org.eclipse.rmf.reqif10.pror.edit/src/org/eclipse/rmf/reqif10/pror/provider/SpecTypeItemProvider.java - rmf/org.eclipse.rmf - Git at Google

 /*******************************************************************************
  * Copyright (c) 2011, 2012 Formal Mind GmbH and University of Dusseldorf.
  * 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:
  *     Michael Jastram - initial API and implementation
  ******************************************************************************/

 package org.eclipse.rmf.reqif10.pror.provider;

 import java.util.Collection;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Set;

 import org.eclipse.emf.common.command.Command;
 import org.eclipse.emf.common.command.CompoundCommand;
 import org.eclipse.emf.common.notify.AdapterFactory;
 import org.eclipse.emf.common.notify.Notification;
 import org.eclipse.emf.ecore.EObject;
 import org.eclipse.emf.ecore.EStructuralFeature;
 import org.eclipse.emf.ecore.InternalEObject;
 import org.eclipse.emf.ecore.impl.ENotificationImpl;
 import org.eclipse.emf.edit.domain.EditingDomain;
 import org.eclipse.emf.edit.provider.IEditingDomainItemProvider;
 import org.eclipse.emf.edit.provider.IItemLabelProvider;
 import org.eclipse.emf.edit.provider.IItemPropertyDescriptor;
 import org.eclipse.emf.edit.provider.IItemPropertySource;
 import org.eclipse.emf.edit.provider.IStructuredItemContentProvider;
 import org.eclipse.emf.edit.provider.ITreeItemContentProvider;
 import org.eclipse.emf.edit.provider.ViewerNotification;
 import org.eclipse.rmf.reqif10.AttributeDefinition;
 import org.eclipse.rmf.reqif10.ReqIF;
 import org.eclipse.rmf.reqif10.ReqIF10Factory;
 import org.eclipse.rmf.reqif10.ReqIF10Package;
 import org.eclipse.rmf.reqif10.ReqIFContent;
 import org.eclipse.rmf.reqif10.SpecElementWithAttributes;
 import org.eclipse.rmf.reqif10.SpecObject;
 import org.eclipse.rmf.reqif10.SpecRelation;
 import org.eclipse.rmf.reqif10.SpecType;
 import org.eclipse.rmf.reqif10.Specification;
 import org.eclipse.rmf.reqif10.common.util.ReqIF10Util;
 import org.eclipse.rmf.reqif10.pror.util.ProrUtil;
 import org.eclipse.rmf.reqif10.util.ReqIF10Switch;

 /**
  * This is the item provider adapter for a {@link org.eclipse.rmf.reqif10.SpecType} object.
  * <!-- begin-user-doc --> <!--
  * end-user-doc -->
  * @generated
  */
 public class SpecTypeItemProvider extends IdentifiableItemProvider implements
 		IEditingDomainItemProvider, IStructuredItemContentProvider,
 		ITreeItemContentProvider, IItemLabelProvider, IItemPropertySource {
 	/**
 	 * This constructs an instance from a factory and a notifier. <!--
 	 * begin-user-doc --> <!-- end-user-doc -->
 	 *
 	 * @generated
 	 */
 	public SpecTypeItemProvider(AdapterFactory adapterFactory) {
 		super(adapterFactory);
 	}

 	/**
 	 * This returns the property descriptors for the adapted class. <!--
 	 * begin-user-doc --> <!-- end-user-doc -->
 	 *
 	 * @generated
 	 */
 	@Override
 	public List<IItemPropertyDescriptor> getPropertyDescriptors(Object object) {
 		if (itemPropertyDescriptors == null) {
 			super.getPropertyDescriptors(object);

 		}
 		return itemPropertyDescriptors;
 	}

 	/**
 	 * This specifies how to implement {@link #getChildren} and is used to deduce an appropriate feature for an
 	 * {@link org.eclipse.emf.edit.command.AddCommand}, {@link org.eclipse.emf.edit.command.RemoveCommand} or
 	 * {@link org.eclipse.emf.edit.command.MoveCommand} in {@link #createCommand}.
 	 * <!-- begin-user-doc --> <!-- end-user-doc -->
 	 * @generated
 	 */
 	@Override
 	public Collection<? extends EStructuralFeature> getChildrenFeatures(
 			Object object) {
 		if (childrenFeatures == null) {
 			super.getChildrenFeatures(object);
 			childrenFeatures.add(ReqIF10Package.Literals.SPEC_TYPE__SPEC_ATTRIBUTES);
 		}
 		return childrenFeatures;
 	}

 	/**
 	 * <!-- begin-user-doc --> <!-- end-user-doc -->
 	 * @generated
 	 */
 	@Override
 	protected EStructuralFeature getChildFeature(Object object, Object child) {
 		// Check the type of the specified child object and return the proper feature to use for
 		// adding (see {@link AddCommand}) it as a child.

 		return super.getChildFeature(object, child);
 	}

 	/**
 	 * <!-- begin-user-doc -->
 	 * <!-- end-user-doc -->
 	 * @generated
 	 */
 	@Override
 	protected boolean shouldComposeCreationImage() {
 		return true;
 	}

 	@Override
 	public Object getImage(Object object) {
 		return overlayImage(object, getResourceLocator().getImage("full/obj16/SpecType.png"));
 	}

 	/**
 	 * This returns the label text for the adapted class.
 	 * <!-- begin-user-doc
 	 * --> <!-- end-user-doc -->
 	 * @generated NOT
 	 */
 	@Override
 	public String getText(Object object) {
 		String typeName = ProrUtil.substractPrefixPostfix(object, "", "TypeImpl");
 		String label = ((SpecType)object).getLongName();
 		label = label == null || label.length() == 0 ?
 			getString("_UI_Unnamed_Element") :
 			label;
 		return label + " (" + typeName + ")";
 	}

 	/**
 	 * This handles model notifications by calling {@link #updateChildren} to update any cached
 	 * children and by creating a viewer notification, which it passes to {@link #fireNotifyChanged}.
 	 * <!-- begin-user-doc -->
 	 * On any change do we also notifiy all {@link SpecElementWithAttributes} that use this type.
 	 * <!-- end-user-doc -->
 	 * @generated NOT
 	 */
 	@Override
 	public void notifyChanged(Notification notification) {
 		updateChildren(notification);

 		switch (notification.getFeatureID(SpecType.class)) {
 		case ReqIF10Package.SPEC_TYPE__SPEC_ATTRIBUTES:
 			fireNotifyChanged(new ViewerNotification(notification,
 					notification.getNotifier(), true, false));
 			// no return here on purpose!
 		case ReqIF10Package.SPEC_TYPE__LONG_NAME:
 			notifyAllSpecElementWithAttributesTypeChange(
 					(SpecType) notification.getNotifier(), adapterFactory);
 			// no return here on purpose!
 		}
 		super.notifyChanged(notification);
 	}

 	/**
 	 * Notifies all SpecElements when any aspect of the associated SpecType changes.
 	 */
 	private void notifyAllSpecElementWithAttributesTypeChange(
 			final SpecType specType, AdapterFactory adapterFactory) {
 		ReqIF reqif = ReqIF10Util.getReqIF(specType);
 		if (reqif != null) {
 			ReqIF10Switch<SpecElementWithAttributes> visitor = new ReqIF10Switch<SpecElementWithAttributes>() {

 				@Override
 				public SpecElementWithAttributes caseSpecObject(
 						SpecObject object) {
 					object.eNotify(new ENotificationImpl(
 							(InternalEObject) object, Notification.SET,
 							ReqIF10Package.Literals.SPEC_OBJECT__TYPE,
 							specType, specType));
 					return object;
 				}

 				@Override
 				public SpecElementWithAttributes caseSpecification(
 						Specification object) {
 					object.eNotify(new ENotificationImpl(
 							(InternalEObject) object, Notification.SET,
 							ReqIF10Package.Literals.SPECIFICATION__TYPE,
 							specType, specType));
 					return object;
 				}

 				@Override
 				public SpecElementWithAttributes caseSpecRelation(
 						SpecRelation object) {
 					object.eNotify(new ENotificationImpl(
 							(InternalEObject) object, Notification.SET,
 							ReqIF10Package.Literals.SPEC_RELATION__TYPE,
 							specType, specType));
 					return object;
 				}
 			};

 			ProrUtil.visitAllSpecElementsWithAttributes(reqif, visitor);
 		}
 	}

 	/**
 	 * This adds {@link org.eclipse.emf.edit.command.CommandParameter}s
 	 * describing the children that can be created under this object. <!--
 	 * begin-user-doc --> <!-- end-user-doc -->
 	 *
 	 * @generated
 	 */
 	@Override
 	protected void collectNewChildDescriptors(
 			Collection<Object> newChildDescriptors, Object object) {
 		super.collectNewChildDescriptors(newChildDescriptors, object);

 		newChildDescriptors.add
 			(createChildParameter
 				(ReqIF10Package.Literals.SPEC_TYPE__SPEC_ATTRIBUTES,
 				 ReqIF10Factory.eINSTANCE.createAttributeDefinitionXHTML()));

 		newChildDescriptors.add
 			(createChildParameter
 				(ReqIF10Package.Literals.SPEC_TYPE__SPEC_ATTRIBUTES,
 				 ReqIF10Factory.eINSTANCE.createAttributeDefinitionBoolean()));

 		newChildDescriptors.add
 			(createChildParameter
 				(ReqIF10Package.Literals.SPEC_TYPE__SPEC_ATTRIBUTES,
 				 ReqIF10Factory.eINSTANCE.createAttributeDefinitionDate()));

 		newChildDescriptors.add
 			(createChildParameter
 				(ReqIF10Package.Literals.SPEC_TYPE__SPEC_ATTRIBUTES,
 				 ReqIF10Factory.eINSTANCE.createAttributeDefinitionEnumeration()));

 		newChildDescriptors.add
 			(createChildParameter
 				(ReqIF10Package.Literals.SPEC_TYPE__SPEC_ATTRIBUTES,
 				 ReqIF10Factory.eINSTANCE.createAttributeDefinitionInteger()));

 		newChildDescriptors.add
 			(createChildParameter
 				(ReqIF10Package.Literals.SPEC_TYPE__SPEC_ATTRIBUTES,
 				 ReqIF10Factory.eINSTANCE.createAttributeDefinitionReal()));

 		newChildDescriptors.add
 			(createChildParameter
 				(ReqIF10Package.Literals.SPEC_TYPE__SPEC_ATTRIBUTES,
 				 ReqIF10Factory.eINSTANCE.createAttributeDefinitionString()));
 	}

 	/**
 	 * If we add an AttributeDefinition, we also have to update all
 	 * {@link SpecElementWithAttributes} that use it. We do this by re-setting
 	 * the type on those specElements.
 	 */
 	@Override
 	protected Command createAddCommand(EditingDomain domain, EObject owner,
 			EStructuralFeature feature, Collection<?> collection, int index) {
 		if (feature == ReqIF10Package.Literals.SPEC_TYPE__SPEC_ATTRIBUTES) {
 			SpecType specType = (SpecType) owner;
 			Set<Object> attrs = new HashSet<Object>(
 					specType.getSpecAttributes());
 			attrs.addAll(collection);
 			CompoundCommand cmd = adjustValuesForSpecAttributesVisitor(domain,
 					specType, attrs);
 			cmd.append(super.createAddCommand(domain, owner, feature,
 					collection, index));
 			return cmd;
 		}
 		return super
 				.createAddCommand(domain, owner, feature, collection, index);
 	}

 	/**
 	 * If we add an AttributeDefinition, we also have to update all
 	 * {@link SpecElementWithAttributes} that use it. We do this by re-setting
 	 * the type on those specElements.
 	 */
 	@Override
 	protected Command createRemoveCommand(EditingDomain domain, EObject owner,
 			EStructuralFeature feature, Collection<?> collection) {
 		if (feature == ReqIF10Package.Literals.SPEC_TYPE__SPEC_ATTRIBUTES) {
 			SpecType specType = (SpecType) owner;
 			Set<Object> attrs = new HashSet<Object>(
 					specType.getSpecAttributes());
 			attrs.removeAll(collection);
 			CompoundCommand cmd = adjustValuesForSpecAttributesVisitor(domain,
 					specType, attrs);
 			cmd.append(super.createRemoveCommand(domain, owner, feature,
 					collection));
 			return cmd;
 		}
 		return super.createRemoveCommand(domain, owner, feature, collection);
 	}

 	/**
 	 * Builds a command that adjusts values to SpecElements that have the given
 	 * type.
 	 */
 	private CompoundCommand adjustValuesForSpecAttributesVisitor(
 			final EditingDomain domain, final SpecType specType,
 			final Collection<?> newAttributeDefinitions) {
 		final CompoundCommand cmd = new CompoundCommand();
 		ReqIF reqif = ReqIF10Util.getReqIF(specType);
 		if (reqif == null) {
 			return cmd;
 		}

 		ReqIF10Switch<?> visitor = new ReqIF10Switch<SpecElementWithAttributes>() {
 			@SuppressWarnings("unchecked")
 			@Override
 			public SpecElementWithAttributes caseSpecElementWithAttributes(
 					SpecElementWithAttributes object) {
 				SpecType type = ReqIF10Util.getSpecType(object);
 				if (specType.equals(type)) {
 					CompoundCommand adjustValuesCommand = ProrUtil
 							.createValueAdjustCommand(
 									domain,
 									object,
 									(Collection<AttributeDefinition>) newAttributeDefinitions);
 					if (!adjustValuesCommand.isEmpty()) {
 						cmd.append(adjustValuesCommand);
 					}
 				}
 				return object;
 			}
 		};
 		ProrUtil.visitAllSpecElementsWithAttributes(reqif, visitor);
 		return cmd;
 	}

 	/**
 	 * Use the virtual intermediate provider as the parent, rather than
 	 * {@link ReqIFContentItemProvider}.
 	 */
 	@Override
 	public Object getParent(Object object) {
 		ReqIFContent content = ((ReqIFContent) super.getParent(object));
 		if (content == null)
 			return null;
 		ReqIFContentItemProvider reqifProvider = (ReqIFContentItemProvider) ProrUtil
 				.getItemProvider(adapterFactory, content);
 		return reqifProvider != null ? reqifProvider
 				.getVirtualSpecTypes(content) : null;
 	}

 }
	/*******************************************************************************
	* Copyright (c) 2011, 2012 Formal Mind GmbH and University of Dusseldorf.
	* 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:
	* Michael Jastram - initial API and implementation
	******************************************************************************/

	package org.eclipse.rmf.reqif10.pror.provider;

	import java.util.Collection;
	import java.util.HashSet;
	import java.util.List;
	import java.util.Set;

	import org.eclipse.emf.common.command.Command;
	import org.eclipse.emf.common.command.CompoundCommand;
	import org.eclipse.emf.common.notify.AdapterFactory;
	import org.eclipse.emf.common.notify.Notification;
	import org.eclipse.emf.ecore.EObject;
	import org.eclipse.emf.ecore.EStructuralFeature;
	import org.eclipse.emf.ecore.InternalEObject;
	import org.eclipse.emf.ecore.impl.ENotificationImpl;
	import org.eclipse.emf.edit.domain.EditingDomain;
	import org.eclipse.emf.edit.provider.IEditingDomainItemProvider;
	import org.eclipse.emf.edit.provider.IItemLabelProvider;
	import org.eclipse.emf.edit.provider.IItemPropertyDescriptor;
	import org.eclipse.emf.edit.provider.IItemPropertySource;
	import org.eclipse.emf.edit.provider.IStructuredItemContentProvider;
	import org.eclipse.emf.edit.provider.ITreeItemContentProvider;
	import org.eclipse.emf.edit.provider.ViewerNotification;
	import org.eclipse.rmf.reqif10.AttributeDefinition;
	import org.eclipse.rmf.reqif10.ReqIF;
	import org.eclipse.rmf.reqif10.ReqIF10Factory;
	import org.eclipse.rmf.reqif10.ReqIF10Package;
	import org.eclipse.rmf.reqif10.ReqIFContent;
	import org.eclipse.rmf.reqif10.SpecElementWithAttributes;
	import org.eclipse.rmf.reqif10.SpecObject;
	import org.eclipse.rmf.reqif10.SpecRelation;
	import org.eclipse.rmf.reqif10.SpecType;
	import org.eclipse.rmf.reqif10.Specification;
	import org.eclipse.rmf.reqif10.common.util.ReqIF10Util;
	import org.eclipse.rmf.reqif10.pror.util.ProrUtil;
	import org.eclipse.rmf.reqif10.util.ReqIF10Switch;

	/**
	* This is the item provider adapter for a {@link org.eclipse.rmf.reqif10.SpecType} object.
	* <!-- begin-user-doc --> <!--
	* end-user-doc -->
	* @generated
	*/
	public class SpecTypeItemProvider extends IdentifiableItemProvider implements
	IEditingDomainItemProvider, IStructuredItemContentProvider,
	ITreeItemContentProvider, IItemLabelProvider, IItemPropertySource {
	/**
	* This constructs an instance from a factory and a notifier. <!--
	* begin-user-doc --> <!-- end-user-doc -->
	*
	* @generated
	*/
	public SpecTypeItemProvider(AdapterFactory adapterFactory) {
	super(adapterFactory);
	}

	/**
	* This returns the property descriptors for the adapted class. <!--
	* begin-user-doc --> <!-- end-user-doc -->
	*
	* @generated
	*/
	@Override
	public List<IItemPropertyDescriptor> getPropertyDescriptors(Object object) {
	if (itemPropertyDescriptors == null) {
	super.getPropertyDescriptors(object);

	}
	return itemPropertyDescriptors;
	}

	/**
	* This specifies how to implement {@link #getChildren} and is used to deduce an appropriate feature for an
	* {@link org.eclipse.emf.edit.command.AddCommand}, {@link org.eclipse.emf.edit.command.RemoveCommand} or
	* {@link org.eclipse.emf.edit.command.MoveCommand} in {@link #createCommand}.
	* <!-- begin-user-doc --> <!-- end-user-doc -->
	* @generated
	*/
	@Override
	public Collection<? extends EStructuralFeature> getChildrenFeatures(
	Object object) {
	if (childrenFeatures == null) {
	super.getChildrenFeatures(object);
	childrenFeatures.add(ReqIF10Package.Literals.SPEC_TYPE__SPEC_ATTRIBUTES);
	}
	return childrenFeatures;
	}

	/**
	* <!-- begin-user-doc --> <!-- end-user-doc -->
	* @generated
	*/
	@Override
	protected EStructuralFeature getChildFeature(Object object, Object child) {
	// Check the type of the specified child object and return the proper feature to use for
	// adding (see {@link AddCommand}) it as a child.

	return super.getChildFeature(object, child);
	}

	/**
	* <!-- begin-user-doc -->
	* <!-- end-user-doc -->
	* @generated
	*/
	@Override
	protected boolean shouldComposeCreationImage() {
	return true;
	}

	@Override
	public Object getImage(Object object) {
	return overlayImage(object, getResourceLocator().getImage("full/obj16/SpecType.png"));
	}

	/**
	* This returns the label text for the adapted class.
	* <!-- begin-user-doc
	* --> <!-- end-user-doc -->
	* @generated NOT
	*/
	@Override
	public String getText(Object object) {
	String typeName = ProrUtil.substractPrefixPostfix(object, "", "TypeImpl");
	String label = ((SpecType)object).getLongName();
	label = label == null \|\| label.length() == 0 ?
	getString("_UI_Unnamed_Element") :
	label;
	return label + " (" + typeName + ")";
	}

	/**
	* This handles model notifications by calling {@link #updateChildren} to update any cached
	* children and by creating a viewer notification, which it passes to {@link #fireNotifyChanged}.
	* <!-- begin-user-doc -->
	* On any change do we also notifiy all {@link SpecElementWithAttributes} that use this type.
	* <!-- end-user-doc -->
	* @generated NOT
	*/
	@Override
	public void notifyChanged(Notification notification) {
	updateChildren(notification);

	switch (notification.getFeatureID(SpecType.class)) {
	case ReqIF10Package.SPEC_TYPE__SPEC_ATTRIBUTES:
	fireNotifyChanged(new ViewerNotification(notification,
	notification.getNotifier(), true, false));
	// no return here on purpose!
	case ReqIF10Package.SPEC_TYPE__LONG_NAME:
	notifyAllSpecElementWithAttributesTypeChange(
	(SpecType) notification.getNotifier(), adapterFactory);
	// no return here on purpose!
	}
	super.notifyChanged(notification);
	}

	/**
	* Notifies all SpecElements when any aspect of the associated SpecType changes.
	*/
	private void notifyAllSpecElementWithAttributesTypeChange(
	final SpecType specType, AdapterFactory adapterFactory) {
	ReqIF reqif = ReqIF10Util.getReqIF(specType);
	if (reqif != null) {
	ReqIF10Switch<SpecElementWithAttributes> visitor = new ReqIF10Switch<SpecElementWithAttributes>() {

	@Override
	public SpecElementWithAttributes caseSpecObject(
	SpecObject object) {
	object.eNotify(new ENotificationImpl(
	(InternalEObject) object, Notification.SET,
	ReqIF10Package.Literals.SPEC_OBJECT__TYPE,
	specType, specType));
	return object;
	}

	@Override
	public SpecElementWithAttributes caseSpecification(
	Specification object) {
	object.eNotify(new ENotificationImpl(
	(InternalEObject) object, Notification.SET,
	ReqIF10Package.Literals.SPECIFICATION__TYPE,
	specType, specType));
	return object;
	}

	@Override
	public SpecElementWithAttributes caseSpecRelation(
	SpecRelation object) {
	object.eNotify(new ENotificationImpl(
	(InternalEObject) object, Notification.SET,
	ReqIF10Package.Literals.SPEC_RELATION__TYPE,
	specType, specType));
	return object;
	}
	};

	ProrUtil.visitAllSpecElementsWithAttributes(reqif, visitor);
	}
	}

	/**
	* This adds {@link org.eclipse.emf.edit.command.CommandParameter}s
	* describing the children that can be created under this object. <!--
	* begin-user-doc --> <!-- end-user-doc -->
	*
	* @generated
	*/
	@Override
	protected void collectNewChildDescriptors(
	Collection<Object> newChildDescriptors, Object object) {
	super.collectNewChildDescriptors(newChildDescriptors, object);

	newChildDescriptors.add
	(createChildParameter
	(ReqIF10Package.Literals.SPEC_TYPE__SPEC_ATTRIBUTES,
	ReqIF10Factory.eINSTANCE.createAttributeDefinitionXHTML()));

	newChildDescriptors.add
	(createChildParameter
	(ReqIF10Package.Literals.SPEC_TYPE__SPEC_ATTRIBUTES,
	ReqIF10Factory.eINSTANCE.createAttributeDefinitionBoolean()));

	newChildDescriptors.add
	(createChildParameter
	(ReqIF10Package.Literals.SPEC_TYPE__SPEC_ATTRIBUTES,
	ReqIF10Factory.eINSTANCE.createAttributeDefinitionDate()));

	newChildDescriptors.add
	(createChildParameter
	(ReqIF10Package.Literals.SPEC_TYPE__SPEC_ATTRIBUTES,
	ReqIF10Factory.eINSTANCE.createAttributeDefinitionEnumeration()));

	newChildDescriptors.add
	(createChildParameter
	(ReqIF10Package.Literals.SPEC_TYPE__SPEC_ATTRIBUTES,
	ReqIF10Factory.eINSTANCE.createAttributeDefinitionInteger()));

	newChildDescriptors.add
	(createChildParameter
	(ReqIF10Package.Literals.SPEC_TYPE__SPEC_ATTRIBUTES,
	ReqIF10Factory.eINSTANCE.createAttributeDefinitionReal()));

	newChildDescriptors.add
	(createChildParameter
	(ReqIF10Package.Literals.SPEC_TYPE__SPEC_ATTRIBUTES,
	ReqIF10Factory.eINSTANCE.createAttributeDefinitionString()));
	}

	/**
	* If we add an AttributeDefinition, we also have to update all
	* {@link SpecElementWithAttributes} that use it. We do this by re-setting
	* the type on those specElements.
	*/
	@Override
	protected Command createAddCommand(EditingDomain domain, EObject owner,
	EStructuralFeature feature, Collection<?> collection, int index) {
	if (feature == ReqIF10Package.Literals.SPEC_TYPE__SPEC_ATTRIBUTES) {
	SpecType specType = (SpecType) owner;
	Set<Object> attrs = new HashSet<Object>(
	specType.getSpecAttributes());
	attrs.addAll(collection);
	CompoundCommand cmd = adjustValuesForSpecAttributesVisitor(domain,
	specType, attrs);
	cmd.append(super.createAddCommand(domain, owner, feature,
	collection, index));
	return cmd;
	}
	return super
	.createAddCommand(domain, owner, feature, collection, index);
	}

	/**
	* If we add an AttributeDefinition, we also have to update all
	* {@link SpecElementWithAttributes} that use it. We do this by re-setting
	* the type on those specElements.
	*/
	@Override
	protected Command createRemoveCommand(EditingDomain domain, EObject owner,
	EStructuralFeature feature, Collection<?> collection) {
	if (feature == ReqIF10Package.Literals.SPEC_TYPE__SPEC_ATTRIBUTES) {
	SpecType specType = (SpecType) owner;
	Set<Object> attrs = new HashSet<Object>(
	specType.getSpecAttributes());
	attrs.removeAll(collection);
	CompoundCommand cmd = adjustValuesForSpecAttributesVisitor(domain,
	specType, attrs);
	cmd.append(super.createRemoveCommand(domain, owner, feature,
	collection));
	return cmd;
	}
	return super.createRemoveCommand(domain, owner, feature, collection);
	}

	/**
	* Builds a command that adjusts values to SpecElements that have the given
	* type.
	*/
	private CompoundCommand adjustValuesForSpecAttributesVisitor(
	final EditingDomain domain, final SpecType specType,
	final Collection<?> newAttributeDefinitions) {
	final CompoundCommand cmd = new CompoundCommand();
	ReqIF reqif = ReqIF10Util.getReqIF(specType);
	if (reqif == null) {
	return cmd;
	}

	ReqIF10Switch<?> visitor = new ReqIF10Switch<SpecElementWithAttributes>() {
	@SuppressWarnings("unchecked")
	@Override
	public SpecElementWithAttributes caseSpecElementWithAttributes(
	SpecElementWithAttributes object) {
	SpecType type = ReqIF10Util.getSpecType(object);
	if (specType.equals(type)) {
	CompoundCommand adjustValuesCommand = ProrUtil
	.createValueAdjustCommand(
	domain,
	object,
	(Collection<AttributeDefinition>) newAttributeDefinitions);
	if (!adjustValuesCommand.isEmpty()) {
	cmd.append(adjustValuesCommand);
	}
	}
	return object;
	}
	};
	ProrUtil.visitAllSpecElementsWithAttributes(reqif, visitor);
	return cmd;
	}

	/**
	* Use the virtual intermediate provider as the parent, rather than
	* {@link ReqIFContentItemProvider}.
	*/
	@Override
	public Object getParent(Object object) {
	ReqIFContent content = ((ReqIFContent) super.getParent(object));
	if (content == null)
	return null;
	ReqIFContentItemProvider reqifProvider = (ReqIFContentItemProvider) ProrUtil
	.getItemProvider(adapterFactory, content);
	return reqifProvider != null ? reqifProvider
	.getVirtualSpecTypes(content) : null;
	}

	}