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/*******************************************************************************
* 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.resource.java;
import org.eclipse.jdt.core.dom.CompilationUnit;
import org.eclipse.jpt.core.internal.jdtutility.AnnotationElementAdapter;
import org.eclipse.jpt.core.internal.jdtutility.DeclarationAnnotationAdapter;
import org.eclipse.jpt.core.internal.jdtutility.DeclarationAnnotationElementAdapter;
import org.eclipse.jpt.core.internal.jdtutility.EnumDeclarationAnnotationElementAdapter;
import org.eclipse.jpt.core.internal.jdtutility.Member;
import org.eclipse.jpt.core.internal.jdtutility.MemberAnnotationAdapter;
import org.eclipse.jpt.core.internal.jdtutility.ShortCircuitAnnotationElementAdapter;
import org.eclipse.jpt.core.internal.jdtutility.SimpleDeclarationAnnotationAdapter;
public class DiscriminatorColumnImpl extends AbstractNamedColumn implements DiscriminatorColumn
{
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(JavaResource 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);
DiscriminatorColumn oldColumn = (DiscriminatorColumn) oldAnnotation;
setLength(oldColumn.getLength());
setDiscriminatorType(oldColumn.getDiscriminatorType());
}
public DiscriminatorType getDiscriminatorType() {
return this.discriminatorType;
}
public void setDiscriminatorType(DiscriminatorType newDiscriminatorType) {
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) {
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(JavaResource parent, Member member) {
return new DiscriminatorColumnImpl(parent, member, DiscriminatorColumnImpl.DECLARATION_ANNOTATION_ADAPTER);
}
public Annotation buildNullAnnotation(JavaResource parent, Member member) {
return new NullDiscriminatorColumn(parent);
}
public String getAnnotationName() {
return ANNOTATION_NAME;
}
}
}
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