| /******************************************************************************* |
| * Copyright (c) 2008, 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.eclipselink.core.internal.context.java; |
| |
| import org.eclipse.jpt.core.JpaFactory; |
| import org.eclipse.jpt.core.context.java.DefaultJavaAttributeMappingProvider; |
| import org.eclipse.jpt.core.context.java.JavaAttributeMapping; |
| import org.eclipse.jpt.core.context.java.JavaPersistentAttribute; |
| import org.eclipse.jpt.core.internal.context.java.JavaOneToOneMappingProvider; |
| |
| public class EclipseLinkJavaOneToOneMappingProvider |
| implements DefaultJavaAttributeMappingProvider |
| { |
| |
| // singleton |
| private static final EclipseLinkJavaOneToOneMappingProvider INSTANCE = new EclipseLinkJavaOneToOneMappingProvider(); |
| |
| /** |
| * Return the singleton. |
| */ |
| public static DefaultJavaAttributeMappingProvider instance() { |
| return INSTANCE; |
| } |
| |
| /** |
| * Ensure single instance. |
| */ |
| private EclipseLinkJavaOneToOneMappingProvider() { |
| super(); |
| } |
| |
| public String getKey() { |
| return JavaOneToOneMappingProvider.instance().getKey(); |
| } |
| |
| public String getAnnotationName() { |
| return JavaOneToOneMappingProvider.instance().getAnnotationName(); |
| } |
| |
| public JavaAttributeMapping buildMapping(JavaPersistentAttribute parent, JpaFactory factory) { |
| return JavaOneToOneMappingProvider.instance().buildMapping(parent, factory); |
| } |
| |
| public boolean defaultApplies(JavaPersistentAttribute persistentAttribute) { |
| String targetEntity = persistentAttribute.getSingleReferenceEntityTypeName(); |
| return (targetEntity != null) |
| && (persistentAttribute.getPersistenceUnit().getEntity(targetEntity) != null); |
| } |
| } |