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/*******************************************************************************
 * Copyright (c) 2008, 2009 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.jpa.ui.internal.platform.generic;

import java.util.ListIterator;

import org.eclipse.jpt.common.ui.internal.jface.AbstractTreeItemContentProvider;
import org.eclipse.jpt.common.ui.internal.jface.DelegatingTreeContentAndLabelProvider;
import org.eclipse.jpt.common.utility.internal.model.value.ListAspectAdapter;
import org.eclipse.jpt.common.utility.internal.model.value.ListCollectionValueModelAdapter;
import org.eclipse.jpt.common.utility.internal.model.value.PropertyAspectAdapter;
import org.eclipse.jpt.common.utility.model.value.CollectionValueModel;
import org.eclipse.jpt.jpa.core.context.JpaRootContextNode;
import org.eclipse.jpt.jpa.core.context.persistence.Persistence;
import org.eclipse.jpt.jpa.core.context.persistence.PersistenceUnit;
import org.eclipse.jpt.jpa.core.context.persistence.PersistenceXml;

public class PersistenceXmlItemContentProvider
	extends AbstractTreeItemContentProvider<PersistenceUnit>
{
	public PersistenceXmlItemContentProvider(
			PersistenceXml persistenceXml, DelegatingTreeContentAndLabelProvider contentProvider) {
		super(persistenceXml, contentProvider);
	}
	
	@Override
	public PersistenceXml getModel() {
		return (PersistenceXml) super.getModel();
	}
	
	@Override
	public JpaRootContextNode getParent() {
		return (JpaRootContextNode) getModel().getParent();
	}
	
	@Override
	protected CollectionValueModel<PersistenceUnit> buildChildrenModel() {
		return new ListCollectionValueModelAdapter<PersistenceUnit>(
		new ListAspectAdapter<Persistence, PersistenceUnit>(
				new PropertyAspectAdapter<PersistenceXml, Persistence>(
						PersistenceXml.PERSISTENCE_PROPERTY, getModel()) {
					@Override
					protected Persistence buildValue_() {
						return subject.getPersistence();
					}
				},
				Persistence.PERSISTENCE_UNITS_LIST) {
			@Override
			protected ListIterator<PersistenceUnit> listIterator_() {
				return subject.persistenceUnits();
			}
		});
	}
}