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/*******************************************************************************
 * Copyright (c) 2000, 2007 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.help.internal.workingset;

import java.io.*;

/**
 * The working set manager stores help working sets. Working sets are persisted
 * whenever one is added or removed.
 * 
 * @since 3.0
 */
public interface IHelpWorkingSetManager {

	public AdaptableTocsArray getRoot();
	/**
	 * Adds a new working set and saves it
	 */
	public void addWorkingSet(WorkingSet workingSet) throws IOException;

	/**
	 * Creates a new working set
	 */
	public WorkingSet createWorkingSet(String name,
			AdaptableHelpResource[] elements);

	/**
	 * Returns a working set by name
	 *  
	 */
	public WorkingSet getWorkingSet(String name);

	/**
	 * Implements IWorkingSetManager.
	 * 
	 * @see org.eclipse.ui.IWorkingSetManager#getWorkingSets()
	 */
	public WorkingSet[] getWorkingSets();

	/**
	 * Removes specified working set
	 */
	public void removeWorkingSet(WorkingSet workingSet);

	/**
	 * Persists all working sets. Should only be called by the webapp working
	 * set dialog.
	 * 
	 * @param changedWorkingSet
	 *            the working set that has changed
	 */
	public void workingSetChanged(WorkingSet changedWorkingSet)
			throws IOException;

	public AdaptableToc getAdaptableToc(String href);

	public AdaptableTopic getAdaptableTopic(String id);

	public String getCurrentWorkingSet();

	public void setCurrentWorkingSet(String workingSet);
}

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