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Java > Open Source Codes > org > eclipse > jdt > internal > debug > core > JavaDebugPropertyTester


1 /*******************************************************************************
2  * Copyright (c) 2000, 2005 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.core;
12
13 import org.eclipse.core.expressions.PropertyTester;
14 import org.eclipse.debug.core.DebugException;
15 import org.eclipse.debug.core.model.IStackFrame;
16 import org.eclipse.jdt.debug.core.IJavaStackFrame;
17
18 /**
19  * Tests properties for java debug elements
20  */
21 public class JavaDebugPropertyTester extends PropertyTester {
22
23     /* (non-Javadoc)
24      * @see org.eclipse.core.expressions.IPropertyTester#test(java.lang.Object, java.lang.String, java.lang.Object[], java.lang.Object)
25      */
26     public boolean test(Object JavaDoc receiver, String JavaDoc property, Object JavaDoc[] args, Object JavaDoc expectedValue) {
27         if (property.equals("isMultiStrata")) { //$NON-NLS-1$
28 if (receiver instanceof IStackFrame) {
29                 IJavaStackFrame frame = (IJavaStackFrame) ((IStackFrame)receiver).getAdapter(IJavaStackFrame.class);
30                 if (frame != null) {
31                     try {
32                         return frame.getReferenceType().getAvailableStrata().length > 1;
33                     } catch (DebugException e) {
34                     }
35                 }
36             }
37         }
38         return false;
39     }
40
41 }
42
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