http://www.eclipse.org/platform: Extension Registry Support (Eclipse Foundation) 
Copyright (c) 2007, 2008 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) 2007, 2008 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.runtime;

import java.util.EventListener;


A registry event listener is notified of changes to extension points. Changes
include modifications of extension points and their extensions. Listeners will
only receive a notification if the extension point they are registered for is
modified. (Which includes modifications of extensions under the extension point.)


This interface can be used without OSGi running.


Clients may implement this interface.



See Also:
  • addListener.addListener(IRegistryEventListener, String)
Since:3.4
/**
 * A registry event listener is notified of changes to extension points. Changes
 * include modifications of extension points and their extensions. Listeners will
 * only receive a notification if the extension point they are registered for is
 * modified. (Which includes modifications of extensions under the extension point.)
 * <p>
 * This interface can be used without OSGi running.
 * </p><p>
 * Clients may implement this interface.
 * </p>
 * @see IExtensionRegistry#addListener(IRegistryEventListener, String)
 * @since 3.4
 */
public interface IRegistryEventListener extends EventListener {

	
Notifies this listener that extensions were added to the registry.


The extensions supplied as the argument are valid only for the duration of the
invocation of this method.



Params:
  • extensions – extensions added to the registry
/**
	 * Notifies this listener that extensions were added to the registry.
	 * <p>
	 * The extensions supplied as the argument are valid only for the duration of the
	 * invocation of this method.
	 * </p>
	 * @param extensions extensions added to the registry
	 */
	public void added(IExtension[] extensions);

	
Notifies this listener that extensions were removed from the registry.


The extensions supplied as the argument are valid only for the duration of the
invocation of this method.



Params:
  • extensions – extensions removed from the registry
/**
	 * Notifies this listener that extensions were removed from the registry.
	 * <p>
	 * The extensions supplied as the argument are valid only for the duration of the
	 * invocation of this method.
	 * </p>
	 * @param extensions extensions removed from the registry
	 */
	public void removed(IExtension[] extensions);

	
Notifies this listener that extension points were added to the registry.


The extension points supplied as the argument are valid only for the duration of the
invocation of this method.



Params:
  • extensionPoints – extension points added to the registry
/**
	 * Notifies this listener that extension points were added to the registry.
	 * <p>
	 * The extension points supplied as the argument are valid only for the duration of the
	 * invocation of this method.
	 * </p>
	 * @param extensionPoints extension points added to the registry
	 */
	public void added(IExtensionPoint[] extensionPoints);

	
Notifies this listener that extension points were removed from the registry.


The extension points supplied as the argument are valid only for the duration of the
invocation of this method.



Params:
  • extensionPoints – extension points removed from the registry
/**
	 * Notifies this listener that extension points were removed from the registry.
	 * <p>
	 * The extension points supplied as the argument are valid only for the duration of the
	 * invocation of this method.
	 * </p>
	 * @param extensionPoints extension points removed from the registry
	 */
	public void removed(IExtensionPoint[] extensionPoints);

}