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1 | /******************************************************************************* |
2 | * Copyright (c) 2014 Ericsson | |
3 | * | |
4 | * All rights reserved. This program and the accompanying materials are | |
5 | * made available under the terms of the Eclipse Public License v1.0 which | |
6 | * accompanies this distribution, and is available at | |
7 | * http://www.eclipse.org/legal/epl-v10.html | |
8 | * | |
9 | * Contributors: | |
10 | * Patrick Tasse - Initial API and implementation | |
11 | *******************************************************************************/ | |
12 | ||
13 | package org.eclipse.linuxtools.tmf.ui.viewers; | |
14 | ||
15 | import java.util.Collection; | |
16 | ||
17 | import org.eclipse.jface.viewers.ITreeContentProvider; | |
18 | import org.eclipse.jface.viewers.Viewer; | |
19 | ||
20 | /** | |
21 | * This implementation of <code>ITreeContentProvider</code> handles the case | |
22 | * where the viewer input is an unchanging array or collection of elements. | |
23 | * The elements do not have children. | |
24 | * | |
25 | * @author Patrick Tasse | |
26 | * @since 3.2 | |
27 | */ | |
28 | public class ArrayTreeContentProvider implements ITreeContentProvider { | |
29 | ||
30 | @Override | |
31 | public void dispose() { | |
32 | } | |
33 | ||
34 | @Override | |
35 | public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { | |
36 | } | |
37 | ||
38 | @Override | |
39 | public Object[] getChildren(Object parentElement) { | |
40 | return null; | |
41 | } | |
42 | ||
43 | @Override | |
44 | public Object getParent(Object element) { | |
45 | return null; | |
46 | } | |
47 | ||
48 | @Override | |
49 | public boolean hasChildren(Object element) { | |
50 | return false; | |
51 | } | |
52 | ||
53 | @Override | |
54 | public Object[] getElements(Object inputElement) { | |
55 | if (inputElement instanceof Object[]) { | |
56 | return (Object[]) inputElement; | |
57 | } | |
58 | if (inputElement instanceof Collection) { | |
59 | return ((Collection<?>) inputElement).toArray(); | |
60 | } | |
61 | return new Object[0]; | |
62 | } | |
63 | ||
64 | } |