/*******************************************************************************
 * Copyright (c) 2006, 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.internal.context.java;

import java.util.Iterator;
import org.eclipse.jpt.core.MappingKeys;
import org.eclipse.jpt.core.context.java.JavaManyToManyMapping;
import org.eclipse.jpt.core.context.java.JavaManyToManyRelationshipReference;
import org.eclipse.jpt.core.context.java.JavaPersistentAttribute;
import org.eclipse.jpt.core.context.java.JavaRelationshipReference;
import org.eclipse.jpt.core.resource.java.JPA;
import org.eclipse.jpt.core.resource.java.ManyToManyAnnotation;
import org.eclipse.jpt.utility.internal.iterators.ArrayIterator;


public abstract class AbstractJavaManyToManyMapping
	extends AbstractJavaMultiRelationshipMapping<ManyToManyAnnotation>
	implements JavaManyToManyMapping
{
	protected AbstractJavaManyToManyMapping(JavaPersistentAttribute parent) {
		super(parent);
	}
	
	@Override
	protected JavaRelationshipReference buildRelationshipReference() {
		return new GenericJavaManyToManyRelationshipReference(this);
	}
		
	public String getAnnotationName() {
		return ManyToManyAnnotation.ANNOTATION_NAME;
	}
	
	public Iterator<String> supportingAnnotationNames() {
		return new ArrayIterator<String>(
			JPA.ORDER_BY,
			JPA.MAP_KEY,
			JPA.JOIN_TABLE);
	}
	
	@Override
	public ManyToManyAnnotation getMappingAnnotation() {
		return super.getMappingAnnotation();
	}
	
	public String getKey() {
		return MappingKeys.MANY_TO_MANY_ATTRIBUTE_MAPPING_KEY;
	}
	
	@Override
	public JavaManyToManyRelationshipReference getRelationshipReference() {
		return (JavaManyToManyRelationshipReference) super.getRelationshipReference();
	}
}