Mercurial > projects > dwt2
comparison org.eclipse.core.databinding/src/org/eclipse/core/databinding/observable/list/ListDiffEntry.d @ 78:0a55d2d5a946
Added file for databinding
author | Frank Benoit <benoit@tionex.de> |
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date | Tue, 14 Apr 2009 11:35:29 +0200 |
parents | |
children | 6be48cf9f95c |
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76:f05e6e8b2f2d | 78:0a55d2d5a946 |
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1 /******************************************************************************* | |
2 * Copyright (c) 2006 IBM Corporation and others. | |
3 * All rights reserved. This program and the accompanying materials | |
4 * are made available under the terms of the Eclipse Public License v1.0 | |
5 * which accompanies this distribution, and is available at | |
6 * http://www.eclipse.org/legal/epl-v10.html | |
7 * | |
8 * Contributors: | |
9 * IBM Corporation - initial API and implementation | |
10 ******************************************************************************/ | |
11 | |
12 module org.eclipse.core.databinding.observable.list.ListDiffEntry; | |
13 | |
14 import java.lang.all; | |
15 | |
16 /** | |
17 * A single addition of an element to a list or removal of an element from a list. | |
18 * | |
19 * @since 1.0 | |
20 */ | |
21 public abstract class ListDiffEntry { | |
22 | |
23 /** | |
24 * @return the 0-based position of the addition or removal | |
25 */ | |
26 public abstract int getPosition(); | |
27 | |
28 /** | |
29 * @return true if this represents an addition, false if this represents a removal | |
30 */ | |
31 public abstract bool isAddition(); | |
32 | |
33 /** | |
34 * @return the element that was added or removed | |
35 */ | |
36 public abstract Object getElement(); | |
37 | |
38 /** | |
39 * @see java.lang.Object#toString() | |
40 */ | |
41 public String toString() { | |
42 StringBuffer buffer = new StringBuffer(); | |
43 buffer | |
44 .append(this.getClass().getName()) | |
45 .append("{position [") //$NON-NLS-1$ | |
46 .append(getPosition()) | |
47 .append("], isAddition [") //$NON-NLS-1$ | |
48 .append(isAddition()) | |
49 .append("], element [") //$NON-NLS-1$ | |
50 .append(getElement() !is null ? getElement().toString() : "null") //$NON-NLS-1$ | |
51 .append("]}"); //$NON-NLS-1$ | |
52 | |
53 return buffer.toString(); | |
54 } | |
55 } |