| /******************************************************************************* |
| * 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.content.java.mappings; |
| |
| import org.eclipse.jpt.core.internal.IMappingKeys; |
| import org.eclipse.jpt.core.internal.IPersistentType; |
| import org.eclipse.jpt.core.internal.content.java.IJavaAttributeMapping; |
| import org.eclipse.jpt.core.internal.content.java.IJavaAttributeMappingProvider; |
| import org.eclipse.jpt.core.internal.jdtutility.Attribute; |
| import org.eclipse.jpt.core.internal.jdtutility.DeclarationAnnotationAdapter; |
| import org.eclipse.jpt.core.internal.mappings.IEmbeddable; |
| import org.eclipse.jpt.core.internal.platform.DefaultsContext; |
| |
| /** |
| * |
| */ |
| public class JavaEmbeddedProvider |
| implements IJavaAttributeMappingProvider |
| { |
| |
| // singleton |
| private static final JavaEmbeddedProvider INSTANCE = new JavaEmbeddedProvider(); |
| |
| /** |
| * Return the singleton. |
| */ |
| public static IJavaAttributeMappingProvider instance() { |
| return INSTANCE; |
| } |
| |
| /** |
| * Ensure non-instantiability. |
| */ |
| private JavaEmbeddedProvider() { |
| super(); |
| } |
| |
| public String key() { |
| return IMappingKeys.EMBEDDED_ATTRIBUTE_MAPPING_KEY; |
| } |
| |
| public boolean defaultApplies(Attribute attribute, DefaultsContext defaultsContext) { |
| return embeddableFor(attribute, defaultsContext) != null; |
| } |
| |
| private IEmbeddable embeddableFor(Attribute attribute, DefaultsContext defaultsContext) { |
| String resolvedTypeName = attribute.resolvedTypeName(); |
| if (resolvedTypeName == null) { |
| return null; |
| } |
| IPersistentType persistentType = defaultsContext.persistentType(resolvedTypeName); |
| if (persistentType != null && persistentType.getMappingKey() == IMappingKeys.EMBEDDABLE_TYPE_MAPPING_KEY) { |
| return (IEmbeddable) persistentType.getMapping(); |
| } |
| return null; |
| } |
| |
| public IJavaAttributeMapping buildMapping(Attribute attribute) { |
| return JpaJavaMappingsFactory.eINSTANCE.createJavaEmbedded(attribute); |
| } |
| |
| public DeclarationAnnotationAdapter declarationAnnotationAdapter() { |
| return JavaEmbedded.DECLARATION_ANNOTATION_ADAPTER; |
| } |
| |
| } |