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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.context.java;
import org.eclipse.jdt.core.dom.CompilationUnit;
import org.eclipse.jpt.core.context.java.JavaTypeMapping;
import org.eclipse.jpt.core.internal.context.java.AbstractJavaJpaContextNode;
import org.eclipse.jpt.core.resource.java.JavaResourcePersistentType;
import org.eclipse.jpt.core.utility.TextRange;
import org.eclipse.jpt.eclipselink.core.context.ChangeTracking;
import org.eclipse.jpt.eclipselink.core.context.ChangeTrackingType;
import org.eclipse.jpt.eclipselink.core.internal.EclipseLinkJpaFactory;
import org.eclipse.jpt.eclipselink.core.resource.java.ChangeTrackingAnnotation;
public class EclipseLinkJavaChangeTracking extends AbstractJavaJpaContextNode implements ChangeTracking
{
protected JavaResourcePersistentType resourcePersistentType;
protected ChangeTrackingType specifiedType;
public EclipseLinkJavaChangeTracking(JavaTypeMapping parent) {
super(parent);
}
@Override
public JavaTypeMapping getParent() {
return (JavaTypeMapping) super.getParent();
}
@Override
protected EclipseLinkJpaFactory getJpaFactory() {
return (EclipseLinkJpaFactory) super.getJpaFactory();
}
protected String getChangeTrackingAnnotationName() {
return ChangeTrackingAnnotation.ANNOTATION_NAME;
}
protected ChangeTrackingAnnotation getChangeTrackingAnnotation() {
return (ChangeTrackingAnnotation) this.resourcePersistentType.getSupportingAnnotation(getChangeTrackingAnnotationName());
}
protected void addChangeTrackingAnnotation() {
this.resourcePersistentType.addSupportingAnnotation(getChangeTrackingAnnotationName());
}
protected void removeChangeTrackingAnnotation() {
this.resourcePersistentType.removeSupportingAnnotation(getChangeTrackingAnnotationName());
}
public ChangeTrackingType getType() {
return (this.getSpecifiedType() != null) ? this.getSpecifiedType() : this.getDefaultType();
}
public ChangeTrackingType getDefaultType() {
return DEFAULT_TYPE;
}
public ChangeTrackingType getSpecifiedType() {
return this.specifiedType;
}
public void setSpecifiedType(ChangeTrackingType newSpecifiedType) {
if (this.specifiedType == newSpecifiedType) {
return;
}
ChangeTrackingType oldSpecifiedType = this.specifiedType;
this.specifiedType = newSpecifiedType;
if (newSpecifiedType != null) {
if (getChangeTrackingAnnotation() == null) {
addChangeTrackingAnnotation();
}
getChangeTrackingAnnotation().setValue(ChangeTrackingType.toJavaResourceModel(newSpecifiedType));
}
else {
if (getChangeTrackingAnnotation() != null) {
removeChangeTrackingAnnotation();
}
}
firePropertyChanged(SPECIFIED_TYPE_PROPERTY, oldSpecifiedType, newSpecifiedType);
}
/**
* internal setter used only for updating from the resource model.
* There were problems with InvalidThreadAccess exceptions in the UI
* when you set a value from the UI and the annotation doesn't exist yet.
* Adding the annotation causes an update to occur and then the exception.
*/
protected void setSpecifiedType_(ChangeTrackingType newSpecifiedType) {
ChangeTrackingType oldSpecifiedType = this.specifiedType;
this.specifiedType = newSpecifiedType;
firePropertyChanged(SPECIFIED_TYPE_PROPERTY, oldSpecifiedType, newSpecifiedType);
}
public void initialize(JavaResourcePersistentType resourcePersistentType) {
this.resourcePersistentType = resourcePersistentType;
ChangeTrackingAnnotation changeTrackingAnnotation = this.getChangeTrackingAnnotation();
this.specifiedType = changeTrackingType(changeTrackingAnnotation);
}
public void update(JavaResourcePersistentType resourcePersistentType) {
this.resourcePersistentType = resourcePersistentType;
ChangeTrackingAnnotation changeTrackingAnnotation = this.getChangeTrackingAnnotation();
this.setSpecifiedType_(changeTrackingType(changeTrackingAnnotation));
}
protected ChangeTrackingType changeTrackingType(ChangeTrackingAnnotation changeTracking) {
if (changeTracking == null) {
return null;
}
else if (changeTracking.getValue() == null) {
return ChangeTracking.DEFAULT_TYPE;
}
else {
return ChangeTrackingType.fromJavaResourceModel(changeTracking.getValue());
}
}
public TextRange getValidationTextRange(CompilationUnit astRoot) {
ChangeTrackingAnnotation changeTrackingAnnotation = getChangeTrackingAnnotation();
TextRange textRange = changeTrackingAnnotation == null ? null : changeTrackingAnnotation.getTextRange(astRoot);
return (textRange != null) ? textRange : this.getParent().getValidationTextRange(astRoot);
}
}
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