jpa/plugins/org.eclipse.jpt.ui/src/org/eclipse/jpt/ui/internal/structure/GeneralJpaMappingItemContentProviderFactory.java

/*******************************************************************************
 * Copyright (c) 2008 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.structure;

import org.eclipse.jpt.core.context.PersistentAttribute;
import org.eclipse.jpt.core.context.PersistentType;
import org.eclipse.jpt.ui.internal.jface.DelegatingTreeContentAndLabelProvider;
import org.eclipse.jpt.ui.internal.platform.generic.PersistentAttributeItemContentProvider;
import org.eclipse.jpt.ui.jface.DelegatingContentAndLabelProvider;
import org.eclipse.jpt.ui.jface.TreeItemContentProvider;
import org.eclipse.jpt.ui.jface.TreeItemContentProviderFactory;

public abstract class GeneralJpaMappingItemContentProviderFactory
	implements TreeItemContentProviderFactory
{
	public TreeItemContentProvider buildItemContentProvider(
			Object item, DelegatingContentAndLabelProvider contentAndLabelProvider) {
		DelegatingTreeContentAndLabelProvider treeContentProvider = (DelegatingTreeContentAndLabelProvider) contentAndLabelProvider;
		if (item instanceof PersistentType) {
			return buildPersistentTypeItemContentProvider((PersistentType) item, treeContentProvider);
		}
		else if (item instanceof PersistentAttribute) {
			return new PersistentAttributeItemContentProvider((PersistentAttribute) item, treeContentProvider);
		}
		return null;
	}
	
	protected abstract TreeItemContentProvider buildPersistentTypeItemContentProvider(PersistentType persistentType, DelegatingTreeContentAndLabelProvider treeContentProvider);
}