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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 | ||
2bdf0193 | 13 | package org.eclipse.tracecompass.tmf.ui.viewers; |
6b44794a MK |
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 | |
6b44794a MK |
26 | */ |
27 | public class ArrayTreeContentProvider implements ITreeContentProvider { | |
28 | ||
29 | @Override | |
30 | public void dispose() { | |
31 | } | |
32 | ||
33 | @Override | |
34 | public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { | |
35 | } | |
36 | ||
37 | @Override | |
38 | public Object[] getChildren(Object parentElement) { | |
39 | return null; | |
40 | } | |
41 | ||
42 | @Override | |
43 | public Object getParent(Object element) { | |
44 | return null; | |
45 | } | |
46 | ||
47 | @Override | |
48 | public boolean hasChildren(Object element) { | |
49 | return false; | |
50 | } | |
51 | ||
52 | @Override | |
53 | public Object[] getElements(Object inputElement) { | |
54 | if (inputElement instanceof Object[]) { | |
55 | return (Object[]) inputElement; | |
56 | } | |
57 | if (inputElement instanceof Collection) { | |
58 | return ((Collection<?>) inputElement).toArray(); | |
59 | } | |
60 | return new Object[0]; | |
61 | } | |
62 | ||
63 | } |