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

 /*******************************************************************************
  * Copyright (c) 2011, 2013 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 static org.eclipse.rmf.reqif10.ReqIF10Package.Literals.REQ_IF_CONTENT__SPEC_OBJECTS;
 import static org.eclipse.rmf.reqif10.ReqIF10Package.Literals.SPEC_HIERARCHY__CHILDREN;
 import static org.eclipse.rmf.reqif10.ReqIF10Package.Literals.SPEC_HIERARCHY__OBJECT;
 import static org.eclipse.rmf.reqif10.ReqIF10Package.Literals.SPEC_OBJECT__TYPE;

 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.GregorianCalendar;
 import java.util.List;

 import org.eclipse.emf.common.command.Command;
 import org.eclipse.emf.common.command.CompoundCommand;
 import org.eclipse.emf.common.command.UnexecutableCommand;
 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.edit.command.AddCommand;
 import org.eclipse.emf.edit.command.DragAndDropCommand;
 import org.eclipse.emf.edit.command.SetCommand;
 import org.eclipse.emf.edit.domain.EditingDomain;
 import org.eclipse.emf.edit.provider.ComposeableAdapterFactory;
 import org.eclipse.emf.edit.provider.IItemPropertyDescriptor;
 import org.eclipse.emf.edit.provider.ItemPropertyDescriptor;
 import org.eclipse.emf.edit.provider.ItemPropertyDescriptorDecorator;
 import org.eclipse.emf.edit.provider.ItemProviderAdapter;
 import org.eclipse.emf.edit.provider.ViewerNotification;
 import org.eclipse.rmf.reqif10.ReqIF10Factory;
 import org.eclipse.rmf.reqif10.ReqIF10Package;
 import org.eclipse.rmf.reqif10.ReqIFContent;
 import org.eclipse.rmf.reqif10.SpecHierarchy;
 import org.eclipse.rmf.reqif10.SpecObject;
 import org.eclipse.rmf.reqif10.SpecObjectType;
 import org.eclipse.rmf.reqif10.SpecType;
 import org.eclipse.rmf.reqif10.common.util.ReqIF10Util;
 import org.eclipse.rmf.reqif10.pror.util.ConfigurationUtil;
 import org.eclipse.rmf.reqif10.pror.util.ProrUtil;

 /**
  * This is the item provider adapter for a
  * {@link org.eclipse.rmf.reqif10.SpecHierarchy} object. <!-- begin-user-doc -->
  * <!-- end-user-doc -->
  *
  * @generated
  */
 public class SpecHierarchyItemProvider extends
 		AccessControlledElementItemProvider {
 	/**
 	 * This constructs an instance from a factory and a notifier. <!--
 	 * begin-user-doc --> <!-- end-user-doc -->
 	 *
 	 * @generated
 	 */
 	public SpecHierarchyItemProvider(AdapterFactory adapterFactory) {
 		super(adapterFactory);
 	}

 	/**
 	 * This returns the property descriptors for the adapted class. <!--
 	 * begin-user-doc --> Adding the properties from the {@link SpecObject}
 	 * <p>
 	 *
 	 * NOTE: In order for this to work, the properties must not be cached. We
 	 * achieve this by setting itemPropertyDescriptors to null in the subclasses
 	 * in {@link #getPropertyDescriptors(Object)}
 	 * <p>
 	 *
 	 * <!-- end-user-doc -->
 	 *
 	 * @generated NOT
 	 */
 	@Override
 	public List<IItemPropertyDescriptor> getPropertyDescriptors(
 			Object specHierarchy) {
 		itemPropertyDescriptors = null;
 		super.getPropertyDescriptors(specHierarchy);

 		// We need to separate the SpecHierarchy's properties from the
 		// SpecObject's properties. Therefore, we rename the
 		// Category.
 		ArrayList<IItemPropertyDescriptor> newDescriptors = new ArrayList<IItemPropertyDescriptor>();
 		for (IItemPropertyDescriptor descriptor : itemPropertyDescriptors) {
 			newDescriptors.add(new ItemPropertyDescriptorDecorator(
 					specHierarchy, descriptor) {
 				public String getCategory(Object thisObject) {
 					return getString("_UI_SpecHierarchyPropertyCategory");
 				}
 			});
 		}
 		itemPropertyDescriptors = newDescriptors;

 		SpecObject specObject = ((SpecHierarchy) specHierarchy).getObject();
 		if (specObject != null) {
 			ItemProviderAdapter specObjectItemProvider = ProrUtil
 					.getItemProvider(adapterFactory, specObject);
 			itemPropertyDescriptors.addAll(specObjectItemProvider
 					.getPropertyDescriptors(specObject));
 		}
 		addTableInternalPropertyDescriptor(specHierarchy);
 		addObjectPropertyDescriptor(specHierarchy);
 		addEditableAttsPropertyDescriptor(specHierarchy);
 		return itemPropertyDescriptors;
 	}

 	/**
 	 * This adds a property descriptor for the Table Internal feature. <!--
 	 * begin-user-doc --> <!-- end-user-doc -->
 	 *
 	 * @generated
 	 */
 	protected void addTableInternalPropertyDescriptor(Object object) {
 		itemPropertyDescriptors.add(createItemPropertyDescriptor(
 				((ComposeableAdapterFactory) adapterFactory)
 						.getRootAdapterFactory(),
 				getResourceLocator(),
 				getString("_UI_SpecHierarchy_tableInternal_feature"),
 				getString("_UI_PropertyDescriptor_description",
 						"_UI_SpecHierarchy_tableInternal_feature",
 						"_UI_SpecHierarchy_type"),
 				ReqIF10Package.Literals.SPEC_HIERARCHY__TABLE_INTERNAL, true,
 				false, false, ItemPropertyDescriptor.BOOLEAN_VALUE_IMAGE,
 				getString("_UI_SpecHierarchyPropertyCategory"), null));
 	}

 	/**
 	 * This adds a property descriptor for the Object feature. <!--
 	 * begin-user-doc --> <!-- end-user-doc -->
 	 *
 	 * @generated
 	 */
 	protected void addObjectPropertyDescriptor(Object object) {
 		itemPropertyDescriptors.add(createItemPropertyDescriptor(
 				((ComposeableAdapterFactory) adapterFactory)
 						.getRootAdapterFactory(),
 				getResourceLocator(),
 				getString("_UI_SpecHierarchy_object_feature"),
 				getString("_UI_PropertyDescriptor_description",
 						"_UI_SpecHierarchy_object_feature",
 						"_UI_SpecHierarchy_type"),
 				ReqIF10Package.Literals.SPEC_HIERARCHY__OBJECT, true, false,
 				true, null, getString("_UI_SpecHierarchyPropertyCategory"),
 				null));
 	}

 	/**
 	 * This adds a property descriptor for the Editable Atts feature. <!--
 	 * begin-user-doc --> <!-- end-user-doc -->
 	 *
 	 * @generated
 	 */
 	protected void addEditableAttsPropertyDescriptor(Object object) {
 		itemPropertyDescriptors.add(createItemPropertyDescriptor(
 				((ComposeableAdapterFactory) adapterFactory)
 						.getRootAdapterFactory(),
 				getResourceLocator(),
 				getString("_UI_SpecHierarchy_editableAtts_feature"),
 				getString("_UI_PropertyDescriptor_description",
 						"_UI_SpecHierarchy_editableAtts_feature",
 						"_UI_SpecHierarchy_type"),
 				ReqIF10Package.Literals.SPEC_HIERARCHY__EDITABLE_ATTS, true,
 				false, true, null,
 				getString("_UI_SpecHierarchyPropertyCategory"), null));
 	}

 	/**
 	 * 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_HIERARCHY__CHILDREN);
 		}
 		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) {
 		if (((SpecHierarchy) object).getObject() == null) {
 			return overlayImage(
 					object,
 					getResourceLocator().getImage(
 							"full/obj16/SpecHierarchy.png"));
 		}
 		return overlayImage(object,
 				getResourceLocator().getImage("full/obj16/SpecObject.png"));
 	}

 	/**
 	 * This returns the label text for the adapted class. <!-- begin-user-doc
 	 * --> <!-- end-user-doc -->
 	 *
 	 * @generated NOT
 	 */
 	@Override
 	public String getText(Object object) {
 		SpecObject specObject = ((SpecHierarchy) object).getObject();
 		if (specObject != null) {
 			return ConfigurationUtil.getSpecElementLabel(specObject,
 					adapterFactory);
 		}
 		return getString("_UI_SpecHierarchy_type");
 	}

 	/**
 	 * 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 --> Also
 	 * fire a notification upon change of the Object <!-- end-user-doc -->
 	 *
 	 * @generated NOT
 	 */
 	@Override
 	public void notifyChanged(Notification notification) {
 		updateChildren(notification);

 		switch (notification.getFeatureID(SpecHierarchy.class)) {
 		case ReqIF10Package.SPEC_HIERARCHY__TABLE_INTERNAL:
 			fireNotifyChanged(new ViewerNotification(notification,
 					notification.getNotifier(), false, true));
 			return;
 		case ReqIF10Package.SPEC_HIERARCHY__CHILDREN:
 			fireNotifyChanged(new ViewerNotification(notification,
 					notification.getNotifier(), true, false));
 			return;
 		case ReqIF10Package.SPEC_HIERARCHY__OBJECT:
 			fireNotifyChanged(new ViewerNotification(notification,
 					notification.getNotifier(), true, true));
 			return;
 		}
 		super.notifyChanged(notification);
 	}

 	/**
 	 * This adds {@link org.eclipse.emf.edit.command.CommandParameter}s
 	 * describing the children that can be created under this object. <!--
 	 * begin-user-doc --> Adding ChildDescriptors for SpecHierarchies with
 	 * attached specObjects. <!-- end-user-doc -->
 	 *
 	 * @generated NOT
 	 */
 	@Override
 	protected void collectNewChildDescriptors(
 			Collection<Object> newChildDescriptors, Object object) {
 		super.collectNewChildDescriptors(newChildDescriptors, object);

 		newChildDescriptors.add(createChildParameter(SPEC_HIERARCHY__CHILDREN,
 				ReqIF10Factory.eINSTANCE.createSpecHierarchy()));

 		// Allow creation of new untyped SpecObjects
 		newChildDescriptors.add(createChildParameter(SPEC_HIERARCHY__CHILDREN,
 				ReqIF10Factory.eINSTANCE.createSpecObject()));

 		// Allow creation of typed SpecObjects
 		ProrUtil.collectNewChildDescriptorsForTypeCreators(newChildDescriptors,
 				object, SPEC_HIERARCHY__CHILDREN, SpecObjectType.class);

 	}

 	/**
 	 * {@inheritDoc}
 	 */
 	@Override
 	public String getCreateChildToolTipText(Object owner, Object feature,
 			Object child, Collection<?> selection) {
 		if (child instanceof SpecHierarchy) {
 			return "Adding SpecHierarchy";
 		}
 		return super
 				.getCreateChildToolTipText(owner, feature, child, selection);
 	}

 	/**
 	 * <p>
 	 * In addition to the regular functionality (creating a SpecHierarchy child
 	 * object), this method allows a SpecObject or a SpecType as an argument:
 	 * </p>
 	 *
 	 * Note that this is almost the same as
 	 * {@link SpecificationItemProvider#createCreateChildCommand(EditingDomain, EObject, EStructuralFeature, Object, int, Collection)}
 	 * .
 	 *
 	 * @param value
 	 *            instanceof {@link SpecType}: A new SpecObject with the given
 	 *            SpecType is created, and a SpecHierarchy is added that is
 	 *            associated with the newly created SpecObject.
 	 *
 	 * @param value
 	 *            instanceof {@link SpecObject}: The SpecObject is added to a
 	 *            new SpecHierarchy, which is then added.
 	 */
 	@Override
 	protected Command createCreateChildCommand(EditingDomain domain,
 			EObject owner, EStructuralFeature feature, Object value, int index,
 			Collection<?> collection) {

 		if (value instanceof SpecType) {
 			ReqIFContent content = ReqIF10Util.getReqIF(owner).getCoreContent();
 			SpecObject specObject = ReqIF10Factory.eINSTANCE.createSpecObject();
 			SpecHierarchy specHierarchy = ReqIF10Factory.eINSTANCE
 					.createSpecHierarchy();

 			CompoundCommand cmd = ProrUtil.createAddTypedElementCommand(
 					content, REQ_IF_CONTENT__SPEC_OBJECTS, specObject,
 					SPEC_OBJECT__TYPE, (SpecType) value, -1, 3, domain,
 					adapterFactory);
 			cmd.append(AddCommand.create(domain, owner,
 					SPEC_HIERARCHY__CHILDREN, specHierarchy, index));
 			cmd.append(SetCommand.create(domain, specHierarchy,
 					SPEC_HIERARCHY__OBJECT, specObject));
 			return cmd;
 		}
 		if (value instanceof SpecObject) {
 			Object icon = ProrUtil.getItemProvider(adapterFactory, value)
 					.getImage(value);
 			CompoundCommand cmd = ProrUtil.createCompoundCommandWithAddIcon(
 					icon, 0);
 			cmd.setLabel("Adding SpecObject");
 			cmd.setDescription("Adding SpecObject");
 			SpecHierarchy specHierarchy = ReqIF10Factory.eINSTANCE
 					.createSpecHierarchy();
 			cmd.append(AddCommand.create(domain, owner,
 					SPEC_HIERARCHY__CHILDREN, specHierarchy, index));
 			cmd.append(AddCommand.create(domain, ReqIF10Util.getReqIF(owner)
 					.getCoreContent(), REQ_IF_CONTENT__SPEC_OBJECTS, value));
 			cmd.append(SetCommand.create(domain, specHierarchy,
 					SPEC_HIERARCHY__OBJECT, value));
 			return cmd;
 		}

 		return super.createCreateChildCommand(domain, owner, feature, value,
 				index, collection);
 	}

 	/**
 	 * Handles link-operations by creating SpecRelations.
 	 */
 	@Override
 	protected Command createDragAndDropCommand(EditingDomain domain,
 			Object owner, float location, int operations, int operation,
 			Collection<?> collection) {
 		//
 		// // Ensure that the ID is unique if it's a copy operation.
 		// if (owner instanceof EObject
 		// && operation == DragAndDropFeedback.DROP_COPY) {
 		// // We must create a copy, as the collection is not detached from the
 		// model yet.
 		// collection = EcoreUtil.copyAll(collection);
 		//
 		// for (Object object : collection) {
 		// if (object instanceof Identifiable)
 		// System.out.println("Updating collection: " + object);
 		// ReqIF10Util.ensureIdIsUnique(((EObject) owner).eResource(),
 		// (Identifiable) object);
 		// }
 		// }

 		for (Object obj : collection) {
 			if (obj instanceof SpecHierarchy) {
 				SpecHierarchy specHierarchy = (SpecHierarchy) obj;

 				boolean validDrop = ProrUtil.isValidDrop(specHierarchy, owner);
 				if (!validDrop) {
 					return UnexecutableCommand.INSTANCE;
 				}

 			}
 		}

 		Command cmd = ProrUtil.getPresentationHandleDragAndDropCommand(domain,
 				owner, location, operations, operation, collection,
 				getRootAdapterFactory());
 		if (cmd != null)
 			return cmd;

 		// This is a bugfix for Bug 375519: We have to override the
 		// prepareDropLinOn method of the DragAndDropCommand, since we do
 		// not add SpecRelations as child of the owner. Instead we use the
 		// specific feature for SpecRelations.
 		DragAndDropCommand dragAndDropCommand = new DragAndDropCommand(domain,
 				owner, location, operations, operation, collection) {

 			@Override
 			protected boolean prepareDropLinkOn() {
 				dropCommand = ProrUtil.createCreateSpecRelationsCommand(domain,
 						collection, owner);
 				boolean result = dropCommand.canExecute();
 				return result;
 			}

 		};

 		return dragAndDropCommand;
 	}

 	/**
 	 * Ensures that added items have a unique ID
 	 */
 	@Override
 	protected Command createAddCommand(EditingDomain domain, EObject owner,
 			EStructuralFeature feature, Collection<?> collection, int index) {

 		// Ensure that the ID is unique if it's a copy operation.
 		collection = ReqIF10Util
 				.ensureIdIsUnique(owner.eResource(), collection);
 		return super
 				.createAddCommand(domain, owner, feature, collection, index);
 	}

 	/**
 	 * We extended the command in order to append an additional command for
 	 * setting the lastChanged attribute of the {@link SpecHierarchy} whenever
 	 * it is moved (the order is changed).
 	 */
 	@Override
 	protected Command createMoveCommand(EditingDomain domain, EObject owner,
 			EStructuralFeature feature, Object value, int index) {

 		List<Command> commandList = new ArrayList<Command>();
 		commandList.add(super.createMoveCommand(domain, owner, feature, value,
 				index));

 		GregorianCalendar lastChange = ReqIF10Util.getReqIFLastChange();
 		if (value instanceof SpecHierarchy) {
 			SetCommand sc = new SetCommand(domain, (SpecHierarchy) value,
 					ReqIF10Package.eINSTANCE.getIdentifiable_LastChange(),
 					lastChange);
 			commandList.add(sc);
 		}

 		CompoundCommand cc = new CompoundCommand(commandList);

 		return cc;

 	}

 }
	/*******************************************************************************
	* Copyright (c) 2011, 2013 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 static org.eclipse.rmf.reqif10.ReqIF10Package.Literals.REQ_IF_CONTENT__SPEC_OBJECTS;
	import static org.eclipse.rmf.reqif10.ReqIF10Package.Literals.SPEC_HIERARCHY__CHILDREN;
	import static org.eclipse.rmf.reqif10.ReqIF10Package.Literals.SPEC_HIERARCHY__OBJECT;
	import static org.eclipse.rmf.reqif10.ReqIF10Package.Literals.SPEC_OBJECT__TYPE;

	import java.util.ArrayList;
	import java.util.Collection;
	import java.util.GregorianCalendar;
	import java.util.List;

	import org.eclipse.emf.common.command.Command;
	import org.eclipse.emf.common.command.CompoundCommand;
	import org.eclipse.emf.common.command.UnexecutableCommand;
	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.edit.command.AddCommand;
	import org.eclipse.emf.edit.command.DragAndDropCommand;
	import org.eclipse.emf.edit.command.SetCommand;
	import org.eclipse.emf.edit.domain.EditingDomain;
	import org.eclipse.emf.edit.provider.ComposeableAdapterFactory;
	import org.eclipse.emf.edit.provider.IItemPropertyDescriptor;
	import org.eclipse.emf.edit.provider.ItemPropertyDescriptor;
	import org.eclipse.emf.edit.provider.ItemPropertyDescriptorDecorator;
	import org.eclipse.emf.edit.provider.ItemProviderAdapter;
	import org.eclipse.emf.edit.provider.ViewerNotification;
	import org.eclipse.rmf.reqif10.ReqIF10Factory;
	import org.eclipse.rmf.reqif10.ReqIF10Package;
	import org.eclipse.rmf.reqif10.ReqIFContent;
	import org.eclipse.rmf.reqif10.SpecHierarchy;
	import org.eclipse.rmf.reqif10.SpecObject;
	import org.eclipse.rmf.reqif10.SpecObjectType;
	import org.eclipse.rmf.reqif10.SpecType;
	import org.eclipse.rmf.reqif10.common.util.ReqIF10Util;
	import org.eclipse.rmf.reqif10.pror.util.ConfigurationUtil;
	import org.eclipse.rmf.reqif10.pror.util.ProrUtil;

	/**
	* This is the item provider adapter for a
	* {@link org.eclipse.rmf.reqif10.SpecHierarchy} object. <!-- begin-user-doc -->
	* <!-- end-user-doc -->
	*
	* @generated
	*/
	public class SpecHierarchyItemProvider extends
	AccessControlledElementItemProvider {
	/**
	* This constructs an instance from a factory and a notifier. <!--
	* begin-user-doc --> <!-- end-user-doc -->
	*
	* @generated
	*/
	public SpecHierarchyItemProvider(AdapterFactory adapterFactory) {
	super(adapterFactory);
	}

	/**
	* This returns the property descriptors for the adapted class. <!--
	* begin-user-doc --> Adding the properties from the {@link SpecObject}
	* <p>
	*
	* NOTE: In order for this to work, the properties must not be cached. We
	* achieve this by setting itemPropertyDescriptors to null in the subclasses
	* in {@link #getPropertyDescriptors(Object)}
	* <p>
	*
	* <!-- end-user-doc -->
	*
	* @generated NOT
	*/
	@Override
	public List<IItemPropertyDescriptor> getPropertyDescriptors(
	Object specHierarchy) {
	itemPropertyDescriptors = null;
	super.getPropertyDescriptors(specHierarchy);

	// We need to separate the SpecHierarchy's properties from the
	// SpecObject's properties. Therefore, we rename the
	// Category.
	ArrayList<IItemPropertyDescriptor> newDescriptors = new ArrayList<IItemPropertyDescriptor>();
	for (IItemPropertyDescriptor descriptor : itemPropertyDescriptors) {
	newDescriptors.add(new ItemPropertyDescriptorDecorator(
	specHierarchy, descriptor) {
	public String getCategory(Object thisObject) {
	return getString("_UI_SpecHierarchyPropertyCategory");
	}
	});
	}
	itemPropertyDescriptors = newDescriptors;

	SpecObject specObject = ((SpecHierarchy) specHierarchy).getObject();
	if (specObject != null) {
	ItemProviderAdapter specObjectItemProvider = ProrUtil
	.getItemProvider(adapterFactory, specObject);
	itemPropertyDescriptors.addAll(specObjectItemProvider
	.getPropertyDescriptors(specObject));
	}
	addTableInternalPropertyDescriptor(specHierarchy);
	addObjectPropertyDescriptor(specHierarchy);
	addEditableAttsPropertyDescriptor(specHierarchy);
	return itemPropertyDescriptors;
	}

	/**
	* This adds a property descriptor for the Table Internal feature. <!--
	* begin-user-doc --> <!-- end-user-doc -->
	*
	* @generated
	*/
	protected void addTableInternalPropertyDescriptor(Object object) {
	itemPropertyDescriptors.add(createItemPropertyDescriptor(
	((ComposeableAdapterFactory) adapterFactory)
	.getRootAdapterFactory(),
	getResourceLocator(),
	getString("_UI_SpecHierarchy_tableInternal_feature"),
	getString("_UI_PropertyDescriptor_description",
	"_UI_SpecHierarchy_tableInternal_feature",
	"_UI_SpecHierarchy_type"),
	ReqIF10Package.Literals.SPEC_HIERARCHY__TABLE_INTERNAL, true,
	false, false, ItemPropertyDescriptor.BOOLEAN_VALUE_IMAGE,
	getString("_UI_SpecHierarchyPropertyCategory"), null));
	}

	/**
	* This adds a property descriptor for the Object feature. <!--
	* begin-user-doc --> <!-- end-user-doc -->
	*
	* @generated
	*/
	protected void addObjectPropertyDescriptor(Object object) {
	itemPropertyDescriptors.add(createItemPropertyDescriptor(
	((ComposeableAdapterFactory) adapterFactory)
	.getRootAdapterFactory(),
	getResourceLocator(),
	getString("_UI_SpecHierarchy_object_feature"),
	getString("_UI_PropertyDescriptor_description",
	"_UI_SpecHierarchy_object_feature",
	"_UI_SpecHierarchy_type"),
	ReqIF10Package.Literals.SPEC_HIERARCHY__OBJECT, true, false,
	true, null, getString("_UI_SpecHierarchyPropertyCategory"),
	null));
	}

	/**
	* This adds a property descriptor for the Editable Atts feature. <!--
	* begin-user-doc --> <!-- end-user-doc -->
	*
	* @generated
	*/
	protected void addEditableAttsPropertyDescriptor(Object object) {
	itemPropertyDescriptors.add(createItemPropertyDescriptor(
	((ComposeableAdapterFactory) adapterFactory)
	.getRootAdapterFactory(),
	getResourceLocator(),
	getString("_UI_SpecHierarchy_editableAtts_feature"),
	getString("_UI_PropertyDescriptor_description",
	"_UI_SpecHierarchy_editableAtts_feature",
	"_UI_SpecHierarchy_type"),
	ReqIF10Package.Literals.SPEC_HIERARCHY__EDITABLE_ATTS, true,
	false, true, null,
	getString("_UI_SpecHierarchyPropertyCategory"), null));
	}

	/**
	* 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_HIERARCHY__CHILDREN);
	}
	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) {
	if (((SpecHierarchy) object).getObject() == null) {
	return overlayImage(
	object,
	getResourceLocator().getImage(
	"full/obj16/SpecHierarchy.png"));
	}
	return overlayImage(object,
	getResourceLocator().getImage("full/obj16/SpecObject.png"));
	}

	/**
	* This returns the label text for the adapted class. <!-- begin-user-doc
	* --> <!-- end-user-doc -->
	*
	* @generated NOT
	*/
	@Override
	public String getText(Object object) {
	SpecObject specObject = ((SpecHierarchy) object).getObject();
	if (specObject != null) {
	return ConfigurationUtil.getSpecElementLabel(specObject,
	adapterFactory);
	}
	return getString("_UI_SpecHierarchy_type");
	}

	/**
	* 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 --> Also
	* fire a notification upon change of the Object <!-- end-user-doc -->
	*
	* @generated NOT
	*/
	@Override
	public void notifyChanged(Notification notification) {
	updateChildren(notification);

	switch (notification.getFeatureID(SpecHierarchy.class)) {
	case ReqIF10Package.SPEC_HIERARCHY__TABLE_INTERNAL:
	fireNotifyChanged(new ViewerNotification(notification,
	notification.getNotifier(), false, true));
	return;
	case ReqIF10Package.SPEC_HIERARCHY__CHILDREN:
	fireNotifyChanged(new ViewerNotification(notification,
	notification.getNotifier(), true, false));
	return;
	case ReqIF10Package.SPEC_HIERARCHY__OBJECT:
	fireNotifyChanged(new ViewerNotification(notification,
	notification.getNotifier(), true, true));
	return;
	}
	super.notifyChanged(notification);
	}

	/**
	* This adds {@link org.eclipse.emf.edit.command.CommandParameter}s
	* describing the children that can be created under this object. <!--
	* begin-user-doc --> Adding ChildDescriptors for SpecHierarchies with
	* attached specObjects. <!-- end-user-doc -->
	*
	* @generated NOT
	*/
	@Override
	protected void collectNewChildDescriptors(
	Collection<Object> newChildDescriptors, Object object) {
	super.collectNewChildDescriptors(newChildDescriptors, object);

	newChildDescriptors.add(createChildParameter(SPEC_HIERARCHY__CHILDREN,
	ReqIF10Factory.eINSTANCE.createSpecHierarchy()));

	// Allow creation of new untyped SpecObjects
	newChildDescriptors.add(createChildParameter(SPEC_HIERARCHY__CHILDREN,
	ReqIF10Factory.eINSTANCE.createSpecObject()));

	// Allow creation of typed SpecObjects
	ProrUtil.collectNewChildDescriptorsForTypeCreators(newChildDescriptors,
	object, SPEC_HIERARCHY__CHILDREN, SpecObjectType.class);

	}

	/**
	* {@inheritDoc}
	*/
	@Override
	public String getCreateChildToolTipText(Object owner, Object feature,
	Object child, Collection<?> selection) {
	if (child instanceof SpecHierarchy) {
	return "Adding SpecHierarchy";
	}
	return super
	.getCreateChildToolTipText(owner, feature, child, selection);
	}

	/**
	* <p>
	* In addition to the regular functionality (creating a SpecHierarchy child
	* object), this method allows a SpecObject or a SpecType as an argument:
	* </p>
	*
	* Note that this is almost the same as
	* {@link SpecificationItemProvider#createCreateChildCommand(EditingDomain, EObject, EStructuralFeature, Object, int, Collection)}
	* .
	*
	* @param value
	* instanceof {@link SpecType}: A new SpecObject with the given
	* SpecType is created, and a SpecHierarchy is added that is
	* associated with the newly created SpecObject.
	*
	* @param value
	* instanceof {@link SpecObject}: The SpecObject is added to a
	* new SpecHierarchy, which is then added.
	*/
	@Override
	protected Command createCreateChildCommand(EditingDomain domain,
	EObject owner, EStructuralFeature feature, Object value, int index,
	Collection<?> collection) {

	if (value instanceof SpecType) {
	ReqIFContent content = ReqIF10Util.getReqIF(owner).getCoreContent();
	SpecObject specObject = ReqIF10Factory.eINSTANCE.createSpecObject();
	SpecHierarchy specHierarchy = ReqIF10Factory.eINSTANCE
	.createSpecHierarchy();

	CompoundCommand cmd = ProrUtil.createAddTypedElementCommand(
	content, REQ_IF_CONTENT__SPEC_OBJECTS, specObject,
	SPEC_OBJECT__TYPE, (SpecType) value, -1, 3, domain,
	adapterFactory);
	cmd.append(AddCommand.create(domain, owner,
	SPEC_HIERARCHY__CHILDREN, specHierarchy, index));
	cmd.append(SetCommand.create(domain, specHierarchy,
	SPEC_HIERARCHY__OBJECT, specObject));
	return cmd;
	}
	if (value instanceof SpecObject) {
	Object icon = ProrUtil.getItemProvider(adapterFactory, value)
	.getImage(value);
	CompoundCommand cmd = ProrUtil.createCompoundCommandWithAddIcon(
	icon, 0);
	cmd.setLabel("Adding SpecObject");
	cmd.setDescription("Adding SpecObject");
	SpecHierarchy specHierarchy = ReqIF10Factory.eINSTANCE
	.createSpecHierarchy();
	cmd.append(AddCommand.create(domain, owner,
	SPEC_HIERARCHY__CHILDREN, specHierarchy, index));
	cmd.append(AddCommand.create(domain, ReqIF10Util.getReqIF(owner)
	.getCoreContent(), REQ_IF_CONTENT__SPEC_OBJECTS, value));
	cmd.append(SetCommand.create(domain, specHierarchy,
	SPEC_HIERARCHY__OBJECT, value));
	return cmd;
	}

	return super.createCreateChildCommand(domain, owner, feature, value,
	index, collection);
	}

	/**
	* Handles link-operations by creating SpecRelations.
	*/
	@Override
	protected Command createDragAndDropCommand(EditingDomain domain,
	Object owner, float location, int operations, int operation,
	Collection<?> collection) {
	//
	// // Ensure that the ID is unique if it's a copy operation.
	// if (owner instanceof EObject
	// && operation == DragAndDropFeedback.DROP_COPY) {
	// // We must create a copy, as the collection is not detached from the
	// model yet.
	// collection = EcoreUtil.copyAll(collection);
	//
	// for (Object object : collection) {
	// if (object instanceof Identifiable)
	// System.out.println("Updating collection: " + object);
	// ReqIF10Util.ensureIdIsUnique(((EObject) owner).eResource(),
	// (Identifiable) object);
	// }
	// }

	for (Object obj : collection) {
	if (obj instanceof SpecHierarchy) {
	SpecHierarchy specHierarchy = (SpecHierarchy) obj;

	boolean validDrop = ProrUtil.isValidDrop(specHierarchy, owner);
	if (!validDrop) {
	return UnexecutableCommand.INSTANCE;
	}

	}
	}

	Command cmd = ProrUtil.getPresentationHandleDragAndDropCommand(domain,
	owner, location, operations, operation, collection,
	getRootAdapterFactory());
	if (cmd != null)
	return cmd;

	// This is a bugfix for Bug 375519: We have to override the
	// prepareDropLinOn method of the DragAndDropCommand, since we do
	// not add SpecRelations as child of the owner. Instead we use the
	// specific feature for SpecRelations.
	DragAndDropCommand dragAndDropCommand = new DragAndDropCommand(domain,
	owner, location, operations, operation, collection) {

	@Override
	protected boolean prepareDropLinkOn() {
	dropCommand = ProrUtil.createCreateSpecRelationsCommand(domain,
	collection, owner);
	boolean result = dropCommand.canExecute();
	return result;
	}

	};

	return dragAndDropCommand;
	}

	/**
	* Ensures that added items have a unique ID
	*/
	@Override
	protected Command createAddCommand(EditingDomain domain, EObject owner,
	EStructuralFeature feature, Collection<?> collection, int index) {

	// Ensure that the ID is unique if it's a copy operation.
	collection = ReqIF10Util
	.ensureIdIsUnique(owner.eResource(), collection);
	return super
	.createAddCommand(domain, owner, feature, collection, index);
	}

	/**
	* We extended the command in order to append an additional command for
	* setting the lastChanged attribute of the {@link SpecHierarchy} whenever
	* it is moved (the order is changed).
	*/
	@Override
	protected Command createMoveCommand(EditingDomain domain, EObject owner,
	EStructuralFeature feature, Object value, int index) {

	List<Command> commandList = new ArrayList<Command>();
	commandList.add(super.createMoveCommand(domain, owner, feature, value,
	index));

	GregorianCalendar lastChange = ReqIF10Util.getReqIFLastChange();
	if (value instanceof SpecHierarchy) {
	SetCommand sc = new SetCommand(domain, (SpecHierarchy) value,
	ReqIF10Package.eINSTANCE.getIdentifiable_LastChange(),
	lastChange);
	commandList.add(sc);
	}

	CompoundCommand cc = new CompoundCommand(commandList);

	return cc;

	}

	}