/*******************************************************************************
 * 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.core.context;

import org.eclipse.jpt.core.JpaStructureNode;
import org.eclipse.jpt.core.jpa2.StaticMetamodelGenerator;
import org.eclipse.jpt.core.resource.xml.JpaXmlResource;

/**
 * JPA mapping file (typically <code>orm.xml</code>).
 * <p>
 * Provisional API: This interface is part of an interim API that is still
 * under development and expected to change significantly before reaching
 * stability. It is available at this early stage to solicit feedback from
 * pioneering adopters on the understanding that any code that uses this API
 * will almost certainly be broken (repeatedly) as the API evolves.
 */
public interface MappingFile
	extends XmlContextNode, JpaStructureNode, StaticMetamodelGenerator
{
	/**
	 * Return the underlying xml resource
	 */
	JpaXmlResource getXmlResource();
	
	/**
	 * Return the root object of this mapping file
	 */
	MappingFileRoot getRoot();
	
	/**
	 * Return the PersistentType listed in this mapping file
	 * with the given fullyQualifiedTypeName.  Return null if none exists.
	 */
	PersistentType getPersistentType(String fullyQualifiedTypeName);
	
	
	// **************** updating **********************************************
	
	/**
	 * Update the MappingFile context model object to match the JpaXmlResource 
	 * resource model object. see {@link org.eclipse.jpt.core.JpaProject#update()}
	 */
	void update(JpaXmlResource mappingFileResource);
}