common/plugins/org.eclipse.jpt.common.ui/src/org/eclipse/jpt/common/ui/internal/jface/ItemStructuredStateProviderManager.java

/*******************************************************************************
 * Copyright (c) 2008, 2012 Oracle. 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:
 *     Oracle - initial API and implementation
 ******************************************************************************/
package org.eclipse.jpt.common.ui.internal.jface;

import org.eclipse.jface.viewers.StructuredViewer;
import org.eclipse.jpt.common.ui.jface.ItemExtendedLabelProviderFactory;
import org.eclipse.jpt.common.ui.jface.ItemStructuredContentProvider;
import org.eclipse.jpt.common.ui.jface.ItemStructuredContentProviderFactory;

/**
 * @see AbstractItemStructuredStateProviderManager
 */
public class ItemStructuredStateProviderManager
	extends AbstractItemStructuredStateProviderManager<StructuredViewer, ItemStructuredContentProvider>
{
	/**
	 * Never <code>null</code>.
	 */
	protected final ItemStructuredContentProviderFactory itemContentProviderFactory;


	public ItemStructuredStateProviderManager(ItemStructuredContentProviderFactory itemContentProviderFactory) {
		this(itemContentProviderFactory, null);
	}

	public ItemStructuredStateProviderManager(ItemStructuredContentProviderFactory itemContentProviderFactory, ItemExtendedLabelProviderFactory itemLabelProviderFactory) {
		super(itemLabelProviderFactory);
		if (itemContentProviderFactory == null) {
			throw new NullPointerException();
		}
		this.itemContentProviderFactory = itemContentProviderFactory;
	}

	@Override
	protected ItemStructuredContentProvider buildItemContentProvider(Object item) {
		return this.itemContentProviderFactory.buildProvider(item, this);
	}
}