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/*******************************************************************************
* Copyright (c) 2003, 2004 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.core.runtime;
/**
* Registry change events describe changes to the extension registry.
* <p>
* This interface is not intended to be implemented by clients.
* </p>
* @since 3.0
* @see IExtensionRegistry
* @see IRegistryChangeListener
*/
public interface IRegistryChangeEvent {
/**
* Returns all extension deltas for all hosts. Returns an empty array if there are
* no deltas in this event.
*
* @return all extension deltas
*/
public IExtensionDelta[] getExtensionDeltas();
/**
* Returns all extension deltas for the given namespace. Returns an empty array if there are
* no deltas in this event for any extension points provided in the given namespace.
*
* @param namespace the namespace for the extension deltas
* @return all extension deltas for the given namespace
*/
public IExtensionDelta[] getExtensionDeltas(String namespace);
/**
* Returns all the extension deltas for the given namespace and extension point. Returns an
* empty array if there are no deltas in this event for the given extension point.
*
* @param namespace the namespace for the extension point
* @param extensionPoint the simple identifier of the
* extension point (e.g. <code>"builders"</code>)
* @return all extension deltas for the given extension point
*/
public IExtensionDelta[] getExtensionDeltas(String namespace, String extensionPoint);
/**
* Returns the delta for the given namespace, extension point and extension.
* Returns <code>null</code> if none exists in this event.
*
* @param namespace the namespace for the extension point
* @param extensionPoint the simple identifier of the
* extension point (e.g. <code>"builders"</code>)
* @param extension the unique identifier of the extension
* @return the extension delta, or <code>null</code>
*/
public IExtensionDelta getExtensionDelta(String namespace, String extensionPoint, String extension);
}
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