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/*******************************************************************************
* Copyright (c) 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.eclipselink.core.internal.resource.java;
import org.eclipse.jdt.core.dom.CompilationUnit;
import org.eclipse.jpt.core.internal.resource.java.AbstractResourceAnnotation;
import org.eclipse.jpt.core.internal.utility.jdt.ConversionDeclarationAnnotationElementAdapter;
import org.eclipse.jpt.core.internal.utility.jdt.ShortCircuitAnnotationElementAdapter;
import org.eclipse.jpt.core.internal.utility.jdt.SimpleDeclarationAnnotationAdapter;
import org.eclipse.jpt.core.internal.utility.jdt.SimpleTypeStringExpressionConverter;
import org.eclipse.jpt.core.resource.java.Annotation;
import org.eclipse.jpt.core.resource.java.AnnotationDefinition;
import org.eclipse.jpt.core.resource.java.JavaResourcePersistentAttribute;
import org.eclipse.jpt.core.resource.java.JavaResourcePersistentMember;
import org.eclipse.jpt.core.utility.TextRange;
import org.eclipse.jpt.core.utility.jdt.AnnotationElementAdapter;
import org.eclipse.jpt.core.utility.jdt.Attribute;
import org.eclipse.jpt.core.utility.jdt.DeclarationAnnotationAdapter;
import org.eclipse.jpt.core.utility.jdt.DeclarationAnnotationElementAdapter;
import org.eclipse.jpt.core.utility.jdt.Member;
import org.eclipse.jpt.eclipselink.core.resource.java.EclipseLinkJPA;
import org.eclipse.jpt.eclipselink.core.resource.java.ReadTransformerAnnotation;
public class ReadTransformerImpl extends AbstractResourceAnnotation<Attribute> implements ReadTransformerAnnotation
{
private static final DeclarationAnnotationAdapter DECLARATION_ANNOTATION_ADAPTER = new SimpleDeclarationAnnotationAdapter(ANNOTATION_NAME);
private final AnnotationElementAdapter<String> transformerClassAdapter;
private final AnnotationElementAdapter<String> methodAdapter;
private static final DeclarationAnnotationElementAdapter<String> TRANSFORMER_CLASS_ADAPTER = buildTransformerClassAdapter();
private static final DeclarationAnnotationElementAdapter<String> METHOD_ADAPTER = buildMethodAdapter();
private String transformerClass;
private String method;
protected ReadTransformerImpl(JavaResourcePersistentAttribute parent, Attribute attribute) {
super(parent, attribute, DECLARATION_ANNOTATION_ADAPTER);
this.transformerClassAdapter = new ShortCircuitAnnotationElementAdapter<String>(attribute, TRANSFORMER_CLASS_ADAPTER);
this.methodAdapter = new ShortCircuitAnnotationElementAdapter<String>(attribute, METHOD_ADAPTER);
}
public void initialize(CompilationUnit astRoot) {
this.transformerClass = this.transformerClass(astRoot);
this.method = this.method(astRoot);
}
public String getAnnotationName() {
return ANNOTATION_NAME;
}
//*************** ReadTransformer implementation ****************
public String getTransformerClass() {
return this.transformerClass;
}
public void setTransformerClass(String newTransformerClass) {
if (attributeValueHasNotChanged(this.transformerClass, newTransformerClass)) {
return;
}
String oldTransformerClass = this.transformerClass;
this.transformerClass = newTransformerClass;
this.transformerClassAdapter.setValue(newTransformerClass);
firePropertyChanged(TRANSFORMER_CLASS_PROPERTY, oldTransformerClass, newTransformerClass);
}
public String getMethod() {
return this.method;
}
public void setMethod(String newMethod) {
if (attributeValueHasNotChanged(this.method, newMethod)) {
return;
}
String oldMethod = this.method;
this.method = newMethod;
this.methodAdapter.setValue(newMethod);
firePropertyChanged(METHOD_PROPERTY, oldMethod, newMethod);
}
public TextRange getTransformerClassTextRange(CompilationUnit astRoot) {
return this.getElementTextRange(TRANSFORMER_CLASS_ADAPTER, astRoot);
}
public TextRange getMethodTextRange(CompilationUnit astRoot) {
return this.getElementTextRange(METHOD_ADAPTER, astRoot);
}
public void update(CompilationUnit astRoot) {
this.setTransformerClass(this.transformerClass(astRoot));
this.setMethod(this.method(astRoot));
}
protected String transformerClass(CompilationUnit astRoot) {
return this.transformerClassAdapter.getValue(astRoot);
}
protected String method(CompilationUnit astRoot) {
return this.methodAdapter.getValue(astRoot);
}
// ********** static methods **********
private static DeclarationAnnotationElementAdapter<String> buildTransformerClassAdapter() {
return new ConversionDeclarationAnnotationElementAdapter<String>(DECLARATION_ANNOTATION_ADAPTER, EclipseLinkJPA.READ_TRANSFORMER__TRANSFORMER_CLASS, false, SimpleTypeStringExpressionConverter.instance());
}
private static DeclarationAnnotationElementAdapter<String> buildMethodAdapter() {
return ConversionDeclarationAnnotationElementAdapter.forStrings(DECLARATION_ANNOTATION_ADAPTER, EclipseLinkJPA.READ_TRANSFORMER__METHOD, false);
}
public static class ReadTransformerAnnotationDefinition implements AnnotationDefinition
{
// singleton
private static final ReadTransformerAnnotationDefinition INSTANCE = new ReadTransformerAnnotationDefinition();
/**
* Return the singleton.
*/
public static ReadTransformerAnnotationDefinition instance() {
return INSTANCE;
}
/**
* Ensure non-instantiability.
*/
private ReadTransformerAnnotationDefinition() {
super();
}
public Annotation buildAnnotation(JavaResourcePersistentMember parent, Member member) {
return new ReadTransformerImpl((JavaResourcePersistentAttribute) parent, (Attribute) member);
}
public Annotation buildNullAnnotation(JavaResourcePersistentMember parent, Member member) {
return null;
}
public String getAnnotationName() {
return ANNOTATION_NAME;
}
}
}
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