/*******************************************************************************
 *  Copyright (c) 2007 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.ui.internal.java.structure;

import java.util.Collection;
import org.eclipse.emf.common.notify.AdapterFactory;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.edit.provider.IEditingDomainItemProvider;
import org.eclipse.emf.edit.provider.IItemLabelProvider;
import org.eclipse.emf.edit.provider.IStructuredItemContentProvider;
import org.eclipse.emf.edit.provider.ITreeItemContentProvider;
import org.eclipse.emf.edit.provider.ItemProviderAdapter;
import org.eclipse.emf.edit.provider.ViewerNotification;
import org.eclipse.jpt.core.internal.content.java.JpaCompilationUnit;
import org.eclipse.jpt.core.internal.content.java.JpaJavaPackage;

public class JavaCompilationUnitItemProvider extends ItemProviderAdapter
	implements IEditingDomainItemProvider, 
		IStructuredItemContentProvider,
		ITreeItemContentProvider, 
		IItemLabelProvider
{
	public JavaCompilationUnitItemProvider(AdapterFactory adapterFactory) {
		super(adapterFactory);
	}
	
	@Override
	protected Collection<? extends EStructuralFeature> getChildrenFeatures(Object object) {
		if (this.childrenFeatures == null) {
			super.getChildrenFeatures(object);
			this.childrenFeatures.add(JpaJavaPackage.Literals.JPA_COMPILATION_UNIT__TYPES);
		}
		return this.childrenFeatures;
	}
	
	@Override
	public void notifyChanged(Notification notification) {
		updateChildren(notification);

		switch (notification.getFeatureID(JpaCompilationUnit.class)) {
			case JpaJavaPackage.JPA_COMPILATION_UNIT__TYPES:
				fireNotifyChanged(
					new ViewerNotification(
						notification, notification.getNotifier(), true, false));
			return;
		}
		
		super.notifyChanged(notification);
	}
}