jpa/plugins/org.eclipse.jpt.jpa.eclipselink.core/src/org/eclipse/jpt/jpa/eclipselink/core/internal/context/orm/EclipseLinkOrmCustomizer.java - dali/webtools.dali - Git at Google

 /*******************************************************************************
  * Copyright (c) 2008, 2016 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.jpa.eclipselink.core.internal.context.orm;

 import java.util.List;
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.jdt.core.IPackageFragment;
 import org.eclipse.jdt.core.IType;
 import org.eclipse.jpt.common.core.internal.utility.TypeTools;
 import org.eclipse.jpt.common.core.internal.utility.JavaProjectTools;
 import org.eclipse.jpt.common.core.resource.java.JavaResourceAbstractType;
 import org.eclipse.jpt.common.core.utility.TextRange;
 import org.eclipse.jpt.common.utility.internal.ObjectTools;
 import org.eclipse.jpt.common.utility.internal.StringTools;
 import org.eclipse.jpt.common.utility.internal.iterable.IterableTools;
 import org.eclipse.jpt.jpa.core.context.TypeRefactoringParticipant;
 import org.eclipse.jpt.jpa.core.context.orm.EntityMappings;
 import org.eclipse.jpt.jpa.core.internal.context.orm.AbstractOrmXmlContextModel;
 import org.eclipse.jpt.jpa.core.resource.orm.OrmFactory;
 import org.eclipse.jpt.jpa.core.resource.orm.XmlClassReference;
 import org.eclipse.jpt.jpa.core.resource.orm.XmlTypeMapping;
 import org.eclipse.jpt.jpa.eclipselink.core.context.EclipseLinkCustomizer;
 import org.eclipse.jpt.jpa.eclipselink.core.context.java.EclipseLinkJavaTypeMapping;
 import org.eclipse.jpt.jpa.eclipselink.core.context.orm.EclipseLinkOrmTypeMapping;
 import org.eclipse.jpt.jpa.eclipselink.core.internal.context.java.EclipseLinkJavaCustomizer;
 import org.eclipse.jpt.jpa.eclipselink.core.resource.orm.XmlCustomizerHolder;
 import org.eclipse.jpt.jpa.eclipselink.core.validation.JptJpaEclipseLinkCoreValidationMessages;
 import org.eclipse.text.edits.ReplaceEdit;
 import org.eclipse.wst.validation.internal.provisional.core.IMessage;
 import org.eclipse.wst.validation.internal.provisional.core.IReporter;

 public class EclipseLinkOrmCustomizer
 	extends AbstractOrmXmlContextModel<EclipseLinkOrmTypeMapping>
 	implements EclipseLinkCustomizer, TypeRefactoringParticipant
 {
 	protected String specifiedCustomizerClass;
 	protected String defaultCustomizerClass;
 	protected String fullyQualifiedCustomizerClass;


 	public EclipseLinkOrmCustomizer(EclipseLinkOrmTypeMapping parent) {
 		super(parent);
 		this.specifiedCustomizerClass = this.buildSpecifiedCustomizerClass();
 	}


 	// ********** synchronize/update **********

 	@Override
 	public void synchronizeWithResourceModel(IProgressMonitor monitor) {
 		super.synchronizeWithResourceModel(monitor);
 		this.setSpecifiedCustomizerClass_(this.buildSpecifiedCustomizerClass());
 	}

 	@Override
 	public void update(IProgressMonitor monitor) {
 		super.update(monitor);
 		this.setDefaultCustomizerClass(this.buildDefaultCustomizerClass());
 		this.setFullyQualifiedCustomizerClass(this.buildFullyQualifiedCustomizerClass());
 	}


 	// ********** customizer class **********

 	public String getCustomizerClass() {
 		return (this.specifiedCustomizerClass != null) ? this.specifiedCustomizerClass : this.defaultCustomizerClass;
 	}

 	public String getSpecifiedCustomizerClass() {
 		return this.specifiedCustomizerClass;
 	}

 	public void setSpecifiedCustomizerClass(String customizerClass) {
 		if (ObjectTools.notEquals(this.specifiedCustomizerClass, customizerClass)) {
 			XmlClassReference xmlClassRef = this.getXmlCustomizerClassRefForUpdate();
 			this.setSpecifiedCustomizerClass_(customizerClass);
 			xmlClassRef.setClassName(customizerClass);
 			this.removeXmlCustomizerClassRefIfUnset();
 		}
 	}

 	protected void setSpecifiedCustomizerClass_(String customizerClass) {
 		String old = this.specifiedCustomizerClass;
 		this.specifiedCustomizerClass = customizerClass;
 		this.firePropertyChanged(SPECIFIED_CUSTOMIZER_CLASS_PROPERTY, old, customizerClass);
 	}

 	protected String buildSpecifiedCustomizerClass() {
 		XmlClassReference xmlClassRef = this.getXmlCustomizerClassRef();
 		return (xmlClassRef == null) ? null : xmlClassRef.getClassName();
 	}

 	public String getDefaultCustomizerClass() {
 		return this.defaultCustomizerClass;
 	}

 	protected void setDefaultCustomizerClass(String customizerClass) {
 		String old = this.defaultCustomizerClass;
 		this.defaultCustomizerClass = customizerClass;
 		this.firePropertyChanged(DEFAULT_CUSTOMIZER_CLASS_PROPERTY, old, customizerClass);
 	}

 	protected String buildDefaultCustomizerClass() {
 		EclipseLinkJavaCustomizer javaCustomizer = this.getJavaCustomizerForDefaults();
 		return (javaCustomizer == null) ? null : javaCustomizer.getFullyQualifiedCustomizerClass();
 	}

 	public String getFullyQualifiedCustomizerClass() {
 		return this.fullyQualifiedCustomizerClass;
 	}

 	protected void setFullyQualifiedCustomizerClass(String customizerClass) {
 		String old = this.fullyQualifiedCustomizerClass;
 		this.fullyQualifiedCustomizerClass = customizerClass;
 		this.firePropertyChanged(FULLY_QUALIFIED_CUSTOMIZER_CLASS_PROPERTY, old, customizerClass);
 	}

 	protected String buildFullyQualifiedCustomizerClass() {
 		return (this.specifiedCustomizerClass == null) ?
 			//this is the fully qualified java customizer class name
 			this.defaultCustomizerClass :
 			this.getEntityMappings().qualify(this.specifiedCustomizerClass);
 	}


 	// ********** xml customizer class ref **********

 	/**
 	 * Return null if the XML class ref does not exists.
 	 */
 	protected XmlClassReference getXmlCustomizerClassRef() {
 		return this.getXmlCustomizerHolder().getCustomizer();
 	}

 	/**
 	 * Build the XML class ref if it does not exist.
 	 */
 	protected XmlClassReference getXmlCustomizerClassRefForUpdate() {
 		XmlClassReference xmlClassRef = this.getXmlCustomizerClassRef();
 		return (xmlClassRef != null) ? xmlClassRef : this.buildXmlCustomizerClassRef();
 	}

 	protected XmlClassReference buildXmlCustomizerClassRef() {
 		XmlClassReference ref = OrmFactory.eINSTANCE.createXmlClassReference();
 		this.getXmlCustomizerHolder().setCustomizer(ref);
 		return ref;
 	}

 	protected void removeXmlCustomizerClassRefIfUnset() {
 		if (this.getXmlCustomizerClassRef().isUnset()) {
 			this.removeXmlCustomizerClassRef();
 		}
 	}

 	protected void removeXmlCustomizerClassRef() {
 		this.getXmlCustomizerHolder().setCustomizer(null);
 	}

 	protected JavaResourceAbstractType getResourceCustomizerType() {
 		if (this.fullyQualifiedCustomizerClass == null) {
 			return null;
 		}
 		return this.getJpaProject().getJavaResourceType(this.fullyQualifiedCustomizerClass);
 	}


 	// ********** misc **********

 	protected EclipseLinkOrmTypeMapping getTypeMapping() {
 		return this.parent;
 	}

 	protected XmlTypeMapping getXmlTypeMapping() {
 		return this.getTypeMapping().getXmlTypeMapping();
 	}

 	protected XmlCustomizerHolder getXmlCustomizerHolder() {
 		return (XmlCustomizerHolder) this.getXmlTypeMapping();
 	}

 	protected EclipseLinkJavaTypeMapping getJavaTypeMappingForDefaults() {
 		return this.getTypeMapping().getJavaTypeMappingForDefaults();
 	}

 	protected EclipseLinkJavaCustomizer getJavaCustomizerForDefaults() {
 		EclipseLinkJavaTypeMapping javaTypeMapping = this.getJavaTypeMappingForDefaults();
 		return (javaTypeMapping == null) ? null : (EclipseLinkJavaCustomizer) javaTypeMapping.getCustomizer();
 	}

 	protected EntityMappings getEntityMappings() {
 		return this.getMappingFileRoot();
 	}

 	protected boolean isFor(String typeName) {
 		JavaResourceAbstractType customizerType = this.getResourceCustomizerType();
 		return (customizerType != null) && customizerType.getTypeBinding().getQualifiedName().equals(typeName);
 	}

 	protected boolean isIn(IPackageFragment packageFragment) {
 		JavaResourceAbstractType customizerType = this.getResourceCustomizerType();
 		return (customizerType != null) && customizerType.isIn(packageFragment);
 	}

 	public char getCustomizerClassEnclosingTypeSeparator() {
 		return '$';
 	}


 	// ********** refactoring **********

 	public Iterable<ReplaceEdit> createRenameTypeEdits(IType originalType, String newName) {
 		return this.getXmlCustomizerClassRef() != null && this.isFor(originalType.getFullyQualifiedName('.')) ?
 				IterableTools.singletonIterable(this.createRenameTypeEdit(originalType, newName)) :
 				IterableTools.<ReplaceEdit>emptyIterable();
 	}

 	protected ReplaceEdit createRenameTypeEdit(IType originalType, String newName) {
 		return this.getXmlCustomizerClassRef().createRenameEdit(originalType, newName);
 	}

 	public Iterable<ReplaceEdit> createMoveTypeEdits(IType originalType, IPackageFragment newPackage) {
 		return this.getXmlCustomizerClassRef() != null && this.isFor(originalType.getFullyQualifiedName('.')) ?
 				IterableTools.singletonIterable(this.createRenamePackageEdit(newPackage.getElementName())) :
 				IterableTools.<ReplaceEdit>emptyIterable();
 	}

 	public Iterable<ReplaceEdit> createRenamePackageEdits(IPackageFragment originalPackage, String newName) {
 		return this.getXmlCustomizerClassRef() != null && this.isIn(originalPackage) ?
 				IterableTools.singletonIterable(this.createRenamePackageEdit(newName)) :
 				IterableTools.<ReplaceEdit>emptyIterable();
 	}

 	protected ReplaceEdit createRenamePackageEdit(String newName) {
 		return this.getXmlCustomizerClassRef().createRenamePackageEdit(newName);
 	}


 	// ********** validation **********

 	@Override
 	public void validate(List<IMessage> messages, IReporter reporter) {
 		super.validate(messages, reporter);
 		this.validateCustomizerClass(messages);
 	}

 	protected void validateCustomizerClass(List<IMessage> messages) {
 		if (this.getCustomizerClass() == null) {
 			return;
 		}
 		if (StringTools.isBlank(this.getCustomizerClass())) {
 			messages.add(
 					this.buildValidationMessage(
 							this.getValidationTextRange(),
 							JptJpaEclipseLinkCoreValidationMessages.DESCRIPTOR_CUSTOMIZER_CLASS_NOT_SPECIFIED
 					)
 			);
 			return;
 		}

 		IType customizerJdtType = JavaProjectTools.findType(this.getJavaProject(), this.getFullyQualifiedCustomizerClass());
 		if (customizerJdtType == null) {
 			messages.add(
 					this.buildValidationMessage(
 							this.getValidationTextRange(),
 							JptJpaEclipseLinkCoreValidationMessages.DESCRIPTOR_CUSTOMIZER_CLASS_NOT_EXIST,
 							this.getFullyQualifiedCustomizerClass()
 					)
 			);
 			return;
 		}
 		if (!TypeTools.hasPublicZeroArgConstructor(customizerJdtType)) {
 			messages.add(
 					this.buildValidationMessage(
 							this.getValidationTextRange(),
 							JptJpaEclipseLinkCoreValidationMessages.DESCRIPTOR_CUSTOMIZER_CLASS_NOT_VALID,
 							this.getFullyQualifiedCustomizerClass()
 					)
 			);
 		}
 		if (!TypeTools.isSubTypeOf(customizerJdtType, ECLIPSELINK_DESCRIPTOR_CUSTOMIZER_CLASS_NAME)) {
 			messages.add(
 					this.buildValidationMessage(
 							this.getValidationTextRange(),
 							JptJpaEclipseLinkCoreValidationMessages.DESCRIPTOR_CUSTOMIZER_CLASS_IMPLEMENTS_DESCRIPTOR_CUSTOMIZER,
 							this.getFullyQualifiedCustomizerClass()
 					)
 			);
 		}
 	}

 	public TextRange getValidationTextRange() {
 		TextRange textRange = this.getXmlValidationTextRange();
 		return (textRange != null) ? textRange : this.getTypeMapping().getValidationTextRange();
 	}

 	protected TextRange getXmlValidationTextRange() {
 		XmlClassReference xmlClassRef = this.getXmlCustomizerClassRef();
 		return (xmlClassRef == null) ? null : xmlClassRef.getClassNameTextRange();
 	}

 	// ********** completion proposals **********

 	@Override
 	public Iterable<String> getCompletionProposals(int pos) {
 		Iterable<String> result = super.getCompletionProposals(pos);
 		if (result != null) {
 			return result;
 		}
 		if (this.customizerClassTouches(pos)) {
 			return this.getCandidateClassNames();
 		}
 		return null;
 	}

 	protected Iterable<String> getCandidateClassNames() {
 		return JavaProjectTools.getJavaClassNames(this.getJavaProject());
 	}

 	protected boolean customizerClassTouches(int pos) {
 		return this.getXmlCustomizerClassRef()== null? false : this.getXmlCustomizerClassRef().classNameTouches(pos);
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2008, 2016 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.jpa.eclipselink.core.internal.context.orm;

	import java.util.List;
	import org.eclipse.core.runtime.IProgressMonitor;
	import org.eclipse.jdt.core.IPackageFragment;
	import org.eclipse.jdt.core.IType;
	import org.eclipse.jpt.common.core.internal.utility.TypeTools;
	import org.eclipse.jpt.common.core.internal.utility.JavaProjectTools;
	import org.eclipse.jpt.common.core.resource.java.JavaResourceAbstractType;
	import org.eclipse.jpt.common.core.utility.TextRange;
	import org.eclipse.jpt.common.utility.internal.ObjectTools;
	import org.eclipse.jpt.common.utility.internal.StringTools;
	import org.eclipse.jpt.common.utility.internal.iterable.IterableTools;
	import org.eclipse.jpt.jpa.core.context.TypeRefactoringParticipant;
	import org.eclipse.jpt.jpa.core.context.orm.EntityMappings;
	import org.eclipse.jpt.jpa.core.internal.context.orm.AbstractOrmXmlContextModel;
	import org.eclipse.jpt.jpa.core.resource.orm.OrmFactory;
	import org.eclipse.jpt.jpa.core.resource.orm.XmlClassReference;
	import org.eclipse.jpt.jpa.core.resource.orm.XmlTypeMapping;
	import org.eclipse.jpt.jpa.eclipselink.core.context.EclipseLinkCustomizer;
	import org.eclipse.jpt.jpa.eclipselink.core.context.java.EclipseLinkJavaTypeMapping;
	import org.eclipse.jpt.jpa.eclipselink.core.context.orm.EclipseLinkOrmTypeMapping;
	import org.eclipse.jpt.jpa.eclipselink.core.internal.context.java.EclipseLinkJavaCustomizer;
	import org.eclipse.jpt.jpa.eclipselink.core.resource.orm.XmlCustomizerHolder;
	import org.eclipse.jpt.jpa.eclipselink.core.validation.JptJpaEclipseLinkCoreValidationMessages;
	import org.eclipse.text.edits.ReplaceEdit;
	import org.eclipse.wst.validation.internal.provisional.core.IMessage;
	import org.eclipse.wst.validation.internal.provisional.core.IReporter;

	public class EclipseLinkOrmCustomizer
	extends AbstractOrmXmlContextModel<EclipseLinkOrmTypeMapping>
	implements EclipseLinkCustomizer, TypeRefactoringParticipant
	{
	protected String specifiedCustomizerClass;
	protected String defaultCustomizerClass;
	protected String fullyQualifiedCustomizerClass;


	public EclipseLinkOrmCustomizer(EclipseLinkOrmTypeMapping parent) {
	super(parent);
	this.specifiedCustomizerClass = this.buildSpecifiedCustomizerClass();
	}


	// ******** synchronize/update ********

	@Override
	public void synchronizeWithResourceModel(IProgressMonitor monitor) {
	super.synchronizeWithResourceModel(monitor);
	this.setSpecifiedCustomizerClass_(this.buildSpecifiedCustomizerClass());
	}

	@Override
	public void update(IProgressMonitor monitor) {
	super.update(monitor);
	this.setDefaultCustomizerClass(this.buildDefaultCustomizerClass());
	this.setFullyQualifiedCustomizerClass(this.buildFullyQualifiedCustomizerClass());
	}


	// ******** customizer class ********

	public String getCustomizerClass() {
	return (this.specifiedCustomizerClass != null) ? this.specifiedCustomizerClass : this.defaultCustomizerClass;
	}

	public String getSpecifiedCustomizerClass() {
	return this.specifiedCustomizerClass;
	}

	public void setSpecifiedCustomizerClass(String customizerClass) {
	if (ObjectTools.notEquals(this.specifiedCustomizerClass, customizerClass)) {
	XmlClassReference xmlClassRef = this.getXmlCustomizerClassRefForUpdate();
	this.setSpecifiedCustomizerClass_(customizerClass);
	xmlClassRef.setClassName(customizerClass);
	this.removeXmlCustomizerClassRefIfUnset();
	}
	}

	protected void setSpecifiedCustomizerClass_(String customizerClass) {
	String old = this.specifiedCustomizerClass;
	this.specifiedCustomizerClass = customizerClass;
	this.firePropertyChanged(SPECIFIED_CUSTOMIZER_CLASS_PROPERTY, old, customizerClass);
	}

	protected String buildSpecifiedCustomizerClass() {
	XmlClassReference xmlClassRef = this.getXmlCustomizerClassRef();
	return (xmlClassRef == null) ? null : xmlClassRef.getClassName();
	}

	public String getDefaultCustomizerClass() {
	return this.defaultCustomizerClass;
	}

	protected void setDefaultCustomizerClass(String customizerClass) {
	String old = this.defaultCustomizerClass;
	this.defaultCustomizerClass = customizerClass;
	this.firePropertyChanged(DEFAULT_CUSTOMIZER_CLASS_PROPERTY, old, customizerClass);
	}

	protected String buildDefaultCustomizerClass() {
	EclipseLinkJavaCustomizer javaCustomizer = this.getJavaCustomizerForDefaults();
	return (javaCustomizer == null) ? null : javaCustomizer.getFullyQualifiedCustomizerClass();
	}

	public String getFullyQualifiedCustomizerClass() {
	return this.fullyQualifiedCustomizerClass;
	}

	protected void setFullyQualifiedCustomizerClass(String customizerClass) {
	String old = this.fullyQualifiedCustomizerClass;
	this.fullyQualifiedCustomizerClass = customizerClass;
	this.firePropertyChanged(FULLY_QUALIFIED_CUSTOMIZER_CLASS_PROPERTY, old, customizerClass);
	}

	protected String buildFullyQualifiedCustomizerClass() {
	return (this.specifiedCustomizerClass == null) ?
	//this is the fully qualified java customizer class name
	this.defaultCustomizerClass :
	this.getEntityMappings().qualify(this.specifiedCustomizerClass);
	}


	// ******** xml customizer class ref ********

	/**
	* Return null if the XML class ref does not exists.
	*/
	protected XmlClassReference getXmlCustomizerClassRef() {
	return this.getXmlCustomizerHolder().getCustomizer();
	}

	/**
	* Build the XML class ref if it does not exist.
	*/
	protected XmlClassReference getXmlCustomizerClassRefForUpdate() {
	XmlClassReference xmlClassRef = this.getXmlCustomizerClassRef();
	return (xmlClassRef != null) ? xmlClassRef : this.buildXmlCustomizerClassRef();
	}

	protected XmlClassReference buildXmlCustomizerClassRef() {
	XmlClassReference ref = OrmFactory.eINSTANCE.createXmlClassReference();
	this.getXmlCustomizerHolder().setCustomizer(ref);
	return ref;
	}

	protected void removeXmlCustomizerClassRefIfUnset() {
	if (this.getXmlCustomizerClassRef().isUnset()) {
	this.removeXmlCustomizerClassRef();
	}
	}

	protected void removeXmlCustomizerClassRef() {
	this.getXmlCustomizerHolder().setCustomizer(null);
	}

	protected JavaResourceAbstractType getResourceCustomizerType() {
	if (this.fullyQualifiedCustomizerClass == null) {
	return null;
	}
	return this.getJpaProject().getJavaResourceType(this.fullyQualifiedCustomizerClass);
	}


	// ******** misc ********

	protected EclipseLinkOrmTypeMapping getTypeMapping() {
	return this.parent;
	}

	protected XmlTypeMapping getXmlTypeMapping() {
	return this.getTypeMapping().getXmlTypeMapping();
	}

	protected XmlCustomizerHolder getXmlCustomizerHolder() {
	return (XmlCustomizerHolder) this.getXmlTypeMapping();
	}

	protected EclipseLinkJavaTypeMapping getJavaTypeMappingForDefaults() {
	return this.getTypeMapping().getJavaTypeMappingForDefaults();
	}

	protected EclipseLinkJavaCustomizer getJavaCustomizerForDefaults() {
	EclipseLinkJavaTypeMapping javaTypeMapping = this.getJavaTypeMappingForDefaults();
	return (javaTypeMapping == null) ? null : (EclipseLinkJavaCustomizer) javaTypeMapping.getCustomizer();
	}

	protected EntityMappings getEntityMappings() {
	return this.getMappingFileRoot();
	}

	protected boolean isFor(String typeName) {
	JavaResourceAbstractType customizerType = this.getResourceCustomizerType();
	return (customizerType != null) && customizerType.getTypeBinding().getQualifiedName().equals(typeName);
	}

	protected boolean isIn(IPackageFragment packageFragment) {
	JavaResourceAbstractType customizerType = this.getResourceCustomizerType();
	return (customizerType != null) && customizerType.isIn(packageFragment);
	}

	public char getCustomizerClassEnclosingTypeSeparator() {
	return '$';
	}


	// ******** refactoring ********

	public Iterable<ReplaceEdit> createRenameTypeEdits(IType originalType, String newName) {
	return this.getXmlCustomizerClassRef() != null && this.isFor(originalType.getFullyQualifiedName('.')) ?
	IterableTools.singletonIterable(this.createRenameTypeEdit(originalType, newName)) :
	IterableTools.<ReplaceEdit>emptyIterable();
	}

	protected ReplaceEdit createRenameTypeEdit(IType originalType, String newName) {
	return this.getXmlCustomizerClassRef().createRenameEdit(originalType, newName);
	}

	public Iterable<ReplaceEdit> createMoveTypeEdits(IType originalType, IPackageFragment newPackage) {
	return this.getXmlCustomizerClassRef() != null && this.isFor(originalType.getFullyQualifiedName('.')) ?
	IterableTools.singletonIterable(this.createRenamePackageEdit(newPackage.getElementName())) :
	IterableTools.<ReplaceEdit>emptyIterable();
	}

	public Iterable<ReplaceEdit> createRenamePackageEdits(IPackageFragment originalPackage, String newName) {
	return this.getXmlCustomizerClassRef() != null && this.isIn(originalPackage) ?
	IterableTools.singletonIterable(this.createRenamePackageEdit(newName)) :
	IterableTools.<ReplaceEdit>emptyIterable();
	}

	protected ReplaceEdit createRenamePackageEdit(String newName) {
	return this.getXmlCustomizerClassRef().createRenamePackageEdit(newName);
	}


	// ******** validation ********

	@Override
	public void validate(List<IMessage> messages, IReporter reporter) {
	super.validate(messages, reporter);
	this.validateCustomizerClass(messages);
	}

	protected void validateCustomizerClass(List<IMessage> messages) {
	if (this.getCustomizerClass() == null) {
	return;
	}
	if (StringTools.isBlank(this.getCustomizerClass())) {
	messages.add(
	this.buildValidationMessage(
	this.getValidationTextRange(),
	JptJpaEclipseLinkCoreValidationMessages.DESCRIPTOR_CUSTOMIZER_CLASS_NOT_SPECIFIED
	)
	);
	return;
	}

	IType customizerJdtType = JavaProjectTools.findType(this.getJavaProject(), this.getFullyQualifiedCustomizerClass());
	if (customizerJdtType == null) {
	messages.add(
	this.buildValidationMessage(
	this.getValidationTextRange(),
	JptJpaEclipseLinkCoreValidationMessages.DESCRIPTOR_CUSTOMIZER_CLASS_NOT_EXIST,
	this.getFullyQualifiedCustomizerClass()
	)
	);
	return;
	}
	if (!TypeTools.hasPublicZeroArgConstructor(customizerJdtType)) {
	messages.add(
	this.buildValidationMessage(
	this.getValidationTextRange(),
	JptJpaEclipseLinkCoreValidationMessages.DESCRIPTOR_CUSTOMIZER_CLASS_NOT_VALID,
	this.getFullyQualifiedCustomizerClass()
	)
	);
	}
	if (!TypeTools.isSubTypeOf(customizerJdtType, ECLIPSELINK_DESCRIPTOR_CUSTOMIZER_CLASS_NAME)) {
	messages.add(
	this.buildValidationMessage(
	this.getValidationTextRange(),
	JptJpaEclipseLinkCoreValidationMessages.DESCRIPTOR_CUSTOMIZER_CLASS_IMPLEMENTS_DESCRIPTOR_CUSTOMIZER,
	this.getFullyQualifiedCustomizerClass()
	)
	);
	}
	}

	public TextRange getValidationTextRange() {
	TextRange textRange = this.getXmlValidationTextRange();
	return (textRange != null) ? textRange : this.getTypeMapping().getValidationTextRange();
	}

	protected TextRange getXmlValidationTextRange() {
	XmlClassReference xmlClassRef = this.getXmlCustomizerClassRef();
	return (xmlClassRef == null) ? null : xmlClassRef.getClassNameTextRange();
	}

	// ******** completion proposals ********

	@Override
	public Iterable<String> getCompletionProposals(int pos) {
	Iterable<String> result = super.getCompletionProposals(pos);
	if (result != null) {
	return result;
	}
	if (this.customizerClassTouches(pos)) {
	return this.getCandidateClassNames();
	}
	return null;
	}

	protected Iterable<String> getCandidateClassNames() {
	return JavaProjectTools.getJavaClassNames(this.getJavaProject());
	}

	protected boolean customizerClassTouches(int pos) {
	return this.getXmlCustomizerClassRef()== null? false : this.getXmlCustomizerClassRef().classNameTouches(pos);
	}
	}