| /******************************************************************************* |
| * Copyright (c) 2009 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.internal; |
| |
| import java.util.Comparator; |
| 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.jpa1.GenericJpaFactory; |
| import org.eclipse.wst.common.project.facet.core.DefaultVersionComparator; |
| |
| /** |
| * All the state in the JPA platform should be "static" (i.e. unchanging once |
| * it is initialized). |
| */ |
| public class GenericJpaPlatformFactory |
| implements JpaPlatformFactory |
| { |
| /** |
| * zero-argument constructor |
| */ |
| public GenericJpaPlatformFactory() { |
| super(); |
| } |
| |
| public JpaPlatform buildJpaPlatform(String id) { |
| return new GenericJpaPlatform( |
| id, |
| this.buildJpaVersion(), |
| new GenericJpaFactory(), |
| new GenericJpaAnnotationProvider(GenericJpaAnnotationDefinitionProvider.instance()), |
| GenericJpaPlatformProvider.instance(), |
| this.buildJpaPlatformVariation()); |
| } |
| |
| |
| private JpaPlatform.Version buildJpaVersion() { |
| return new SimpleVersion(JpaFacet.VERSION_1_0.getVersionString()); |
| } |
| |
| protected JpaPlatformVariation buildJpaPlatformVariation() { |
| return new JpaPlatformVariation() { |
| public Supported getTablePerConcreteClassInheritanceIsSupported() { |
| return Supported.MAYBE; |
| } |
| public boolean isJoinTableOverridable() { |
| return false; |
| } |
| }; |
| } |
| |
| |
| public static class SimpleVersion implements JpaPlatform.Version { |
| protected final String jpaVersion; |
| |
| public static final Comparator<String> JPA_VERSION_COMPARATOR = new DefaultVersionComparator(); |
| |
| public SimpleVersion(String jpaVersion) { |
| super(); |
| this.jpaVersion = jpaVersion; |
| } |
| |
| /** |
| * The generic platform's version is the same as the JPA version. |
| */ |
| public String getVersion() { |
| return this.getJpaVersion(); |
| } |
| |
| public String getJpaVersion() { |
| return this.jpaVersion; |
| } |
| |
| /** |
| * For now, generic platforms are backward-compatible. |
| */ |
| public boolean isCompatibleWithJpaVersion(String version) { |
| return JPA_VERSION_COMPARATOR.compare(this.jpaVersion, version) >= 0; |
| } |
| |
| @Override |
| public String toString() { |
| return "JPA version: " + this.getJpaVersion(); //$NON-NLS-1$ |
| } |
| |
| } |
| |
| } |