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/*******************************************************************************
* Copyright (c) 2007, 2010 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.source;
import org.eclipse.jdt.core.dom.CompilationUnit;
import org.eclipse.jpt.core.internal.utility.jdt.EnumDeclarationAnnotationElementAdapter;
import org.eclipse.jpt.core.internal.utility.jdt.MemberAnnotationElementAdapter;
import org.eclipse.jpt.core.internal.utility.jdt.SimpleDeclarationAnnotationAdapter;
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.JavaResourcePersistentType;
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.Type;
/**
* javax.persistence.DiscriminatorColumn
*/
public final class SourceDiscriminatorColumnAnnotation
extends SourceNamedColumnAnnotation
implements DiscriminatorColumnAnnotation
{
private static final DeclarationAnnotationAdapter DECLARATION_ANNOTATION_ADAPTER = new SimpleDeclarationAnnotationAdapter(ANNOTATION_NAME);
private static final DeclarationAnnotationElementAdapter<String> DISCRIMINATOR_TYPE_ADAPTER = buildDiscriminatorTypeAdapter();
private final AnnotationElementAdapter<String> discriminatorTypeAdapter;
private DiscriminatorType discriminatorType;
private final DeclarationAnnotationElementAdapter<Integer> lengthDeclarationAdapter;
private final AnnotationElementAdapter<Integer> lengthAdapter;
private Integer length;
public SourceDiscriminatorColumnAnnotation(JavaResourcePersistentType parent, Type type) {
super(parent, type, DECLARATION_ANNOTATION_ADAPTER);
this.discriminatorTypeAdapter = new MemberAnnotationElementAdapter<String>(type, DISCRIMINATOR_TYPE_ADAPTER);
this.lengthDeclarationAdapter = this.buildIntegerElementAdapter(JPA.DISCRIMINATOR_COLUMN__LENGTH);
this.lengthAdapter = this.buildShortCircuitIntegerElementAdapter(this.lengthDeclarationAdapter);
}
public String getAnnotationName() {
return ANNOTATION_NAME;
}
@Override
public void initialize(CompilationUnit astRoot) {
super.initialize(astRoot);
this.discriminatorType = this.buildDiscriminatorType(astRoot);
this.length = this.buildLength(astRoot);
}
@Override
public void synchronizeWith(CompilationUnit astRoot) {
super.synchronizeWith(astRoot);
this.syncLength(this.buildLength(astRoot));
this.syncDiscriminatorType(this.buildDiscriminatorType(astRoot));
}
// ********** JavaSourceNamedColumnAnnotation implementation **********
@Override
protected String getNameElementName() {
return JPA.DISCRIMINATOR_COLUMN__NAME;
}
@Override
protected String getColumnDefinitionElementName() {
return JPA.DISCRIMINATOR_COLUMN__COLUMN_DEFINITION;
}
// ********** DiscriminatorColumn implementation **********
// ***** discriminator type
public DiscriminatorType getDiscriminatorType() {
return this.discriminatorType;
}
public void setDiscriminatorType(DiscriminatorType discriminatorType) {
if (this.attributeValueHasChanged(this.discriminatorType, discriminatorType)) {
this.discriminatorType = discriminatorType;
this.discriminatorTypeAdapter.setValue(DiscriminatorType.toJavaAnnotationValue(discriminatorType));
}
}
private void syncDiscriminatorType(DiscriminatorType astDiscriminatorType) {
DiscriminatorType old = this.discriminatorType;
this.discriminatorType = astDiscriminatorType;
this.firePropertyChanged(DISCRIMINATOR_TYPE_PROPERTY, old, astDiscriminatorType);
}
private DiscriminatorType buildDiscriminatorType(CompilationUnit astRoot) {
return DiscriminatorType.fromJavaAnnotationValue(this.discriminatorTypeAdapter.getValue(astRoot));
}
// ***** length
public Integer getLength() {
return this.length;
}
public void setLength(Integer length) {
if (this.attributeValueHasChanged(this.length, length)) {
this.length = length;
this.lengthAdapter.setValue(length);
}
}
private void syncLength(Integer astLength) {
Integer old = this.length;
this.length = astLength;
this.firePropertyChanged(LENGTH_PROPERTY, old, astLength);
}
private Integer buildLength(CompilationUnit astRoot) {
return this.lengthAdapter.getValue(astRoot);
}
// ********** NestableAnnotation implementation **********
@Override
public void initializeFrom(NestableAnnotation oldAnnotation) {
throw new UnsupportedOperationException("DiscriminatorColumn is not a nestable annotation"); //$NON-NLS-1$
}
// ********** static methods **********
private static DeclarationAnnotationElementAdapter<String> buildDiscriminatorTypeAdapter() {
return new EnumDeclarationAnnotationElementAdapter(DECLARATION_ANNOTATION_ADAPTER, JPA.DISCRIMINATOR_COLUMN__DISCRIMINATOR_TYPE);
}
}
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