jpa/plugins/org.eclipse.jpt.core/src/org/eclipse/jpt/core/internal/context/orm/XmlTransientMapping.java

/*******************************************************************************
 * Copyright (c) 2007 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.orm;

import org.eclipse.jpt.core.internal.IMappingKeys;
import org.eclipse.jpt.core.internal.context.base.ITransientMapping;
import org.eclipse.jpt.core.internal.resource.orm.AttributeMapping;
import org.eclipse.jpt.core.internal.resource.orm.OrmFactory;
import org.eclipse.jpt.core.internal.resource.orm.Transient;
import org.eclipse.jpt.core.internal.resource.orm.TransientImpl;
import org.eclipse.jpt.core.internal.resource.orm.TypeMapping;


public class XmlTransientMapping extends XmlAttributeMapping<Transient> implements ITransientMapping
{
	
	protected XmlTransientMapping(XmlPersistentAttribute parent) {
		super(parent);
	}

	@Override
	protected void initializeOn(XmlAttributeMapping<? extends AttributeMapping> newMapping) {
		newMapping.initializeFromXmlTransientMapping(this);
	}

	@Override
	public int xmlSequence() {
		return 8;
	}

	public String getKey() {
		return IMappingKeys.TRANSIENT_ATTRIBUTE_MAPPING_KEY;
	}

	@Override
	public Transient addToResourceModel(TypeMapping typeMapping) {
		TransientImpl transientResource = OrmFactory.eINSTANCE.createTransientImpl();
		typeMapping.getAttributes().getTransients().add(transientResource);
		return transientResource;
	}
	
	@Override
	public void removeFromResourceModel(TypeMapping typeMapping) {
		typeMapping.getAttributes().getTransients().remove(this.attributeMapping());
		if (typeMapping.getAttributes().isAllFeaturesUnset()) {
			typeMapping.setAttributes(null);
		}
	}
	
	@Override
	public void initialize(Transient transientResource) {
		super.initialize(transientResource);
	}
	
	@Override
	public void update(Transient transientResource) {
		super.update(transientResource);
	}
}