bundles/org.eclipse.emfforms.core.services.databinding.mapping/src/org/eclipse/emfforms/internal/core/services/databinding/mapping/MappingDomainModelReferenceConverter.java - emfclient/org.eclipse.emf.ecp.core - Git at Google

 /*******************************************************************************
  * Copyright (c) 2011-2016 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 v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * Lucas Koehler - initial API and implementation
  ******************************************************************************/
 package org.eclipse.emfforms.internal.core.services.databinding.mapping;

 import java.util.List;

 import org.eclipse.core.databinding.observable.IObserving;
 import org.eclipse.core.databinding.observable.value.IObservableValue;
 import org.eclipse.emf.databinding.IEMFListProperty;
 import org.eclipse.emf.databinding.IEMFValueProperty;
 import org.eclipse.emf.databinding.edit.EMFEditProperties;
 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.spi.mappingdmr.model.VMappingDomainModelReference;
 import org.eclipse.emf.ecp.view.spi.model.VDomainModelReference;
 import org.eclipse.emf.edit.domain.AdapterFactoryEditingDomain;
 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;

 /**
  * Implementation of {@link DomainModelReferenceConverterEMF} that converts {@link VMappingDomainModelReference
  * VMappingDomainModelReferences}.
  *
  * @author Lucas Koehler
  *
  */
 @SuppressWarnings("restriction")
 public class MappingDomainModelReferenceConverter implements DomainModelReferenceConverterEMF {
 	private EMFFormsDatabindingEMF emfFormsDatabinding;
 	private ServiceReference<EMFFormsDatabindingEMF> databindingServiceReference;

 	/**
 	 * 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) {
 		databindingServiceReference = bundleContext.getServiceReference(EMFFormsDatabindingEMF.class);
 		setEMFFormsDatabinding(bundleContext.getService(databindingServiceReference));

 	}

 	/**
 	 * 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();
 		bundleContext.ungetService(databindingServiceReference);
 	}

 	/**
 	 * {@inheritDoc}
 	 *
 	 * @see org.eclipse.emfforms.spi.core.services.databinding.DomainModelReferenceConverter#isApplicable(org.eclipse.emf.ecp.view.spi.model.VDomainModelReference)
 	 */
 	@Override
 	public double isApplicable(VDomainModelReference domainModelReference) {
 		if (domainModelReference == null) {
 			throw new IllegalArgumentException("The given VDomainModelReference must not be null."); //$NON-NLS-1$
 		}
 		if (VMappingDomainModelReference.class.isInstance(domainModelReference)) {
 			return 10d;
 		}
 		return NOT_APPLICABLE;
 	}

 	/**
 	 * {@inheritDoc}
 	 *
 	 * @see org.eclipse.emfforms.spi.core.services.databinding.DomainModelReferenceConverter#convertToValueProperty(org.eclipse.emf.ecp.view.spi.model.VDomainModelReference,EObject)
 	 */
 	@Override
 	public IEMFValueProperty convertToValueProperty(VDomainModelReference domainModelReference, EObject object)
 		throws DatabindingFailedException {
 		if (domainModelReference == null) {
 			throw new IllegalArgumentException("The given VDomainModelReference must not be null."); //$NON-NLS-1$
 		}
 		if (!VMappingDomainModelReference.class.isInstance(domainModelReference)) {
 			throw new IllegalArgumentException(
 				"DomainModelReference must be an instance of VMappingDomainModelReference."); //$NON-NLS-1$
 		}

 		final VMappingDomainModelReference mappingReference = VMappingDomainModelReference.class
 			.cast(domainModelReference);
 		if (mappingReference.getDomainModelEFeature() == null) {
 			throw new DatabindingFailedException(
 				"The field domainModelEFeature of the given VMappingDomainModelReference must not be null."); //$NON-NLS-1$
 		}

 		checkMapType(mappingReference.getDomainModelEFeature());

 		final List<EReference> referencePath = mappingReference.getDomainModelEReferencePath();
 		final IEMFValueProperty mappingValueProperty = new EMFValuePropertyDecorator(
 			new EMFMappingValueProperty(getEditingDomain(object),
 				mappingReference.getMappedClass(),
 				mappingReference.getDomainModelEFeature()),
 			mappingReference.getDomainModelEFeature());

 		IEMFValueProperty valueProperty;
 		if (referencePath.isEmpty()) {
 			valueProperty = mappingValueProperty;
 		} else {
 			IEMFValueProperty emfValueProperty = EMFEditProperties
 				.value(getEditingDomain(object), referencePath.get(0));
 			for (int i = 1; i < referencePath.size(); i++) {
 				emfValueProperty = emfValueProperty.value(referencePath.get(i));
 			}

 			valueProperty = emfValueProperty.value(mappingValueProperty);
 		}

 		return valueProperty.value(emfFormsDatabinding.getValueProperty(mappingReference.getDomainModelReference(),
 			object));
 	}

 	/**
 	 * {@inheritDoc}
 	 *
 	 * @see org.eclipse.emfforms.spi.core.services.databinding.DomainModelReferenceConverter#convertToListProperty(org.eclipse.emf.ecp.view.spi.model.VDomainModelReference,EObject)
 	 */
 	@Override
 	public IEMFListProperty convertToListProperty(VDomainModelReference domainModelReference, EObject object)
 		throws DatabindingFailedException {
 		if (domainModelReference == null) {
 			throw new IllegalArgumentException("The given VDomainModelReference must not be null."); //$NON-NLS-1$
 		}
 		if (!VMappingDomainModelReference.class.isInstance(domainModelReference)) {
 			throw new IllegalArgumentException(
 				"DomainModelReference must be an instance of VMappingDomainModelReference."); //$NON-NLS-1$
 		}

 		final VMappingDomainModelReference mappingReference = VMappingDomainModelReference.class
 			.cast(domainModelReference);
 		if (mappingReference.getDomainModelEFeature() == null) {
 			throw new DatabindingFailedException(
 				"The field domainModelEFeature of the given VMappingDomainModelReference must not be null."); //$NON-NLS-1$
 		}

 		checkMapType(mappingReference.getDomainModelEFeature());

 		final List<EReference> referencePath = mappingReference.getDomainModelEReferencePath();

 		final IEMFValueProperty mappingValueProperty = new EMFValuePropertyDecorator(
 			new EMFMappingValueProperty(getEditingDomain(object),
 				mappingReference.getMappedClass(),
 				mappingReference.getDomainModelEFeature()),
 			mappingReference.getDomainModelEFeature());

 		IEMFValueProperty valueProperty;
 		if (referencePath.isEmpty()) {
 			valueProperty = mappingValueProperty;
 		} else {
 			IEMFValueProperty emfValueProperty = EMFEditProperties
 				.value(getEditingDomain(object), referencePath.get(0));
 			for (int i = 1; i < referencePath.size(); i++) {
 				emfValueProperty = emfValueProperty.value(referencePath.get(i));
 			}

 			valueProperty = emfValueProperty.value(mappingValueProperty);
 		}

 		return valueProperty.list(emfFormsDatabinding.getListProperty(mappingReference.getDomainModelReference(),
 			object));
 	}

 	/**
 	 * Checks whether the given structural feature references a proper map to generate a value or list property.
 	 *
 	 * @param structuralFeature The feature to check
 	 * @throws IllegalMapTypeException if the structural feature doesn't reference a proper map.
 	 */
 	private void checkMapType(EStructuralFeature structuralFeature) throws IllegalMapTypeException {
 		checkStructuralFeature(structuralFeature);

 		final EClass eClass = (EClass) structuralFeature.getEType();
 		final EStructuralFeature keyFeature = eClass.getEStructuralFeature("key"); //$NON-NLS-1$
 		final EStructuralFeature valueFeature = eClass.getEStructuralFeature("value"); //$NON-NLS-1$
 		if (keyFeature == null || valueFeature == null) {
 			throw new IllegalMapTypeException(
 				"The VMappingDomainModelReference's domainModelEFeature must reference a map."); //$NON-NLS-1$
 		}
 		if (!EReference.class.isInstance(valueFeature)) {
 			throw new IllegalMapTypeException(
 				"The values of the map referenced by the VMappingDomainModelReference's domainModelEFeature must be referenced EObjects."); //$NON-NLS-1$
 		}
 		if (!EReference.class.isInstance(keyFeature)) {
 			throw new IllegalMapTypeException(
 				"The keys of the map referenced by the VMappingDomainModelReference's domainModelEFeature must be referenced EClasses."); //$NON-NLS-1$
 		}
 		if (!EClass.class.isAssignableFrom(((EReference) keyFeature).getEReferenceType().getInstanceClass())) {
 			throw new IllegalMapTypeException(
 				"The keys of the map referenced by the VMappingDomainModelReference's domainModelEFeature must be referenced EClasses."); //$NON-NLS-1$
 		}
 	}

 	/**
 	 * Checks basic required properties of the given {@link EStructuralFeature}.
 	 *
 	 * @param structuralFeature The {@link EStructuralFeature} to check
 	 * @throws IllegalMapTypeException if something's wrong with the feature
 	 */
 	private void checkStructuralFeature(EStructuralFeature structuralFeature) throws IllegalMapTypeException {
 		if (structuralFeature.getEType() == null) {
 			throw new IllegalMapTypeException(
 				"The EType of the VMappingDomainModelReference's domainModelEFeature was null."); //$NON-NLS-1$
 		}
 		if (structuralFeature.getEType().getInstanceClassName() == null) {
 			throw new IllegalMapTypeException(
 				"The InstanceClassName of the VMappingDomainModelReference's domainModelEFeature's EType was null."); //$NON-NLS-1$
 		}
 		if (!structuralFeature.getEType().getInstanceClassName().equals("java.util.Map$Entry")) { //$NON-NLS-1$
 			throw new IllegalMapTypeException(
 				"The VMappingDomainModelReference's domainModelEFeature must reference a map."); //$NON-NLS-1$
 		}
 		if (structuralFeature.getLowerBound() != 0 || structuralFeature.getUpperBound() != -1) {
 			throw new IllegalMapTypeException(
 				"The VMappingDomainModelReference's domainModelEFeature must reference a map."); //$NON-NLS-1$
 		}
 	}

 	private EditingDomain getEditingDomain(EObject object) throws DatabindingFailedException {
 		return AdapterFactoryEditingDomain.getEditingDomainFor(object);
 	}

 	/**
 	 * {@inheritDoc}
 	 *
 	 * @see org.eclipse.emfforms.spi.core.services.databinding.emf.DomainModelReferenceConverterEMF#getSetting(org.eclipse.emf.ecp.view.spi.model.VDomainModelReference,
 	 *      org.eclipse.emf.ecore.EObject)
 	 */
 	@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();
 		final EStructuralFeature eStructuralFeature = valueProperty.getStructuralFeature();
 		if (eStructuralFeature.getEType() == null) {
 			throw new DatabindingFailedException(
 				String.format("The eType of the feature %1$s is null.", eStructuralFeature.getName())); //$NON-NLS-1$
 		}
 		return InternalEObject.class.cast(eObject).eSetting(eStructuralFeature);
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2011-2016 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 v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*
	* Contributors:
	* Lucas Koehler - initial API and implementation
	******************************************************************************/
	package org.eclipse.emfforms.internal.core.services.databinding.mapping;

	import java.util.List;

	import org.eclipse.core.databinding.observable.IObserving;
	import org.eclipse.core.databinding.observable.value.IObservableValue;
	import org.eclipse.emf.databinding.IEMFListProperty;
	import org.eclipse.emf.databinding.IEMFValueProperty;
	import org.eclipse.emf.databinding.edit.EMFEditProperties;
	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.spi.mappingdmr.model.VMappingDomainModelReference;
	import org.eclipse.emf.ecp.view.spi.model.VDomainModelReference;
	import org.eclipse.emf.edit.domain.AdapterFactoryEditingDomain;
	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;

	/**
	* Implementation of {@link DomainModelReferenceConverterEMF} that converts {@link VMappingDomainModelReference
	* VMappingDomainModelReferences}.
	*
	* @author Lucas Koehler
	*
	*/
	@SuppressWarnings("restriction")
	public class MappingDomainModelReferenceConverter implements DomainModelReferenceConverterEMF {
	private EMFFormsDatabindingEMF emfFormsDatabinding;
	private ServiceReference<EMFFormsDatabindingEMF> databindingServiceReference;

	/**
	* 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) {
	databindingServiceReference = bundleContext.getServiceReference(EMFFormsDatabindingEMF.class);
	setEMFFormsDatabinding(bundleContext.getService(databindingServiceReference));

	}

	/**
	* 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();
	bundleContext.ungetService(databindingServiceReference);
	}

	/**
	* {@inheritDoc}
	*
	* @see org.eclipse.emfforms.spi.core.services.databinding.DomainModelReferenceConverter#isApplicable(org.eclipse.emf.ecp.view.spi.model.VDomainModelReference)
	*/
	@Override
	public double isApplicable(VDomainModelReference domainModelReference) {
	if (domainModelReference == null) {
	throw new IllegalArgumentException("The given VDomainModelReference must not be null."); //$NON-NLS-1$
	}
	if (VMappingDomainModelReference.class.isInstance(domainModelReference)) {
	return 10d;
	}
	return NOT_APPLICABLE;
	}

	/**
	* {@inheritDoc}
	*
	* @see org.eclipse.emfforms.spi.core.services.databinding.DomainModelReferenceConverter#convertToValueProperty(org.eclipse.emf.ecp.view.spi.model.VDomainModelReference,EObject)
	*/
	@Override
	public IEMFValueProperty convertToValueProperty(VDomainModelReference domainModelReference, EObject object)
	throws DatabindingFailedException {
	if (domainModelReference == null) {
	throw new IllegalArgumentException("The given VDomainModelReference must not be null."); //$NON-NLS-1$
	}
	if (!VMappingDomainModelReference.class.isInstance(domainModelReference)) {
	throw new IllegalArgumentException(
	"DomainModelReference must be an instance of VMappingDomainModelReference."); //$NON-NLS-1$
	}

	final VMappingDomainModelReference mappingReference = VMappingDomainModelReference.class
	.cast(domainModelReference);
	if (mappingReference.getDomainModelEFeature() == null) {
	throw new DatabindingFailedException(
	"The field domainModelEFeature of the given VMappingDomainModelReference must not be null."); //$NON-NLS-1$
	}

	checkMapType(mappingReference.getDomainModelEFeature());

	final List<EReference> referencePath = mappingReference.getDomainModelEReferencePath();
	final IEMFValueProperty mappingValueProperty = new EMFValuePropertyDecorator(
	new EMFMappingValueProperty(getEditingDomain(object),
	mappingReference.getMappedClass(),
	mappingReference.getDomainModelEFeature()),
	mappingReference.getDomainModelEFeature());

	IEMFValueProperty valueProperty;
	if (referencePath.isEmpty()) {
	valueProperty = mappingValueProperty;
	} else {
	IEMFValueProperty emfValueProperty = EMFEditProperties
	.value(getEditingDomain(object), referencePath.get(0));
	for (int i = 1; i < referencePath.size(); i++) {
	emfValueProperty = emfValueProperty.value(referencePath.get(i));
	}

	valueProperty = emfValueProperty.value(mappingValueProperty);
	}

	return valueProperty.value(emfFormsDatabinding.getValueProperty(mappingReference.getDomainModelReference(),
	object));
	}

	/**
	* {@inheritDoc}
	*
	* @see org.eclipse.emfforms.spi.core.services.databinding.DomainModelReferenceConverter#convertToListProperty(org.eclipse.emf.ecp.view.spi.model.VDomainModelReference,EObject)
	*/
	@Override
	public IEMFListProperty convertToListProperty(VDomainModelReference domainModelReference, EObject object)
	throws DatabindingFailedException {
	if (domainModelReference == null) {
	throw new IllegalArgumentException("The given VDomainModelReference must not be null."); //$NON-NLS-1$
	}
	if (!VMappingDomainModelReference.class.isInstance(domainModelReference)) {
	throw new IllegalArgumentException(
	"DomainModelReference must be an instance of VMappingDomainModelReference."); //$NON-NLS-1$
	}

	final VMappingDomainModelReference mappingReference = VMappingDomainModelReference.class
	.cast(domainModelReference);
	if (mappingReference.getDomainModelEFeature() == null) {
	throw new DatabindingFailedException(
	"The field domainModelEFeature of the given VMappingDomainModelReference must not be null."); //$NON-NLS-1$
	}

	checkMapType(mappingReference.getDomainModelEFeature());

	final List<EReference> referencePath = mappingReference.getDomainModelEReferencePath();

	final IEMFValueProperty mappingValueProperty = new EMFValuePropertyDecorator(
	new EMFMappingValueProperty(getEditingDomain(object),
	mappingReference.getMappedClass(),
	mappingReference.getDomainModelEFeature()),
	mappingReference.getDomainModelEFeature());

	IEMFValueProperty valueProperty;
	if (referencePath.isEmpty()) {
	valueProperty = mappingValueProperty;
	} else {
	IEMFValueProperty emfValueProperty = EMFEditProperties
	.value(getEditingDomain(object), referencePath.get(0));
	for (int i = 1; i < referencePath.size(); i++) {
	emfValueProperty = emfValueProperty.value(referencePath.get(i));
	}

	valueProperty = emfValueProperty.value(mappingValueProperty);
	}

	return valueProperty.list(emfFormsDatabinding.getListProperty(mappingReference.getDomainModelReference(),
	object));
	}

	/**
	* Checks whether the given structural feature references a proper map to generate a value or list property.
	*
	* @param structuralFeature The feature to check
	* @throws IllegalMapTypeException if the structural feature doesn't reference a proper map.
	*/
	private void checkMapType(EStructuralFeature structuralFeature) throws IllegalMapTypeException {
	checkStructuralFeature(structuralFeature);

	final EClass eClass = (EClass) structuralFeature.getEType();
	final EStructuralFeature keyFeature = eClass.getEStructuralFeature("key"); //$NON-NLS-1$
	final EStructuralFeature valueFeature = eClass.getEStructuralFeature("value"); //$NON-NLS-1$
	if (keyFeature == null \|\| valueFeature == null) {
	throw new IllegalMapTypeException(
	"The VMappingDomainModelReference's domainModelEFeature must reference a map."); //$NON-NLS-1$
	}
	if (!EReference.class.isInstance(valueFeature)) {
	throw new IllegalMapTypeException(
	"The values of the map referenced by the VMappingDomainModelReference's domainModelEFeature must be referenced EObjects."); //$NON-NLS-1$
	}
	if (!EReference.class.isInstance(keyFeature)) {
	throw new IllegalMapTypeException(
	"The keys of the map referenced by the VMappingDomainModelReference's domainModelEFeature must be referenced EClasses."); //$NON-NLS-1$
	}
	if (!EClass.class.isAssignableFrom(((EReference) keyFeature).getEReferenceType().getInstanceClass())) {
	throw new IllegalMapTypeException(
	"The keys of the map referenced by the VMappingDomainModelReference's domainModelEFeature must be referenced EClasses."); //$NON-NLS-1$
	}
	}

	/**
	* Checks basic required properties of the given {@link EStructuralFeature}.
	*
	* @param structuralFeature The {@link EStructuralFeature} to check
	* @throws IllegalMapTypeException if something's wrong with the feature
	*/
	private void checkStructuralFeature(EStructuralFeature structuralFeature) throws IllegalMapTypeException {
	if (structuralFeature.getEType() == null) {
	throw new IllegalMapTypeException(
	"The EType of the VMappingDomainModelReference's domainModelEFeature was null."); //$NON-NLS-1$
	}
	if (structuralFeature.getEType().getInstanceClassName() == null) {
	throw new IllegalMapTypeException(
	"The InstanceClassName of the VMappingDomainModelReference's domainModelEFeature's EType was null."); //$NON-NLS-1$
	}
	if (!structuralFeature.getEType().getInstanceClassName().equals("java.util.Map$Entry")) { //$NON-NLS-1$
	throw new IllegalMapTypeException(
	"The VMappingDomainModelReference's domainModelEFeature must reference a map."); //$NON-NLS-1$
	}
	if (structuralFeature.getLowerBound() != 0 \|\| structuralFeature.getUpperBound() != -1) {
	throw new IllegalMapTypeException(
	"The VMappingDomainModelReference's domainModelEFeature must reference a map."); //$NON-NLS-1$
	}
	}

	private EditingDomain getEditingDomain(EObject object) throws DatabindingFailedException {
	return AdapterFactoryEditingDomain.getEditingDomainFor(object);
	}

	/**
	* {@inheritDoc}
	*
	* @see org.eclipse.emfforms.spi.core.services.databinding.emf.DomainModelReferenceConverterEMF#getSetting(org.eclipse.emf.ecp.view.spi.model.VDomainModelReference,
	* org.eclipse.emf.ecore.EObject)
	*/
	@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();
	final EStructuralFeature eStructuralFeature = valueProperty.getStructuralFeature();
	if (eStructuralFeature.getEType() == null) {
	throw new DatabindingFailedException(
	String.format("The eType of the feature %1$s is null.", eStructuralFeature.getName())); //$NON-NLS-1$
	}
	return InternalEObject.class.cast(eObject).eSetting(eStructuralFeature);
	}
	}