jaxb/plugins/org.eclipse.jpt.jaxb.eclipselink.core/src/org/eclipse/jpt/jaxb/eclipselink/core/internal/resource/java/XmlKeyAnnotationDefinition.java

/*******************************************************************************
 *  Copyright (c) 2012  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.jaxb.eclipselink.core.internal.resource.java;

import org.eclipse.jdt.core.IAnnotation;
import org.eclipse.jpt.common.core.resource.java.Annotation;
import org.eclipse.jpt.common.core.resource.java.AnnotationDefinition;
import org.eclipse.jpt.common.core.resource.java.JavaResourceAnnotatedElement;
import org.eclipse.jpt.common.core.utility.jdt.AnnotatedElement;
import org.eclipse.jpt.jaxb.eclipselink.core.internal.resource.java.binary.BinaryXmlKeyAnnotation;
import org.eclipse.jpt.jaxb.eclipselink.core.internal.resource.java.source.SourceXmlKeyAnnotation;
import org.eclipse.jpt.jaxb.eclipselink.core.resource.java.ELJaxb;


public class XmlKeyAnnotationDefinition
		implements AnnotationDefinition {
	
	// singleton
	private static final AnnotationDefinition INSTANCE = new XmlKeyAnnotationDefinition();
	
	
	/**
	 * Return the singleton.
	 */
	public static AnnotationDefinition instance() {
		return INSTANCE;
	}
	
	
	/**
	 * Ensure single instance.
	 */
	private XmlKeyAnnotationDefinition() {
		super();
	}
	
	
	public String getAnnotationName() {
		return ELJaxb.XML_KEY;
	}
	
	public Annotation buildAnnotation(JavaResourceAnnotatedElement parent, AnnotatedElement annotatedElement) {
		return new SourceXmlKeyAnnotation(parent, annotatedElement);
	}
	
	public Annotation buildNullAnnotation(JavaResourceAnnotatedElement parent) {
		throw new UnsupportedOperationException();
	}
	
	public Annotation buildAnnotation(JavaResourceAnnotatedElement parent, IAnnotation jdtAnnotation) {
		return new BinaryXmlKeyAnnotation(parent, jdtAnnotation);
	}
}