tests/org.eclipse.emf.ecp.view.dynamictree.model/src/org/eclipse/emf/ecp/view/dynamictree/model/impl/DynamicContainmentTreeDMRConverter.java - emfclient/org.eclipse.emf.ecp.core - Git at Google

 /*******************************************************************************
  * Copyright (c) 2011-2018 EclipseSource Muenchen GmbH and others.
  *
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
  * which accompanies this distribution, and is available at
  * https://www.eclipse.org/legal/epl-2.0/
  *
  * SPDX-License-Identifier: EPL-2.0
  *
  * Contributors:
  * Lucas Koehler - initial API and implementation
  * Christian W. Damus - bug 533522
  ******************************************************************************/
 package org.eclipse.emf.ecp.view.dynamictree.model.impl;

 import org.eclipse.core.databinding.observable.IObserving;
 import org.eclipse.core.databinding.observable.value.IObservableValue;
 import org.eclipse.core.databinding.property.value.IValueProperty;
 import org.eclipse.emf.databinding.IEMFListProperty;
 import org.eclipse.emf.databinding.IEMFValueProperty;
 import org.eclipse.emf.databinding.internal.EMFValuePropertyDecorator;
 import org.eclipse.emf.ecore.EClass;
 import org.eclipse.emf.ecore.EObject;
 import org.eclipse.emf.ecore.EReference;
 import org.eclipse.emf.ecore.EStructuralFeature;
 import org.eclipse.emf.ecore.EStructuralFeature.Setting;
 import org.eclipse.emf.ecore.InternalEObject;
 import org.eclipse.emf.ecp.view.dynamictree.model.DynamicContainmentItem;
 import org.eclipse.emf.ecp.view.dynamictree.model.DynamicContainmentTreeDomainModelReference;
 import org.eclipse.emf.ecp.view.spi.model.VDomainModelReference;
 import org.eclipse.emf.edit.domain.EditingDomain;
 import org.eclipse.emfforms.spi.core.services.databinding.DatabindingFailedException;
 import org.eclipse.emfforms.spi.core.services.databinding.emf.DomainModelReferenceConverterEMF;
 import org.eclipse.emfforms.spi.core.services.databinding.emf.EMFFormsDatabindingEMF;
 import org.osgi.framework.BundleContext;
 import org.osgi.framework.ServiceReference;

 /**
  * A {@link DomainModelReferenceConverterEMF} that converts a {@link DynamicContainmentTreeDomainModelReference} to an
  * {@link IEMFListProperty IEMFListProperty} or an {@link IEMFValueProperty}.
  *
  * @author Lucas Koehler
  *
  */
 @SuppressWarnings("restriction")
 public class DynamicContainmentTreeDMRConverter implements DomainModelReferenceConverterEMF {
 	private EMFFormsDatabindingEMF emfFormsDatabinding;
 	private ServiceReference<EMFFormsDatabindingEMF> databindingServiceReference;
 	private BundleContext bundleContext;

 	/**
 	 * Sets the {@link EMFFormsDatabindingEMF}.
 	 *
 	 * @param emfFormsDatabinding the emfFormsDatabinding to set
 	 */
 	void setEMFFormsDatabinding(EMFFormsDatabindingEMF emfFormsDatabinding) {
 		this.emfFormsDatabinding = emfFormsDatabinding;
 	}

 	/**
 	 * Unsets the {@link EMFFormsDatabindingEMF}.
 	 */
 	void unsetEMFFormsDatabinding() {
 		emfFormsDatabinding = null;
 	}

 	/**
 	 * This method is called by the OSGI framework when this {@link DomainModelReferenceConverterEMF} is activated. It
 	 * retrieves the {@link EMFFormsDatabindingEMF EMF Forms databinding service}.
 	 *
 	 * @param bundleContext The {@link BundleContext} of this classes bundle.
 	 */
 	protected final void activate(BundleContext bundleContext) {
 		this.bundleContext = bundleContext;
 	}

 	/**
 	 * This method is called by the OSGI framework when this {@link DomainModelReferenceConverterEMF} is deactivated.
 	 * It frees the {@link EMFFormsDatabindingEMF EMF Forms databinding service}.
 	 *
 	 * @param bundleContext The {@link BundleContext} of this classes bundle.
 	 */
 	protected final void deactivate(BundleContext bundleContext) {
 		unsetEMFFormsDatabinding();
 		if (databindingServiceReference != null) {
 			bundleContext.ungetService(databindingServiceReference);
 			databindingServiceReference = null;
 		}
 	}

 	@Override
 	public double isApplicable(VDomainModelReference domainModelReference) {
 		if (domainModelReference == null) {
 			throw new IllegalArgumentException("The given VDomainModelReference must not be null."); //$NON-NLS-1$
 		}
 		if (domainModelReference instanceof DynamicContainmentTreeDomainModelReference) {
 			return 10d;
 		}
 		return NOT_APPLICABLE;
 	}

 	private EMFFormsDatabindingEMF getEMFFormsDatabinding() {
 		if (emfFormsDatabinding == null) {
 			databindingServiceReference = bundleContext.getServiceReference(EMFFormsDatabindingEMF.class);
 			setEMFFormsDatabinding(bundleContext.getService(databindingServiceReference));
 		}
 		return emfFormsDatabinding;
 	}

 	@Override
 	public IEMFValueProperty convertToValueProperty(VDomainModelReference domainModelReference, EObject object)
 		throws DatabindingFailedException {
 		final DynamicContainmentTreeDomainModelReference dynamicContainmentTreeReference = getAndCheckDynamicContainmentTreeDMR(
 			domainModelReference);

 		final int index = getIndex(dynamicContainmentTreeReference);

 		final EMFValuePropertyDecorator indexedProperty = getIndexedRootProperty(
 			dynamicContainmentTreeReference, index, object);

 		final IEMFValueProperty valuePropertyFromBase = getEMFFormsDatabinding()
 			.getValueProperty(dynamicContainmentTreeReference.getPathFromBase(), object);

 		return indexedProperty.value(valuePropertyFromBase);
 	}

 	@Override
 	public IEMFValueProperty convertToValueProperty(VDomainModelReference domainModelReference, EClass rootEClass,
 		EditingDomain editingDomain) throws DatabindingFailedException {
 		final DynamicContainmentTreeDomainModelReference dynamicContainmentTreeReference = getAndCheckDynamicContainmentTreeDMR(
 			domainModelReference);

 		final int index = getIndex(dynamicContainmentTreeReference);

 		final EMFValuePropertyDecorator indexedProperty = getIndexedRootProperty(
 			dynamicContainmentTreeReference, index, rootEClass, editingDomain);

 		final IEMFValueProperty valuePropertyFromBase = getEMFFormsDatabinding()
 			.getValueProperty(dynamicContainmentTreeReference.getPathFromBase(), rootEClass, editingDomain);

 		return indexedProperty.value(valuePropertyFromBase);
 	}

 	@Override
 	public IEMFListProperty convertToListProperty(VDomainModelReference domainModelReference, EObject object)
 		throws DatabindingFailedException {
 		final DynamicContainmentTreeDomainModelReference dynamicContainmentTreeReference = getAndCheckDynamicContainmentTreeDMR(
 			domainModelReference);

 		final int index = getIndex(dynamicContainmentTreeReference);

 		final EMFValuePropertyDecorator indexedProperty = getIndexedRootProperty(
 			dynamicContainmentTreeReference, index, object);
 		final IEMFListProperty listPropertyFromBase = getEMFFormsDatabinding()
 			.getListProperty(dynamicContainmentTreeReference.getPathFromBase(), object);

 		return indexedProperty.list(listPropertyFromBase);
 	}

 	private EMFValuePropertyDecorator getIndexedRootProperty(
 		final DynamicContainmentTreeDomainModelReference dynamicContainmentTreeReference, final int index,
 		EObject object)
 		throws DatabindingFailedException, IllegalListTypeException {
 		final IValueProperty valuePropertyFromRoot = getEMFFormsDatabinding()
 			.getValueProperty(dynamicContainmentTreeReference.getPathFromRoot(), object);
 		final EStructuralFeature structuralFeature = (EStructuralFeature) valuePropertyFromRoot.getValueType();
 		checkListType(structuralFeature);

 		final EMFIndexedValuePropertyDelegator indexedProperty = new EMFIndexedValuePropertyDelegator(
 			valuePropertyFromRoot, index);
 		return new EMFValuePropertyDecorator(indexedProperty, structuralFeature);
 	}

 	private EMFValuePropertyDecorator getIndexedRootProperty(
 		final DynamicContainmentTreeDomainModelReference dynamicContainmentTreeReference, final int index,
 		EClass rootEClass, EditingDomain editingDomain) throws DatabindingFailedException, IllegalListTypeException {
 		final IValueProperty valuePropertyFromRoot = getEMFFormsDatabinding()
 			.getValueProperty(dynamicContainmentTreeReference.getPathFromRoot(), rootEClass, editingDomain);
 		final EStructuralFeature structuralFeature = (EStructuralFeature) valuePropertyFromRoot.getValueType();
 		checkListType(structuralFeature);

 		final EMFIndexedValuePropertyDelegator indexedProperty = new EMFIndexedValuePropertyDelegator(
 			valuePropertyFromRoot, index);
 		return new EMFValuePropertyDecorator(indexedProperty, structuralFeature);
 	}

 	private DynamicContainmentTreeDomainModelReference getAndCheckDynamicContainmentTreeDMR(
 		VDomainModelReference domainModelReference) throws DatabindingFailedException {
 		if (domainModelReference == null) {
 			throw new IllegalArgumentException("The given VDomainModelReference must not be null."); //$NON-NLS-1$
 		}
 		if (!DynamicContainmentTreeDomainModelReference.class.isInstance(domainModelReference)) {
 			throw new IllegalArgumentException(
 				"DomainModelReference must be an instance of DynamicContainmentTreeDomainModelReference."); //$NON-NLS-1$
 		}

 		final DynamicContainmentTreeDomainModelReference dynamicContainmentTreeReference = DynamicContainmentTreeDomainModelReference.class
 			.cast(domainModelReference);
 		if (dynamicContainmentTreeReference.getPathFromRoot() == null) {
 			throw new DatabindingFailedException(
 				"The field pathFromRoot of the given DynamicContainmentTreeDomainModelReference must not be null."); //$NON-NLS-1$
 		}
 		if (dynamicContainmentTreeReference.getPathFromBase() == null) {
 			throw new DatabindingFailedException(
 				"The field pathFromBase of the given DynamicContainmentTreeDomainModelReference must not be null."); //$NON-NLS-1$
 		}
 		return dynamicContainmentTreeReference;
 	}

 	private int getIndex(DynamicContainmentTreeDomainModelReference reference) throws DatabindingFailedException {
 		EObject parent = reference.eContainer();
 		while (!DynamicContainmentItem.class.isInstance(parent) && parent != null) {
 			parent = parent.eContainer();
 		}
 		if (parent == null) {
 			throw new DatabindingFailedException(
 				"The base item index of the DynamicContainmentTreeDomainModelReference could not be resolved because its container is null."); //$NON-NLS-1$
 		}
 		final DynamicContainmentItem packingItem = (DynamicContainmentItem) parent;
 		if (packingItem.getBaseItemIndex() == null) {
 			throw new DatabindingFailedException(
 				"The base item index of the DynamicContainmentTreeDomainModelReference must not be null."); //$NON-NLS-1$
 		}
 		return packingItem.getBaseItemIndex();
 	}

 	/**
 	 * Checks whether the given structural feature references a proper list to generate a value or list property.
 	 *
 	 * @param structuralFeature The feature to check
 	 * @throws IllegalListTypeException if the structural feature doesn't reference a proper list.
 	 */
 	private void checkListType(EStructuralFeature structuralFeature) throws IllegalListTypeException {
 		if (!structuralFeature.isMany()) {
 			throw new IllegalListTypeException(
 				"The DynamicContainmentTreeDomainModelReference's base feature must reference a list."); //$NON-NLS-1$
 		}
 		if (!EReference.class.isInstance(structuralFeature)) {
 			throw new IllegalListTypeException(
 				"The DynamicContainmentTreeDomainModelReference's base feature must reference a list of EObjects."); //$NON-NLS-1$
 		}
 	}

 	@Override
 	public Setting getSetting(VDomainModelReference domainModelReference, EObject object)
 		throws DatabindingFailedException {
 		final IEMFValueProperty valueProperty = convertToValueProperty(domainModelReference, object);
 		final IObservableValue observableValue = valueProperty.observe(object);
 		final EObject eObject = (EObject) IObserving.class.cast(observableValue).getObserved();
 		if (eObject == null) {
 			throw new DatabindingFailedException("The observed elements is empty. Probably the list is empty!");
 		}
 		final EStructuralFeature eStructuralFeature = valueProperty.getStructuralFeature();
 		return InternalEObject.class.cast(eObject).eSetting(eStructuralFeature);
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2011-2018 EclipseSource Muenchen GmbH and others.
	*
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License 2.0
	* which accompanies this distribution, and is available at
	* https://www.eclipse.org/legal/epl-2.0/
	*
	* SPDX-License-Identifier: EPL-2.0
	*
	* Contributors:
	* Lucas Koehler - initial API and implementation
	* Christian W. Damus - bug 533522
	******************************************************************************/
	package org.eclipse.emf.ecp.view.dynamictree.model.impl;

	import org.eclipse.core.databinding.observable.IObserving;
	import org.eclipse.core.databinding.observable.value.IObservableValue;
	import org.eclipse.core.databinding.property.value.IValueProperty;
	import org.eclipse.emf.databinding.IEMFListProperty;
	import org.eclipse.emf.databinding.IEMFValueProperty;
	import org.eclipse.emf.databinding.internal.EMFValuePropertyDecorator;
	import org.eclipse.emf.ecore.EClass;
	import org.eclipse.emf.ecore.EObject;
	import org.eclipse.emf.ecore.EReference;
	import org.eclipse.emf.ecore.EStructuralFeature;
	import org.eclipse.emf.ecore.EStructuralFeature.Setting;
	import org.eclipse.emf.ecore.InternalEObject;
	import org.eclipse.emf.ecp.view.dynamictree.model.DynamicContainmentItem;
	import org.eclipse.emf.ecp.view.dynamictree.model.DynamicContainmentTreeDomainModelReference;
	import org.eclipse.emf.ecp.view.spi.model.VDomainModelReference;
	import org.eclipse.emf.edit.domain.EditingDomain;
	import org.eclipse.emfforms.spi.core.services.databinding.DatabindingFailedException;
	import org.eclipse.emfforms.spi.core.services.databinding.emf.DomainModelReferenceConverterEMF;
	import org.eclipse.emfforms.spi.core.services.databinding.emf.EMFFormsDatabindingEMF;
	import org.osgi.framework.BundleContext;
	import org.osgi.framework.ServiceReference;

	/**
	* A {@link DomainModelReferenceConverterEMF} that converts a {@link DynamicContainmentTreeDomainModelReference} to an
	* {@link IEMFListProperty IEMFListProperty} or an {@link IEMFValueProperty}.
	*
	* @author Lucas Koehler
	*
	*/
	@SuppressWarnings("restriction")
	public class DynamicContainmentTreeDMRConverter implements DomainModelReferenceConverterEMF {
	private EMFFormsDatabindingEMF emfFormsDatabinding;
	private ServiceReference<EMFFormsDatabindingEMF> databindingServiceReference;
	private BundleContext bundleContext;

	/**
	* Sets the {@link EMFFormsDatabindingEMF}.
	*
	* @param emfFormsDatabinding the emfFormsDatabinding to set
	*/
	void setEMFFormsDatabinding(EMFFormsDatabindingEMF emfFormsDatabinding) {
	this.emfFormsDatabinding = emfFormsDatabinding;
	}

	/**
	* Unsets the {@link EMFFormsDatabindingEMF}.
	*/
	void unsetEMFFormsDatabinding() {
	emfFormsDatabinding = null;
	}

	/**
	* This method is called by the OSGI framework when this {@link DomainModelReferenceConverterEMF} is activated. It
	* retrieves the {@link EMFFormsDatabindingEMF EMF Forms databinding service}.
	*
	* @param bundleContext The {@link BundleContext} of this classes bundle.
	*/
	protected final void activate(BundleContext bundleContext) {
	this.bundleContext = bundleContext;
	}

	/**
	* This method is called by the OSGI framework when this {@link DomainModelReferenceConverterEMF} is deactivated.
	* It frees the {@link EMFFormsDatabindingEMF EMF Forms databinding service}.
	*
	* @param bundleContext The {@link BundleContext} of this classes bundle.
	*/
	protected final void deactivate(BundleContext bundleContext) {
	unsetEMFFormsDatabinding();
	if (databindingServiceReference != null) {
	bundleContext.ungetService(databindingServiceReference);
	databindingServiceReference = null;
	}
	}

	@Override
	public double isApplicable(VDomainModelReference domainModelReference) {
	if (domainModelReference == null) {
	throw new IllegalArgumentException("The given VDomainModelReference must not be null."); //$NON-NLS-1$
	}
	if (domainModelReference instanceof DynamicContainmentTreeDomainModelReference) {
	return 10d;
	}
	return NOT_APPLICABLE;
	}

	private EMFFormsDatabindingEMF getEMFFormsDatabinding() {
	if (emfFormsDatabinding == null) {
	databindingServiceReference = bundleContext.getServiceReference(EMFFormsDatabindingEMF.class);
	setEMFFormsDatabinding(bundleContext.getService(databindingServiceReference));
	}
	return emfFormsDatabinding;
	}

	@Override
	public IEMFValueProperty convertToValueProperty(VDomainModelReference domainModelReference, EObject object)
	throws DatabindingFailedException {
	final DynamicContainmentTreeDomainModelReference dynamicContainmentTreeReference = getAndCheckDynamicContainmentTreeDMR(
	domainModelReference);

	final int index = getIndex(dynamicContainmentTreeReference);

	final EMFValuePropertyDecorator indexedProperty = getIndexedRootProperty(
	dynamicContainmentTreeReference, index, object);

	final IEMFValueProperty valuePropertyFromBase = getEMFFormsDatabinding()
	.getValueProperty(dynamicContainmentTreeReference.getPathFromBase(), object);

	return indexedProperty.value(valuePropertyFromBase);
	}

	@Override
	public IEMFValueProperty convertToValueProperty(VDomainModelReference domainModelReference, EClass rootEClass,
	EditingDomain editingDomain) throws DatabindingFailedException {
	final DynamicContainmentTreeDomainModelReference dynamicContainmentTreeReference = getAndCheckDynamicContainmentTreeDMR(
	domainModelReference);

	final int index = getIndex(dynamicContainmentTreeReference);

	final EMFValuePropertyDecorator indexedProperty = getIndexedRootProperty(
	dynamicContainmentTreeReference, index, rootEClass, editingDomain);

	final IEMFValueProperty valuePropertyFromBase = getEMFFormsDatabinding()
	.getValueProperty(dynamicContainmentTreeReference.getPathFromBase(), rootEClass, editingDomain);

	return indexedProperty.value(valuePropertyFromBase);
	}

	@Override
	public IEMFListProperty convertToListProperty(VDomainModelReference domainModelReference, EObject object)
	throws DatabindingFailedException {
	final DynamicContainmentTreeDomainModelReference dynamicContainmentTreeReference = getAndCheckDynamicContainmentTreeDMR(
	domainModelReference);

	final int index = getIndex(dynamicContainmentTreeReference);

	final EMFValuePropertyDecorator indexedProperty = getIndexedRootProperty(
	dynamicContainmentTreeReference, index, object);
	final IEMFListProperty listPropertyFromBase = getEMFFormsDatabinding()
	.getListProperty(dynamicContainmentTreeReference.getPathFromBase(), object);

	return indexedProperty.list(listPropertyFromBase);
	}

	private EMFValuePropertyDecorator getIndexedRootProperty(
	final DynamicContainmentTreeDomainModelReference dynamicContainmentTreeReference, final int index,
	EObject object)
	throws DatabindingFailedException, IllegalListTypeException {
	final IValueProperty valuePropertyFromRoot = getEMFFormsDatabinding()
	.getValueProperty(dynamicContainmentTreeReference.getPathFromRoot(), object);
	final EStructuralFeature structuralFeature = (EStructuralFeature) valuePropertyFromRoot.getValueType();
	checkListType(structuralFeature);

	final EMFIndexedValuePropertyDelegator indexedProperty = new EMFIndexedValuePropertyDelegator(
	valuePropertyFromRoot, index);
	return new EMFValuePropertyDecorator(indexedProperty, structuralFeature);
	}

	private EMFValuePropertyDecorator getIndexedRootProperty(
	final DynamicContainmentTreeDomainModelReference dynamicContainmentTreeReference, final int index,
	EClass rootEClass, EditingDomain editingDomain) throws DatabindingFailedException, IllegalListTypeException {
	final IValueProperty valuePropertyFromRoot = getEMFFormsDatabinding()
	.getValueProperty(dynamicContainmentTreeReference.getPathFromRoot(), rootEClass, editingDomain);
	final EStructuralFeature structuralFeature = (EStructuralFeature) valuePropertyFromRoot.getValueType();
	checkListType(structuralFeature);

	final EMFIndexedValuePropertyDelegator indexedProperty = new EMFIndexedValuePropertyDelegator(
	valuePropertyFromRoot, index);
	return new EMFValuePropertyDecorator(indexedProperty, structuralFeature);
	}

	private DynamicContainmentTreeDomainModelReference getAndCheckDynamicContainmentTreeDMR(
	VDomainModelReference domainModelReference) throws DatabindingFailedException {
	if (domainModelReference == null) {
	throw new IllegalArgumentException("The given VDomainModelReference must not be null."); //$NON-NLS-1$
	}
	if (!DynamicContainmentTreeDomainModelReference.class.isInstance(domainModelReference)) {
	throw new IllegalArgumentException(
	"DomainModelReference must be an instance of DynamicContainmentTreeDomainModelReference."); //$NON-NLS-1$
	}

	final DynamicContainmentTreeDomainModelReference dynamicContainmentTreeReference = DynamicContainmentTreeDomainModelReference.class
	.cast(domainModelReference);
	if (dynamicContainmentTreeReference.getPathFromRoot() == null) {
	throw new DatabindingFailedException(
	"The field pathFromRoot of the given DynamicContainmentTreeDomainModelReference must not be null."); //$NON-NLS-1$
	}
	if (dynamicContainmentTreeReference.getPathFromBase() == null) {
	throw new DatabindingFailedException(
	"The field pathFromBase of the given DynamicContainmentTreeDomainModelReference must not be null."); //$NON-NLS-1$
	}
	return dynamicContainmentTreeReference;
	}

	private int getIndex(DynamicContainmentTreeDomainModelReference reference) throws DatabindingFailedException {
	EObject parent = reference.eContainer();
	while (!DynamicContainmentItem.class.isInstance(parent) && parent != null) {
	parent = parent.eContainer();
	}
	if (parent == null) {
	throw new DatabindingFailedException(
	"The base item index of the DynamicContainmentTreeDomainModelReference could not be resolved because its container is null."); //$NON-NLS-1$
	}
	final DynamicContainmentItem packingItem = (DynamicContainmentItem) parent;
	if (packingItem.getBaseItemIndex() == null) {
	throw new DatabindingFailedException(
	"The base item index of the DynamicContainmentTreeDomainModelReference must not be null."); //$NON-NLS-1$
	}
	return packingItem.getBaseItemIndex();
	}

	/**
	* Checks whether the given structural feature references a proper list to generate a value or list property.
	*
	* @param structuralFeature The feature to check
	* @throws IllegalListTypeException if the structural feature doesn't reference a proper list.
	*/
	private void checkListType(EStructuralFeature structuralFeature) throws IllegalListTypeException {
	if (!structuralFeature.isMany()) {
	throw new IllegalListTypeException(
	"The DynamicContainmentTreeDomainModelReference's base feature must reference a list."); //$NON-NLS-1$
	}
	if (!EReference.class.isInstance(structuralFeature)) {
	throw new IllegalListTypeException(
	"The DynamicContainmentTreeDomainModelReference's base feature must reference a list of EObjects."); //$NON-NLS-1$
	}
	}

	@Override
	public Setting getSetting(VDomainModelReference domainModelReference, EObject object)
	throws DatabindingFailedException {
	final IEMFValueProperty valueProperty = convertToValueProperty(domainModelReference, object);
	final IObservableValue observableValue = valueProperty.observe(object);
	final EObject eObject = (EObject) IObserving.class.cast(observableValue).getObserved();
	if (eObject == null) {
	throw new DatabindingFailedException("The observed elements is empty. Probably the list is empty!");
	}
	final EStructuralFeature eStructuralFeature = valueProperty.getStructuralFeature();
	return InternalEObject.class.cast(eObject).eSetting(eStructuralFeature);
	}
	}