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/*******************************************************************************
* Copyright (c) 2000, 2009 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.core.resources;
import java.util.EventListener;
/**
* An interface to be implemented by objects interested in path variable
* creation, removal and value change events.
*
* <p>Clients may implement this interface.</p>
*
* @since 2.1
*/
public interface IPathVariableChangeListener extends EventListener {
/**
* Notification that a path variable has changed.
* <p>
* This method is called when a path variable is added, removed or has its value
* changed in the observed <code>IPathVariableManager</code> object.
* </p>
*
* @param event the path variable change event object describing which variable
* changed and how
* @see IPathVariableManager#addChangeListener(IPathVariableChangeListener)
* @see IPathVariableManager#removeChangeListener(IPathVariableChangeListener)
* @see IPathVariableChangeEvent
*/
void pathVariableChanged(IPathVariableChangeEvent event);
}