/*******************************************************************************
* Copyright (c) 2015 Obeo.
* 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:
* Obeo - initial API and implementation
*******************************************************************************/
package org.eclipse.eef.properties.ui.legacy.internal.extension;
/**
* The registry used to track the descriptors of the extensions.
*
* @author sbegaudeau
*/
public interface IItemRegistry {
/**
* Adds the given {@link IItemDescriptor} to the registry.
*
* @param descriptor
* The descriptor
* @return The previous {@link IItemDescriptor} with the same identifier, or null if no registered
* {@link IItemDescriptor} had the same identifier
*/
IItemDescriptor add(IItemDescriptor descriptor);
/**
* Removes the {@link IItemDescriptor} with the given identifier.
*
* @param id
* The identifier
* @return True if the element was removed, otherwise false
*/
boolean remove(String id);
/**
* Clears the registry.
*/
void clear();
}