Copyright (c) 2000, 2006 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
/*******************************************************************************
 * Copyright (c) 2000, 2006 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.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.

Clients may implement this interface.

See Also:
IExpressionManager
Since:
2.0/**
 * 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.
Params:
expression – the added expression/**
	 * Notifies this listener that the given expression has been added
	 * to the expression manager.
	 *
	 * @param expression the added expression
	 */
	void expressionAdded(IExpression expression);
	
Notifies this listener that the given expression has been removed
from the expression manager.
Params:
expression – the removed expression/**
	 * Notifies this listener that the given expression has been removed
	 * from the expression manager.
	 *
	 * @param expression the removed expression
	 */
	void expressionRemoved(IExpression expression);

	
Notifies this listener that the given expression has
changed.
Params:
expression – the changed expression/**
	 * Notifies this listener that the given expression has
	 * changed.
	 *
	 * @param expression the changed expression
	 */
	void expressionChanged(IExpression expression);

}