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/*******************************************************************************
* Copyright (c) 2000, 2015 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.ui;
/**
* An <code>IWorkingSetUpdater</code> can be used to dynamically update the
* content of a working set.
* <p>
* A working set updater manages a set of working sets. It is contributed via
* the attribute <code>updaterClass</code> of the <code>
* org.eclipse.ui.workingSets</code> extension point. Extensions of this
* extension point must therefore implement this interface.
* </p>
* <p>
* API under construction and subject to change at any time.
* </p>
*
* @since 3.1
*/
public interface IWorkingSetUpdater {
/**
* Adds a working set to this updater.
*
* @param workingSet the working set to add to this updater
*/
void add(IWorkingSet workingSet);
/**
* Removes a working set from this updater.
*
* @param workingSet the working set to remove
*
* @return <code>true</code> if the updater changed (e.g. the element got
* removed)
*/
boolean remove(IWorkingSet workingSet);
/**
* Returns <code>true</code> if the updater contains the given working set;
* otherwise <code>false</code> is returned.
*
* @param workingSet the parameter to check
*
* @return whether the updater contains the given working set
*/
boolean contains(IWorkingSet workingSet);
/**
* Disposes this working set updater. Implementations of this method typically
* remove listeners from some delta providers.
*/
void dispose();
}
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