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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.resource.java.ColumnImpl;
import org.eclipse.jpt.core.internal.utility.jdt.ConversionDeclarationAnnotationElementAdapter;
import org.eclipse.jpt.core.internal.utility.jdt.MemberAnnotationAdapter;
import org.eclipse.jpt.core.internal.utility.jdt.NestedDeclarationAnnotationAdapter;
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.ColumnAnnotation;
import org.eclipse.jpt.core.resource.java.JPA;
import org.eclipse.jpt.core.resource.java.JavaResourceNode;
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.WriteTransformerAnnotation;
public class WriteTransformerImpl extends AbstractResourceAnnotation<Attribute> implements WriteTransformerAnnotation
{
private static final DeclarationAnnotationAdapter DECLARATION_ANNOTATION_ADAPTER = new SimpleDeclarationAnnotationAdapter(ANNOTATION_NAME);
private final AnnotationElementAdapter<String> transformerClassAdapter;
private final AnnotationElementAdapter<String> methodAdapter;
private final MemberAnnotationAdapter columnAdapter;
private static final DeclarationAnnotationElementAdapter<String> TRANSFORMER_CLASS_ADAPTER = buildTransformerClassAdapter();
private static final DeclarationAnnotationElementAdapter<String> METHOD_ADAPTER = buildMethodAdapter();
private String transformerClass;
private String method;
private ColumnImpl column;
protected WriteTransformerImpl(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);
this.columnAdapter = new MemberAnnotationAdapter(getMember(), buildColumnAnnotationAdapter(getDeclarationAnnotationAdapter()));
}
public void initialize(CompilationUnit astRoot) {
this.transformerClass = this.transformerClass(astRoot);
this.method = this.method(astRoot);
if (this.columnAdapter.getAnnotation(astRoot) != null) {
this.column = createColumn(this, getMember(), getDeclarationAnnotationAdapter());
this.column.initialize(astRoot);
}
}
public String getAnnotationName() {
return ANNOTATION_NAME;
}
//*************** WriteTransformer 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 ColumnAnnotation getNonNullColumn() {
return (getColumn() != null) ? getColumn() : new NullWriteTransformerColumn(this);
}
public ColumnAnnotation getColumn() {
return this.column;
}
public ColumnAnnotation addColumn() {
ColumnImpl column = createColumn(this, getMember(), getDeclarationAnnotationAdapter());
column.newAnnotation();
setColumn(column);
return column;
}
public void removeColumn() {
this.column.removeAnnotation();
setColumn(null);
}
protected void setColumn(ColumnImpl newColumn) {
ColumnImpl oldColumn = this.column;
this.column = newColumn;
firePropertyChanged(WriteTransformerAnnotation.COLUMN_PROPERTY, oldColumn, newColumn);
}
public TextRange getTransformerClassTextRange(CompilationUnit astRoot) {
return this.getElementTextRange(TRANSFORMER_CLASS_ADAPTER, astRoot);
}
public TextRange getMethodTextRange(CompilationUnit astRoot) {
return this.getElementTextRange(METHOD_ADAPTER, astRoot);
}
public TextRange getColumnTextRange(CompilationUnit astRoot) {
if (this.column != null) {
return this.column.getTextRange(astRoot);
}
return getTextRange(astRoot);
}
public void update(CompilationUnit astRoot) {
this.setTransformerClass(this.transformerClass(astRoot));
this.setMethod(this.method(astRoot));
if (this.columnAdapter.getAnnotation(astRoot) == null) {
this.setColumn(null);
}
else {
if (getColumn() != null) {
getColumn().update(astRoot);
}
else {
ColumnImpl column = createColumn(this, getMember(), getDeclarationAnnotationAdapter());
column.initialize(astRoot);
this.setColumn(column);
}
}
}
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.WRITE_TRANSFORMER__TRANSFORMER_CLASS, false, SimpleTypeStringExpressionConverter.instance());
}
private static DeclarationAnnotationElementAdapter<String> buildMethodAdapter() {
return ConversionDeclarationAnnotationElementAdapter.forStrings(DECLARATION_ANNOTATION_ADAPTER, EclipseLinkJPA.WRITE_TRANSFORMER__METHOD, false);
}
private static DeclarationAnnotationAdapter buildColumnAnnotationAdapter(DeclarationAnnotationAdapter writeTransformerAnnotationAdapter) {
return new NestedDeclarationAnnotationAdapter(writeTransformerAnnotationAdapter, EclipseLinkJPA.WRITE_TRANSFORMER__COLUMN, JPA.COLUMN, false);
}
private static ColumnImpl createColumn(JavaResourceNode parent, Member member, DeclarationAnnotationAdapter writeTransformerAnnotationAdapter) {
return new ColumnImpl(parent, member, buildColumnAnnotationAdapter(writeTransformerAnnotationAdapter));
}
public static class WriteTransformerAnnotationDefinition implements AnnotationDefinition
{
// singleton
private static final WriteTransformerAnnotationDefinition INSTANCE = new WriteTransformerAnnotationDefinition();
/**
* Return the singleton.
*/
public static WriteTransformerAnnotationDefinition instance() {
return INSTANCE;
}
/**
* Ensure single instance.
*/
private WriteTransformerAnnotationDefinition() {
super();
}
public Annotation buildAnnotation(JavaResourcePersistentMember parent, Member member) {
return new WriteTransformerImpl((JavaResourcePersistentAttribute) parent, (Attribute) member);
}
public Annotation buildNullAnnotation(JavaResourcePersistentMember parent, Member member) {
return null;
}
public String getAnnotationName() {
return ANNOTATION_NAME;
}
}
}
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