jpa/plugins/org.eclipse.jpt.eclipselink.core/src/org/eclipse/jpt/eclipselink/core/internal/resource/elorm/translators/OneToOneTranslator.java

/*******************************************************************************
 * 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.eclipselink.core.internal.resource.elorm.translators;

import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.jpt.eclipselink.core.resource.elorm.EclipseLinkOrmFactory;
import org.eclipse.wst.common.internal.emf.resource.Translator;

public class OneToOneTranslator extends Translator
	implements EclipseLinkOrmXmlMapper
{
	private Translator[] children;	
	
	
	public OneToOneTranslator(String domNameAndPath, EStructuralFeature aFeature) {
		super(domNameAndPath, aFeature);
	}
	
	@Override
	public EObject createEMFObject(String nodeName, String readAheadName) {
		return EclipseLinkOrmFactory.eINSTANCE.createXmlOneToOneImpl();
	}

	@Override
	public Translator[] getChildren(Object target, int versionID) {
		if (this.children == null) {
			this.children = createChildren();
		}
		return this.children;
	}
		
	protected Translator[] createChildren() {
		return new Translator[] {
			createNameTranslator(),
			createTargetEntityTranslator(),
			createFetchTranslator(),
			createOptionalTranslator(),
			createMappedByTranslator(),
			createPrimaryKeyJoinColumnTranslator(),
			createJoinColumnTranslator(),
			createJoinTableTranslator(),
			createCascadeTranslator()
		};
	}
	
	private Translator createNameTranslator() {
		return new Translator(NAME, ECLIPSELINK_ORM_PKG.getXmlAttributeMapping_Name(), DOM_ATTRIBUTE);
	}
	
	private Translator createTargetEntityTranslator() {
		return new Translator(TARGET_ENTITY, ECLIPSELINK_ORM_PKG.getXmlRelationshipMapping_TargetEntity(), DOM_ATTRIBUTE);
	}
	
	private Translator createFetchTranslator() {
		return new Translator(FETCH, ECLIPSELINK_ORM_PKG.getXmlRelationshipMapping_Fetch(), DOM_ATTRIBUTE);
	}
	
	private Translator createOptionalTranslator() {
		return new Translator(OPTIONAL, ECLIPSELINK_ORM_PKG.getXmlSingleRelationshipMapping_Optional(), DOM_ATTRIBUTE);
	}
	
	private Translator createMappedByTranslator() {
		return new Translator(MAPPED_BY, ECLIPSELINK_ORM_PKG.getXmlOneToOne_MappedBy(), DOM_ATTRIBUTE);
	}
	
	private Translator createPrimaryKeyJoinColumnTranslator() {
		return new PrimaryKeyJoinColumnTranslator(PRIMARY_KEY_JOIN_COLUMN, ECLIPSELINK_ORM_PKG.getXmlOneToOne_PrimaryKeyJoinColumns());
	}
	
	private Translator createJoinColumnTranslator() {
		return new JoinColumnTranslator(JOIN_COLUMN, ECLIPSELINK_ORM_PKG.getXmlSingleRelationshipMapping_JoinColumns());
	}
	
	private Translator createJoinTableTranslator() {
		return new JoinTableTranslator(JOIN_TABLE, ECLIPSELINK_ORM_PKG.getXmlRelationshipMapping_JoinTable());
	}
		
	private Translator createCascadeTranslator() {
		return new CascadeTypeTranslator(CASCADE, ECLIPSELINK_ORM_PKG.getXmlRelationshipMapping_Cascade());
	}

}