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Java > Open Source Codes > org > eclipse > jdt > internal > debug > ui > monitors > ContendedMonitorContentProvider


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.jdt.internal.debug.ui.monitors;
12
13 import org.eclipse.core.runtime.CoreException;
14 import org.eclipse.debug.internal.ui.viewers.model.provisional.IPresentationContext;
15 import org.eclipse.debug.internal.ui.viewers.model.provisional.IViewerUpdate;
16
17 /**
18  * Content provider for a contended monitor.
19  *
20  * @since 3.3
21  */
22 public class ContendedMonitorContentProvider extends JavaElementContentProvider {
23
24     /* (non-Javadoc)
25      * @see org.eclipse.debug.internal.ui.model.elements.ElementContentProvider#getChildCount(java.lang.Object, org.eclipse.debug.internal.ui.viewers.model.provisional.IPresentationContext, org.eclipse.core.runtime.IProgressMonitor)
26      */
27     protected int getChildCount(Object JavaDoc element, IPresentationContext context, IViewerUpdate monitor) throws CoreException {
28         if (((JavaContendedMonitor)element).getOwningThread() != null) {
29             return 1;
30         }
31         return 0;
32     }
33
34     /* (non-Javadoc)
35      * @see org.eclipse.debug.internal.ui.model.elements.ElementContentProvider#getChildren(java.lang.Object, int, int, org.eclipse.debug.internal.ui.viewers.model.provisional.IPresentationContext, org.eclipse.core.runtime.IProgressMonitor)
36      */
37     protected Object JavaDoc[] getChildren(Object JavaDoc parent, int index, int length, IPresentationContext context, IViewerUpdate monitor) throws CoreException {
38         JavaOwningThread owningThread= ((JavaContendedMonitor)parent).getOwningThread();
39         if (owningThread == null) {
40             return EMPTY;
41         }
42         return new Object JavaDoc[]{owningThread};
43     }
44
45 }
46
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