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/*******************************************************************************
 * Copyright (c) 2007, 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.core;

import org.eclipse.core.resources.IFile;
import org.eclipse.jdt.core.ElementChangedEvent;
import org.eclipse.jpt.utility.model.Model;

/**
 * 
 * 
 * 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 ResourceModel extends Model
{
	/**
	 * Constant representing a Java resource type
	 * @see ResourceModel#getResourceType()
	 */
	static final String JAVA_RESOURCE_TYPE = "JAVA_RESOURCE_TYPE";
	
	/**
	 * Constant representing a persistence.xml resource type
	 * @see ResourceModel#getResourceType()
	 */
	static final String PERSISTENCE_RESOURCE_TYPE = "PERSISTENCE_RESOURCE_TYPE";
	
	/**
	 * Constant representing a mapping file (e.g. orm.xml) resource type
	 * @see ResourceModel#getResourceType()
	 */
	static final String ORM_RESOURCE_TYPE = "ORM_RESOURCE_TYPE";
	
	
	/**
	 * Return a unique identifier for all resource models of this type
	 */
	String getResourceType();
	
	/**
	 * Return the IFile that this resource model represents
	 */
	IFile getFile();
	
	void javaElementChanged(ElementChangedEvent event);
	
	/**
	 * Update the resource model from the underlying resource.
	 */
	void updateFromResource();

	
	void addResourceModelChangeListener(ResourceModelListener listener);
	
	void removeResourceModelChangeListener(ResourceModelListener listener);
	
	
	void dispose();
	
	/**
	 * Used to resolve type information that could be dependent on other files being added/removed.
	 */
	void resolveTypes();
}

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