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/*******************************************************************************
* Copyright (c) 2009, 2010 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.jpa.core.context.orm;
import org.eclipse.emf.ecore.EFactory;
import org.eclipse.jpt.jpa.core.MappingKeys;
import org.eclipse.jpt.jpa.core.resource.orm.XmlAttributeMapping;
import org.eclipse.jpt.jpa.core.resource.orm.XmlNullAttributeMapping;
/**
* Provisional API: This interface is part of an interim API that is still
* under development and expected to change significantly before reaching
* stability. It is available at this early stage to solicit feedback from
* pioneering adopters on the understanding that any code that uses this API
* will almost certainly be broken (repeatedly) as the API evolves.
*
* @version 2.3
* @since 2.3
*/
public class UnsupportedOrmAttributeMappingDefinition
implements OrmAttributeMappingDefinition
{
// singleton
private static final OrmAttributeMappingDefinition INSTANCE =
new UnsupportedOrmAttributeMappingDefinition();
/**
* Return the singleton.
*/
public static OrmAttributeMappingDefinition instance() {
return INSTANCE;
}
/**
* Enforce singleton usage
*/
private UnsupportedOrmAttributeMappingDefinition() {
super();
}
public String getKey() {
return MappingKeys.NULL_ATTRIBUTE_MAPPING_KEY;
}
public XmlAttributeMapping buildResourceMapping(EFactory factory) {
throw new UnsupportedOperationException();
}
public OrmAttributeMapping buildContextMapping(OrmPersistentAttribute parent, XmlAttributeMapping resourceMapping, OrmXmlContextNodeFactory factory) {
return factory.buildUnsupportedOrmAttributeMapping(parent, (XmlNullAttributeMapping) resourceMapping);
}
}
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