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/*******************************************************************************
* Copyright (c) 2000, 2006 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.core;
import org.eclipse.debug.core.model.IExpression;
/**
* An expression listener is notified of expression additions,
* removals, and changes. Listeners register and unregister with the
* expression manager.
* <p>
* Clients may implement this interface.
* </p>
* @see IExpressionManager
* @since 2.0
*/
public interface IExpressionListener {
/**
* Notifies this listener that the given expression has been added
* to the expression manager.
*
* @param expression the added expression
*/
public void expressionAdded(IExpression expression);
/**
* Notifies this listener that the given expression has been removed
* from the expression manager.
*
* @param expression the removed expression
*/
public void expressionRemoved(IExpression expression);
/**
* Notifies this listener that the given expression has
* changed.
*
* @param expression the changed expression
*/
public void expressionChanged(IExpression expression);
}
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