| /******************************************************************************* |
| * Copyright (c) 2005, 2007 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.debug.internal.ui.viewers.update; |
| |
| import org.eclipse.debug.core.DebugEvent; |
| import org.eclipse.debug.core.model.IExpression; |
| import org.eclipse.debug.core.model.IVariable; |
| |
| /** |
| * @since 3.2 |
| * |
| */ |
| public class DefaultExpressionModelProxy extends EventHandlerModelProxy { |
| |
| private IExpression fExpression; |
| |
| public DefaultExpressionModelProxy(IExpression expression) { |
| fExpression = expression; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.debug.internal.ui.viewers.update.EventHandlerModelProxy#dispose() |
| */ |
| public synchronized void dispose() { |
| super.dispose(); |
| fExpression = null; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.debug.internal.ui.viewers.update.EventHandlerModelProxy#createEventHandlers() |
| */ |
| protected DebugEventHandler[] createEventHandlers() { |
| return new DebugEventHandler[]{new ExpressionEventHandler(this)}; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.debug.internal.ui.viewers.update.EventHandlerModelProxy#containsEvent(org.eclipse.debug.core.DebugEvent) |
| */ |
| protected boolean containsEvent(DebugEvent event) { |
| // handles change events from expressions and debug targets |
| if (event.getSource().equals(fExpression) || event.getSource().equals(fExpression.getDebugTarget())) { |
| return true; |
| } |
| // have to consider change events on variables |
| return event.getKind() == DebugEvent.CHANGE && event.getSource() instanceof IVariable; |
| } |
| |
| /** |
| * Returns this model's expression, or <code>null</code> if disposed. |
| * |
| * @return expression or <code>null</code> |
| */ |
| protected IExpression getExpression() { |
| return fExpression; |
| } |
| |
| } |