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Java > Open Source Codes > org > eclipse > debug > internal > ui > model > elements > RegisterGroupContentProvider


1 /*******************************************************************************
2  * Copyright (c) 2006, 2007 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 package org.eclipse.debug.internal.ui.model.elements;
12
13 import org.eclipse.core.runtime.CoreException;
14 import org.eclipse.debug.core.model.IRegisterGroup;
15 import org.eclipse.debug.internal.ui.viewers.model.provisional.IPresentationContext;
16 import org.eclipse.debug.internal.ui.viewers.model.provisional.IViewerUpdate;
17 import org.eclipse.debug.ui.IDebugUIConstants;
18
19 /**
20  * Register group content provider.
21  *
22  * @since 3.3
23  */
24 public class RegisterGroupContentProvider extends ElementContentProvider {
25
26     protected int getChildCount(Object JavaDoc element, IPresentationContext context, IViewerUpdate monitor) throws CoreException {
27         return ((IRegisterGroup)element).getRegisters().length;
28     }
29
30     protected Object JavaDoc[] getChildren(Object JavaDoc parent, int index, int length, IPresentationContext context, IViewerUpdate monitor) throws CoreException {
31         return getElements(((IRegisterGroup)parent).getRegisters(), index, length);
32     }
33     
34     protected boolean hasChildren(Object JavaDoc element, IPresentationContext context, IViewerUpdate monitor) throws CoreException {
35         return ((IRegisterGroup)element).hasRegisters();
36     }
37
38     protected boolean supportsContextId(String JavaDoc id) {
39         return IDebugUIConstants.ID_REGISTER_VIEW.equals(id);
40     }
41
42 }
43
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