/*******************************************************************************
 * Copyright (c) 2007 Oracle Corporation.
 * 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.jst.jsf.common.metadata.internal;

import org.eclipse.core.resources.IProject;

/**
 * Meta data model key descriptor used to lazily load a model when it is required
 *
 */
public class ModelKeyDescriptor {
	private final IProject project;
	private final String domain;
	private final String uri;
	private final String key;
	
	/**
	 * Constructor
	 * @param project
	 * @param domain
	 * @param uri
	 */
	public ModelKeyDescriptor(IProject project, String domain, String uri){
		this.project = project;
		this.domain = domain;
		this.uri = uri;
		String proj = project != null ? project.getName() : "Null"; //$NON-NLS-1$
		StringBuffer buf = new StringBuffer(proj);
		buf.append(":"); //$NON-NLS-1$
		buf.append(domain);
		buf.append(":"); //$NON-NLS-1$
		buf.append(uri);
		key = buf.toString();
	}
	
	/**
	 * @return domain id
	 */
	public final String getDomain(){
		return domain;
	}
	
	/**
	 * @return model uri
	 */
	public final String getUri(){
		return uri;
	}

	/**
	 * @return project
	 */
	public final IProject getProject(){
		return project;
	}
	
	/* (non-Javadoc)
	 * @see java.lang.Object#toString()
	 */
	public final String toString(){		
		return key;
	}
	
}