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/*******************************************************************************
* Copyright (c) 2006, 2011 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
* Wind River - Pawel Piech - Need a clarification on usage of IElement*Provider interfaces with update arrays (Bug 213609)
*******************************************************************************/
package org.eclipse.debug.internal.ui.viewers.model.provisional;
/**
* Provides content for an element in a tree model viewer.
* <p>
* Note: provider methods are called in the Display thread of the viewer.
* To avoid blocking the UI, long running operations should be performed
* asynchronously.
* </p>
*
* @since 3.3
*/
public interface IElementContentProvider {
/**
* Updates the number of children for the given parent elements in the
* specified requests.
*
* @param updates Each update specifies an element to update and provides
* a store for the result. The update array is guaranteed to have at least
* one element, and for all updates to have the same presentation context.
*/
public void update(IChildrenCountUpdate[] updates);
/**
* Updates children as requested by the given updates.
*
* @param updates Each update specifies children to update and stores results.
* The update array is guaranteed to have at least one element, and for
* all updates to have the same presentation context.
*/
public void update(IChildrenUpdate[] updates);
/**
* Updates whether elements have children.
*
* @param updates Each update specifies an element to update and provides
* a store for the result. The update array is guaranteed to have at least
* one element, and for all updates to have the same presentation context.
*/
public void update(IHasChildrenUpdate[] updates);
}
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