jpa/plugins/org.eclipse.jpt.jpa.eclipselink.core/src/org/eclipse/jpt/jpa/eclipselink/core/internal/EclipseLink2_0JpaPlatformFactory.java

/*******************************************************************************
* Copyright (c) 2009, 2011 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.eclipselink.core.internal;

import org.eclipse.jpt.common.core.AnnotationProvider;
import org.eclipse.jpt.jpa.core.JpaFacet;
import org.eclipse.jpt.jpa.core.JpaPlatform;
import org.eclipse.jpt.jpa.core.JpaPlatformFactory;
import org.eclipse.jpt.jpa.core.JpaPlatformVariation;
import org.eclipse.jpt.jpa.core.internal.GenericJpaPlatform;
import org.eclipse.jpt.jpa.core.internal.JpaAnnotationProvider;
import org.eclipse.jpt.jpa.core.internal.jpa2.Generic2_0JpaAnnotationDefinitionProvider;
import org.eclipse.jpt.jpa.eclipselink.core.JptJpaEclipseLinkCorePlugin;
import org.eclipse.jpt.jpa.eclipselink.core.internal.EclipseLinkJpaPlatformFactory.EclipseLinkVersion;

/**
 * All the state in the JPA platform should be "static" (i.e. unchanging once
 * it is initialized).
 */
public class EclipseLink2_0JpaPlatformFactory
	implements JpaPlatformFactory
{
	/**
	 * zero-argument constructor
	 */
	public EclipseLink2_0JpaPlatformFactory() {
		super();
	}

	public JpaPlatform buildJpaPlatform(String id) {
		return new GenericJpaPlatform(
			id,
			buildJpaVersion(),
			new EclipseLink2_0JpaFactory(),
			this.buildAnnotationProvider(),
			EclipseLink2_0JpaPlatformProvider.instance(),
			this.buildJpaVariation(),
			EclipseLink2_0JpaJpqlQueryHelper.instance());
	}

	protected JpaPlatform.Version buildJpaVersion() {
		return new EclipseLinkVersion(
				JptJpaEclipseLinkCorePlugin.ECLIPSELINK_PLATFORM_VERSION_2_0,
				JpaFacet.VERSION_2_0.getVersionString());
	}

	protected AnnotationProvider buildAnnotationProvider() {
		return new JpaAnnotationProvider(
			Generic2_0JpaAnnotationDefinitionProvider.instance(),
			EclipseLink2_0JpaAnnotationDefinitionProvider.instance());
	}

	protected JpaPlatformVariation buildJpaVariation() {
		return new JpaPlatformVariation() {
			public Supported getTablePerConcreteClassInheritanceIsSupported() {
				return Supported.YES;
			}
			public boolean isJoinTableOverridable() {
				return true;
			}
		};
	}

}