoit@tionex.de>
parents:
95
diff
changeset
|
12 module org.eclipse.core.databinding.observable.set.ListToSetAdapter; |
97 | 13 import org.eclipse.core.databinding.observable.set.ObservableSet; |
96
b74ac5dfcc06
package to module and java.lang.all import
Frank Benoit <benoit@tionex.de>
parents:
95
diff
changeset
|
14 |
b74ac5dfcc06
package to module and java.lang.all import
Frank Benoit <benoit@tionex.de>
parents:
95
diff
changeset
|
15 import java.lang.all; |
95
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
16 |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
17 import java.util.HashSet; |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
18 import java.util.Set; |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
19 |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
20 import org.eclipse.core.databinding.observable.Diffs; |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
21 import org.eclipse.core.databinding.observable.Realm; |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
22 import org.eclipse.core.databinding.observable.list.IListChangeListener; |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
23 import org.eclipse.core.databinding.observable.list.IObservableList; |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
24 import org.eclipse.core.databinding.observable.list.ListChangeEvent; |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
25 import org.eclipse.core.databinding.observable.list.ListDiffEntry; |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
26 |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
27 /** |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
28 * Observable set backed by an observable list. The wrapped list must not |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
29 * contain duplicate elements. |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
30 * |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
31 * <p> |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
32 * This class is thread safe. All state accessing methods must be invoked from |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
33 * the {@link Realm#isCurrent() current realm}. Methods for adding and removing |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
34 * listeners may be invoked from any thread. |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
35 * </p> |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
36 * |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
37 * @since 1.0 |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
38 * |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
39 */ |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
40 public class ListToSetAdapter : ObservableSet { |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
41 |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
42 private final IObservableList list; |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
43 |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
44 private IListChangeListener listener = new class() IListChangeListener { |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
45 |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
46 public void handleListChange(ListChangeEvent event) { |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
47 Set added = new HashSet(); |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
48 Set removed = new HashSet(); |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
49 ListDiffEntry[] differences = event.diff.getDifferences(); |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
50 for (int i = 0; i < differences.length; i++) { |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
51 ListDiffEntry entry = differences[i]; |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
52 Object element = entry.getElement(); |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
53 if (entry.isAddition()) { |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
54 if (wrappedSet.add(element)) { |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
55 if (!removed.remove(element)) |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
56 added.add(element); |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
57 } |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
58 } else { |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
59 if (wrappedSet.remove(element)) { |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
60 removed.add(element); |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
61 added.remove(element); |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
62 } |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
63 } |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
64 } |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
65 fireSetChange(Diffs.createSetDiff(added, removed)); |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
66 } |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
67 }; |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
68 |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
69 /** |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
70 * @param list |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
71 */ |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
72 public this(IObservableList list) { |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
73 super(list.getRealm(), new HashSet(), list.getElementType()); |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
74 this.list = list; |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
75 wrappedSet.addAll(list); |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
76 this.list.addListChangeListener(listener); |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
77 } |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
78 |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
79 public synchronized void dispose() { |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
80 super.dispose(); |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
81 if (list !is null && listener !is null) { |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
82 list.removeListChangeListener(listener); |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
83 listener = null; |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
84 } |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
85 } |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
86 |
6208d4f6a277
Added trees for databinding.beans and observable
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
87 } |