| /******************************************************************************* |
| * Copyright (c) 2007, 2008 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.resource.java; |
| |
| import org.eclipse.jdt.core.dom.CompilationUnit; |
| import org.eclipse.jpt.core.internal.utility.jdt.EnumDeclarationAnnotationElementAdapter; |
| import org.eclipse.jpt.core.internal.utility.jdt.MemberAnnotationAdapter; |
| import org.eclipse.jpt.core.internal.utility.jdt.ShortCircuitAnnotationElementAdapter; |
| import org.eclipse.jpt.core.internal.utility.jdt.SimpleDeclarationAnnotationAdapter; |
| import org.eclipse.jpt.core.resource.java.Annotation; |
| import org.eclipse.jpt.core.resource.java.AnnotationDefinition; |
| import org.eclipse.jpt.core.resource.java.DiscriminatorColumnAnnotation; |
| import org.eclipse.jpt.core.resource.java.DiscriminatorType; |
| import org.eclipse.jpt.core.resource.java.JPA; |
| import org.eclipse.jpt.core.resource.java.JavaResourceNode; |
| import org.eclipse.jpt.core.resource.java.JavaResourcePersistentMember; |
| import org.eclipse.jpt.core.resource.java.NestableAnnotation; |
| import org.eclipse.jpt.core.utility.jdt.AnnotationElementAdapter; |
| import org.eclipse.jpt.core.utility.jdt.DeclarationAnnotationAdapter; |
| import org.eclipse.jpt.core.utility.jdt.DeclarationAnnotationElementAdapter; |
| import org.eclipse.jpt.core.utility.jdt.Member; |
| |
| public class DiscriminatorColumnImpl extends AbstractNamedColumn implements DiscriminatorColumnAnnotation |
| { |
| public static final DeclarationAnnotationAdapter DECLARATION_ANNOTATION_ADAPTER = new SimpleDeclarationAnnotationAdapter(ANNOTATION_NAME); |
| |
| private static final DeclarationAnnotationElementAdapter<String> DISCRIMINATOR_TYPE_ADAPTER = buildDiscriminatorTypeAdapter(); |
| |
| // hold this so we can get the 'length' text range |
| private final DeclarationAnnotationElementAdapter<Integer> lengthDeclarationAdapter; |
| |
| private final AnnotationElementAdapter<String> discriminatorTypeAdapter; |
| |
| private final AnnotationElementAdapter<Integer> lengthAdapter; |
| |
| private DiscriminatorType discriminatorType; |
| |
| private Integer length; |
| |
| protected DiscriminatorColumnImpl(JavaResourceNode parent, Member member, DeclarationAnnotationAdapter daa) { |
| super(parent, member, daa, new MemberAnnotationAdapter(member, daa)); |
| this.discriminatorTypeAdapter = new ShortCircuitAnnotationElementAdapter<String>(member, DISCRIMINATOR_TYPE_ADAPTER); |
| this.lengthDeclarationAdapter = this.buildIntegerElementAdapter(JPA.DISCRIMINATOR_COLUMN__LENGTH); |
| this.lengthAdapter = this.buildShortCircuitIntegerElementAdapter(this.lengthDeclarationAdapter); |
| } |
| |
| @Override |
| public void initialize(CompilationUnit astRoot) { |
| super.initialize(astRoot); |
| this.discriminatorType = this.discriminatorType(astRoot); |
| this.length = this.length(astRoot); |
| } |
| |
| @Override |
| protected String nameElementName() { |
| return JPA.DISCRIMINATOR_COLUMN__NAME; |
| } |
| |
| @Override |
| protected String columnDefinitionElementName() { |
| return JPA.DISCRIMINATOR_COLUMN__COLUMN_DEFINITION; |
| } |
| |
| public String getAnnotationName() { |
| return ANNOTATION_NAME; |
| } |
| |
| public void moveAnnotation(int newIndex) { |
| //TODO move makes no sense for DiscriminatorColumn. maybe NestableAnnotation |
| //needs to be split up and we could have IndexableAnnotation |
| } |
| |
| @Override |
| public void initializeFrom(NestableAnnotation oldAnnotation) { |
| super.initializeFrom(oldAnnotation); |
| DiscriminatorColumnAnnotation oldColumn = (DiscriminatorColumnAnnotation) oldAnnotation; |
| setLength(oldColumn.getLength()); |
| setDiscriminatorType(oldColumn.getDiscriminatorType()); |
| } |
| |
| public DiscriminatorType getDiscriminatorType() { |
| return this.discriminatorType; |
| } |
| |
| public void setDiscriminatorType(DiscriminatorType newDiscriminatorType) { |
| if (attributeValueHasNotChanged(this.discriminatorType, newDiscriminatorType)) { |
| return; |
| } |
| DiscriminatorType oldDiscriminatorType = this.discriminatorType; |
| this.discriminatorType = newDiscriminatorType; |
| this.discriminatorTypeAdapter.setValue(DiscriminatorType.toJavaAnnotationValue(newDiscriminatorType)); |
| firePropertyChanged(DISCRIMINATOR_TYPE_PROPERTY, oldDiscriminatorType, newDiscriminatorType); |
| } |
| |
| public Integer getLength() { |
| return this.length; |
| } |
| |
| public void setLength(Integer newLength) { |
| if (attributeValueHasNotChanged(this.length, newLength)) { |
| return; |
| } |
| Integer oldLength = this.length; |
| this.length = newLength; |
| this.lengthAdapter.setValue(newLength); |
| firePropertyChanged(LENGTH_PROPERTY, oldLength, newLength); |
| } |
| |
| @Override |
| public void updateFromJava(CompilationUnit astRoot) { |
| super.updateFromJava(astRoot); |
| this.setLength(this.length(astRoot)); |
| this.setDiscriminatorType(this.discriminatorType(astRoot)); |
| } |
| |
| protected Integer length(CompilationUnit astRoot) { |
| return this.lengthAdapter.getValue(astRoot); |
| } |
| |
| protected DiscriminatorType discriminatorType(CompilationUnit astRoot) { |
| return DiscriminatorType.fromJavaAnnotationValue(this.discriminatorTypeAdapter.getValue(astRoot)); |
| } |
| |
| // ********** static methods ********** |
| private static DeclarationAnnotationElementAdapter<String> buildDiscriminatorTypeAdapter() { |
| return new EnumDeclarationAnnotationElementAdapter(DECLARATION_ANNOTATION_ADAPTER, JPA.DISCRIMINATOR_COLUMN__DISCRIMINATOR_TYPE); |
| } |
| |
| public static class DiscriminatorColumnAnnotationDefinition implements AnnotationDefinition |
| { |
| // singleton |
| private static final DiscriminatorColumnAnnotationDefinition INSTANCE = new DiscriminatorColumnAnnotationDefinition(); |
| |
| |
| /** |
| * Return the singleton. |
| */ |
| public static AnnotationDefinition instance() { |
| return INSTANCE; |
| } |
| |
| /** |
| * Ensure non-instantiability. |
| */ |
| private DiscriminatorColumnAnnotationDefinition() { |
| super(); |
| } |
| |
| public Annotation buildAnnotation(JavaResourcePersistentMember parent, Member member) { |
| return new DiscriminatorColumnImpl(parent, member, DiscriminatorColumnImpl.DECLARATION_ANNOTATION_ADAPTER); |
| } |
| |
| public Annotation buildNullAnnotation(JavaResourcePersistentMember parent, Member member) { |
| return new NullDiscriminatorColumn(parent); |
| } |
| |
| public String getAnnotationName() { |
| return ANNOTATION_NAME; |
| } |
| } |
| } |