TCI - Remove warnings

* small refactoring to remove deprecation warnings
* add java doc
* other small changes

Change-Id: I186997e7d3974fec982bd13b48e7b1bc64b4404d
Signed-off-by: Eugen Neufeld <eneufeld@eclipsesource.com>
diff --git a/bundles/org.eclipse.emf.ecp.core/src/org/eclipse/emf/ecp/internal/core/util/ExtensionParser.java b/bundles/org.eclipse.emf.ecp.core/src/org/eclipse/emf/ecp/internal/core/util/ExtensionParser.java
index e19c313..c89baaa 100644
--- a/bundles/org.eclipse.emf.ecp.core/src/org/eclipse/emf/ecp/internal/core/util/ExtensionParser.java
+++ b/bundles/org.eclipse.emf.ecp.core/src/org/eclipse/emf/ecp/internal/core/util/ExtensionParser.java
@@ -75,6 +75,8 @@
 			case IExtensionDelta.REMOVED:
 				removeExtension(extension, remove);
 				break;
+			default:
+				break;
 			}
 		}
 
@@ -130,6 +132,7 @@
 
 	/**
 	 * @author Eike Stepper
+	 * @param <ELEMENT> The type of this descriptor which must extend {@link InternalRegistryElement}
 	 */
 	public static class ExtensionDescriptor<ELEMENT extends InternalRegistryElement>
 		extends ElementDescriptor<ELEMENT> {
diff --git a/bundles/org.eclipse.emf.ecp.core/src/org/eclipse/emf/ecp/spi/core/util/InternalElementRegistry.java b/bundles/org.eclipse.emf.ecp.core/src/org/eclipse/emf/ecp/spi/core/util/InternalElementRegistry.java
index 1fb6da2..e02670a 100644
--- a/bundles/org.eclipse.emf.ecp.core/src/org/eclipse/emf/ecp/spi/core/util/InternalElementRegistry.java
+++ b/bundles/org.eclipse.emf.ecp.core/src/org/eclipse/emf/ecp/spi/core/util/InternalElementRegistry.java
@@ -28,6 +28,7 @@
 
 	/**
 	 * @author Eike Stepper
+	 * @param <ELEMENT> The type of this listener, must extend an {@link ECPElement}
 	 */
 	public interface ResolveListener<ELEMENT extends ECPElement> {
 		void descriptorChanged(InternalDescriptor<ELEMENT> descriptor, boolean resolved) throws Exception;
diff --git a/bundles/org.eclipse.emf.ecp.edit.swt/src/org/eclipse/emf/ecp/edit/internal/swt/controls/AttributeMultiControlTester.java b/bundles/org.eclipse.emf.ecp.edit.swt/src/org/eclipse/emf/ecp/edit/internal/swt/controls/AttributeMultiControlTester.java
index 19b12e6..4a3d7bd 100644
--- a/bundles/org.eclipse.emf.ecp.edit.swt/src/org/eclipse/emf/ecp/edit/internal/swt/controls/AttributeMultiControlTester.java
+++ b/bundles/org.eclipse.emf.ecp.edit.swt/src/org/eclipse/emf/ecp/edit/internal/swt/controls/AttributeMultiControlTester.java
@@ -94,26 +94,24 @@
 
 		if (EAttribute.class.isInstance(feature)) {
 			final Class<?> instanceClass = ((EAttribute) feature).getEAttributeType().getInstanceClass();
-			if (instanceClass != null) {
-				if (instanceClass.isPrimitive()) {
-					try {
-						final Class<?> primitive = (Class<?>) tester.getSupportedClassType().getField("TYPE").get(null);//$NON-NLS-1$
-						if (!primitive.equals(instanceClass)) {
-							return NOT_APPLICABLE;
-						}
-
-					} catch (final IllegalArgumentException e) {
-						return NOT_APPLICABLE;
-					} catch (final SecurityException e) {
-						return NOT_APPLICABLE;
-					} catch (final IllegalAccessException e) {
-						return NOT_APPLICABLE;
-					} catch (final NoSuchFieldException e) {
+			if (instanceClass != null && instanceClass.isPrimitive()) {
+				try {
+					final Class<?> primitive = (Class<?>) tester.getSupportedClassType().getField("TYPE").get(null);//$NON-NLS-1$
+					if (!primitive.equals(instanceClass)) {
 						return NOT_APPLICABLE;
 					}
-				} else if (!tester.getSupportedClassType().isAssignableFrom(instanceClass)) {
+
+				} catch (final IllegalArgumentException e) {
+					return NOT_APPLICABLE;
+				} catch (final SecurityException e) {
+					return NOT_APPLICABLE;
+				} catch (final IllegalAccessException e) {
+					return NOT_APPLICABLE;
+				} catch (final NoSuchFieldException e) {
 					return NOT_APPLICABLE;
 				}
+			} else if (instanceClass != null && !tester.getSupportedClassType().isAssignableFrom(instanceClass)) {
+				return NOT_APPLICABLE;
 			}
 		} else if (EReference.class.isInstance(feature)) {
 			return NOT_APPLICABLE;
diff --git a/bundles/org.eclipse.emf.ecp.edit.swt/src/org/eclipse/emf/ecp/edit/internal/swt/controls/NumericalControl.java b/bundles/org.eclipse.emf.ecp.edit.swt/src/org/eclipse/emf/ecp/edit/internal/swt/controls/NumericalControl.java
index 544431e..709a211 100644
--- a/bundles/org.eclipse.emf.ecp.edit.swt/src/org/eclipse/emf/ecp/edit/internal/swt/controls/NumericalControl.java
+++ b/bundles/org.eclipse.emf.ecp.edit.swt/src/org/eclipse/emf/ecp/edit/internal/swt/controls/NumericalControl.java
@@ -188,28 +188,12 @@
 						boolean maxValue = false;
 						final Class<?> instanceClass = getInstanceClass();
 						String formatedValue = ""; //$NON-NLS-1$
-						try {
-							if (Integer.class.isAssignableFrom(instanceClass)
-								|| Integer.class.getField("TYPE").get(null).equals(instanceClass)) { //$NON-NLS-1$
-								if (Integer.MAX_VALUE == number.intValue()) {
-									maxValue = true;
-									formatedValue = format.format(Integer.MAX_VALUE);
-								}
-							} else if (Long.class.isAssignableFrom(instanceClass)
-								|| Long.class.getField("TYPE").get(null).equals(instanceClass)) { //$NON-NLS-1$
-								if (Long.MAX_VALUE == number.longValue()) {
-									maxValue = true;
-									formatedValue = format.format(Long.MAX_VALUE);
-								}
-							}
-						} catch (final IllegalArgumentException ex) {
-							Activator.logException(ex);
-						} catch (final SecurityException ex) {
-							Activator.logException(ex);
-						} catch (final IllegalAccessException ex) {
-							Activator.logException(ex);
-						} catch (final NoSuchFieldException ex) {
-							Activator.logException(ex);
+						if (isOfClass(Integer.class, instanceClass) && Integer.MAX_VALUE == number.intValue()) {
+							maxValue = true;
+							formatedValue = format.format(Integer.MAX_VALUE);
+						} else if (isOfClass(Long.class, instanceClass) && Long.MAX_VALUE == number.longValue()) {
+							maxValue = true;
+							formatedValue = format.format(Long.MAX_VALUE);
 						}
 
 						if (maxValue) {
@@ -238,6 +222,16 @@
 			}
 		}
 
+		private <T extends Number> boolean isOfClass(Class<T> clazz, Class<?> toCheck) {
+			try {
+				return clazz.isAssignableFrom(toCheck)
+					|| clazz.getField("TYPE").get(null).equals(toCheck); //$NON-NLS-1$
+			} catch (IllegalArgumentException | IllegalAccessException | NoSuchFieldException | SecurityException ex) {
+				Activator.logException(ex);
+				return false;
+			}
+		}
+
 		private Object revertToOldValue(final Object value) {
 
 			if (getFirstStructuralFeature().getDefaultValue() == null && (value == null || value.equals(""))) { //$NON-NLS-1$
diff --git a/bundles/org.eclipse.emf.ecp.edit.swt/src/org/eclipse/emf/ecp/edit/internal/swt/reference/ReferenceMultiControl.java b/bundles/org.eclipse.emf.ecp.edit.swt/src/org/eclipse/emf/ecp/edit/internal/swt/reference/ReferenceMultiControl.java
index b8d493f..628b4ef 100644
--- a/bundles/org.eclipse.emf.ecp.edit.swt/src/org/eclipse/emf/ecp/edit/internal/swt/reference/ReferenceMultiControl.java
+++ b/bundles/org.eclipse.emf.ecp.edit.swt/src/org/eclipse/emf/ecp/edit/internal/swt/reference/ReferenceMultiControl.java
@@ -15,7 +15,6 @@
 package org.eclipse.emf.ecp.edit.internal.swt.reference;
 
 import org.eclipse.emf.ecore.EStructuralFeature.Setting;
-import org.eclipse.emf.ecp.edit.internal.swt.Activator;
 import org.eclipse.emf.ecp.edit.internal.swt.controls.MultiControl;
 import org.eclipse.emf.ecp.edit.spi.ReferenceService;
 import org.eclipse.emf.ecp.edit.spi.swt.actions.ECPSWTAction;
diff --git a/bundles/org.eclipse.emf.ecp.edit.swt/src/org/eclipse/emf/ecp/edit/internal/swt/table/NumberCellEditor.java b/bundles/org.eclipse.emf.ecp.edit.swt/src/org/eclipse/emf/ecp/edit/internal/swt/table/NumberCellEditor.java
index 4880d75..dfddaf3 100644
--- a/bundles/org.eclipse.emf.ecp.edit.swt/src/org/eclipse/emf/ecp/edit/internal/swt/table/NumberCellEditor.java
+++ b/bundles/org.eclipse.emf.ecp.edit.swt/src/org/eclipse/emf/ecp/edit/internal/swt/table/NumberCellEditor.java
@@ -82,28 +82,12 @@
 						boolean maxValue = false;
 						final Class<?> instanceClass = getInstanceClass();
 						String formatedValue = ""; //$NON-NLS-1$
-						try {
-							if (Integer.class.isAssignableFrom(instanceClass)
-								|| Integer.class.getField("TYPE").get(null).equals(instanceClass)) { //$NON-NLS-1$
-								if (Integer.MAX_VALUE == number.intValue()) {
-									maxValue = true;
-									formatedValue = format.format(Integer.MAX_VALUE);
-								}
-							} else if (Long.class.isAssignableFrom(instanceClass)
-								|| Long.class.getField("TYPE").get(null).equals(instanceClass)) { //$NON-NLS-1$
-								if (Long.MAX_VALUE == number.longValue()) {
-									maxValue = true;
-									formatedValue = format.format(Long.MAX_VALUE);
-								}
-							}
-						} catch (final IllegalArgumentException ex) {
-							Activator.logException(ex);
-						} catch (final SecurityException ex) {
-							Activator.logException(ex);
-						} catch (final IllegalAccessException ex) {
-							Activator.logException(ex);
-						} catch (final NoSuchFieldException ex) {
-							Activator.logException(ex);
+						if (isOfClass(Integer.class, instanceClass) && Integer.MAX_VALUE == number.intValue()) {
+							maxValue = true;
+							formatedValue = format.format(Integer.MAX_VALUE);
+						} else if (isOfClass(Long.class, instanceClass) && Long.MAX_VALUE == number.longValue()) {
+							maxValue = true;
+							formatedValue = format.format(Long.MAX_VALUE);
 						}
 
 						if (maxValue) {
@@ -132,6 +116,16 @@
 			}
 		}
 
+		private <T extends Number> boolean isOfClass(Class<T> clazz, Class<?> toCheck) {
+			try {
+				return clazz.isAssignableFrom(toCheck)
+					|| clazz.getField("TYPE").get(null).equals(toCheck); //$NON-NLS-1$
+			} catch (IllegalArgumentException | IllegalAccessException | NoSuchFieldException | SecurityException ex) {
+				Activator.logException(ex);
+				return false;
+			}
+		}
+
 		private Object revertToOldValue(final Object value) {
 
 			if (eStructuralFeature.getDefaultValue() == null && (value == null || value.equals(""))) { //$NON-NLS-1$
diff --git a/bundles/org.eclipse.emf.ecp.ui/src/org/eclipse/emf/ecp/internal/ui/model/PropertiesLabelProvider.java b/bundles/org.eclipse.emf.ecp.ui/src/org/eclipse/emf/ecp/internal/ui/model/PropertiesLabelProvider.java
index 76b0fe4..42a8da2 100644
--- a/bundles/org.eclipse.emf.ecp.ui/src/org/eclipse/emf/ecp/internal/ui/model/PropertiesLabelProvider.java
+++ b/bundles/org.eclipse.emf.ecp.ui/src/org/eclipse/emf/ecp/internal/ui/model/PropertiesLabelProvider.java
@@ -21,15 +21,19 @@
 import org.eclipse.swt.graphics.Image;
 
 /**
+ * A {@link LabelProvider} for properties.
+ * 
  * @author Eike Stepper
  */
 public class PropertiesLabelProvider extends LabelProvider implements ITableLabelProvider {
 	private static final Image PROPERTY = Activator.getImage("icons/property_obj.gif"); //$NON-NLS-1$
 
+	/**
+	 * Default constructor.
+	 */
 	public PropertiesLabelProvider() {
 	}
 
-	/** {@inheritDoc} */
 	@Override
 	public String getColumnText(Object element, int columnIndex) {
 		if (element instanceof Map.Entry) {
@@ -41,19 +45,22 @@
 
 			case 1:
 				return entry.getValue();
+			default:
+				return null;
 			}
 		}
 
 		return null;
 	}
 
-	/** {@inheritDoc} */
 	@Override
 	public Image getColumnImage(Object element, int columnIndex) {
 		if (element instanceof Map.Entry) {
 			switch (columnIndex) {
 			case 0:
 				return PROPERTY;
+			default:
+				return null;
 			}
 		}
 
diff --git a/bundles/org.eclipse.emf.ecp.ui/src/org/eclipse/emf/ecp/ui/common/ECPCompositeFactory.java b/bundles/org.eclipse.emf.ecp.ui/src/org/eclipse/emf/ecp/ui/common/ECPCompositeFactory.java
index b767136..5684c6d 100644
--- a/bundles/org.eclipse.emf.ecp.ui/src/org/eclipse/emf/ecp/ui/common/ECPCompositeFactory.java
+++ b/bundles/org.eclipse.emf.ecp.ui/src/org/eclipse/emf/ecp/ui/common/ECPCompositeFactory.java
@@ -70,6 +70,7 @@
 	}
 
 	/**
+	 * Util method to create a composite which allows to ceate an ECP project.
 	 *
 	 * @param providers the providers to be considered to create a new project
 	 * @return A {@link CreateProjectComposite} allowing to create a new project
@@ -78,16 +79,38 @@
 		return new CreateProjectCompositeImpl(providers);
 	}
 
+	/**
+	 * Util method to create a composite which allows to select Classes from {@link EPackage}s with a checkbox.
+	 *
+	 * @param ePackages The {@link EPackage}s to select from.
+	 * @return The {@link CheckedModelClassComposite}
+	 */
 	public static CheckedModelClassComposite getCheckedModelClassComposite(Collection<EPackage> ePackages) {
 		return new CheckedSelectModelClassCompositeImpl(new HashSet<EPackage>(), ePackages, new HashSet<EClass>());
 	}
 
+	/**
+	 * Util method to create a composite which allows to select an {@link EClass} based on all known {@link EPackage}s
+	 * in the registry by applying the provided filters.
+	 *
+	 * @param unsupportedEPackages The {@link EPackage}s that should not be available (blacklist)
+	 * @param filteredEPackages The {@link EPackage}s that should be available (whitelist)
+	 * @param filteredEClasses The {@link EClass}es that should be available (whitelist)
+	 * @return The {@link SelectionComposite} based on a {@link TreeViewer}
+	 */
 	public static SelectionComposite<TreeViewer> getSelectModelClassComposite(
 		Collection<EPackage> unsupportedEPackages, Collection<EPackage> filteredEPackages,
 		Collection<EClass> filteredEClasses) {
 		return new SelectModelClassCompositeImpl(unsupportedEPackages, filteredEPackages, filteredEClasses);
 	}
 
+	/**
+	 * Util method to create a composite which allows to select an {@link EClass} based on all known {@link EPackage}s
+	 * in the registry by applying the filters in the provided project.
+	 * 
+	 * @param project The {@link ECPProject} to use as a filter
+	 * @return The {@link SelectionComposite} based on a {@link TreeViewer}
+	 */
 	public static SelectionComposite<TreeViewer> getSelectModelClassComposite(ECPProject project) {
 		return new ECPProjectSelectionModelClassCompositeImpl(project);
 	}
diff --git a/bundles/org.eclipse.emf.ecp.ui/src/org/eclipse/emf/ecp/ui/common/ECPViewerFactory.java b/bundles/org.eclipse.emf.ecp.ui/src/org/eclipse/emf/ecp/ui/common/ECPViewerFactory.java
index b2629fc..b6b3266 100644
--- a/bundles/org.eclipse.emf.ecp.ui/src/org/eclipse/emf/ecp/ui/common/ECPViewerFactory.java
+++ b/bundles/org.eclipse.emf.ecp.ui/src/org/eclipse/emf/ecp/ui/common/ECPViewerFactory.java
@@ -44,11 +44,24 @@
 import org.eclipse.swt.widgets.Composite;
 
 /**
- * @author Eugen
+ * Utility class to create components for ECP.
+ *
+ * @author Eugen Neufeld
  *
  */
-public class ECPViewerFactory {
+public final class ECPViewerFactory {
 
+	private ECPViewerFactory() {
+	}
+
+	/**
+	 * Create the ECP ModelExplorer View which is based on the {@link TreeViewer}.
+	 *
+	 * @param parent The {@link Composite} to create onto
+	 * @param hasDnD Whether dnd should be enabled
+	 * @param labelDecorator The {@link ILabelDecorator} to use on labels.
+	 * @return The created {@link TreeViewer}
+	 */
 	public static TreeViewer createModelExplorerViewer(Composite parent, boolean hasDnD,
 		ILabelDecorator labelDecorator) {
 		final ModelContentProvider contentProvider = new ModelContentProvider();
@@ -90,20 +103,15 @@
 		return viewer;
 	}
 
-	/**
-	 * @param contentProvider
-	 * @param viewer
-	 * @return
-	 */
 	private static ECPDropAdapter getDropAdapter(ModelContentProvider contentProvider, TreeViewer viewer) {
 		ECPDropAdapter dropAdapter = null;
 		// read extensionpoint, if no defined take default
 		final IExtensionPoint extensionPoint = Platform.getExtensionRegistry().getExtensionPoint(
-			"org.eclipse.emf.ecp.ui.dropAdapter");
+			"org.eclipse.emf.ecp.ui.dropAdapter"); //$NON-NLS-1$
 		for (final IExtension extension : extensionPoint.getExtensions()) {
 			final IConfigurationElement configurationElement = extension.getConfigurationElements()[0];
 			try {
-				dropAdapter = (ECPDropAdapter) configurationElement.createExecutableExtension("class");
+				dropAdapter = (ECPDropAdapter) configurationElement.createExecutableExtension("class"); //$NON-NLS-1$
 				dropAdapter.setViewer(viewer);
 				break;
 			} catch (final CoreException ex) {
@@ -116,20 +124,15 @@
 		return dropAdapter;
 	}
 
-	/**
-	 * @param contentProvider
-	 * @param viewer
-	 * @return
-	 */
 	private static ILabelProvider getLabelProvider(ModelContentProvider contentProvider) {
 		IECPLabelProvider labelProvider = null;
 		// read extensionpoint, if no defined take default
 		final IExtensionPoint extensionPoint = Platform.getExtensionRegistry().getExtensionPoint(
-			"org.eclipse.emf.ecp.ui.labelProvider");
+			"org.eclipse.emf.ecp.ui.labelProvider"); //$NON-NLS-1$
 		for (final IExtension extension : extensionPoint.getExtensions()) {
 			final IConfigurationElement configurationElement = extension.getConfigurationElements()[0];
 			try {
-				labelProvider = (IECPLabelProvider) configurationElement.createExecutableExtension("class");
+				labelProvider = (IECPLabelProvider) configurationElement.createExecutableExtension("class"); //$NON-NLS-1$
 				labelProvider.setModelContextProvider(contentProvider);
 				return labelProvider;
 			} catch (final CoreException ex) {
@@ -141,6 +144,13 @@
 		return labelProvider;
 	}
 
+	/**
+	 * Create the ECP RepositoryExplorer View which is based on the {@link TreeViewer}.
+	 * 
+	 * @param parent The {@link Composite} to create onto
+	 * @param labelDecorator The {@link ILabelDecorator} to use on labels
+	 * @return The create {@link TreeViewer}
+	 */
 	public static TreeViewer createRepositoryExplorerViewer(Composite parent, ILabelDecorator labelDecorator) {
 		final RepositoriesContentProvider contentProvider = new RepositoriesContentProvider();
 		final TreeViewer viewer = TreeViewerFactory.createTreeViewer(parent, new RepositoriesLabelProvider(
diff --git a/bundles/org.eclipse.emfforms.common.validation/src/org/eclipse/emfforms/common/internal/validation/ValidationServiceImpl.java b/bundles/org.eclipse.emfforms.common.validation/src/org/eclipse/emfforms/common/internal/validation/ValidationServiceImpl.java
index 1ca57e2..31ffeed 100644
--- a/bundles/org.eclipse.emfforms.common.validation/src/org/eclipse/emfforms/common/internal/validation/ValidationServiceImpl.java
+++ b/bundles/org.eclipse.emfforms.common.validation/src/org/eclipse/emfforms/common/internal/validation/ValidationServiceImpl.java
@@ -283,6 +283,7 @@
 		validators.remove(validator);
 	}
 
+	@Deprecated
 	@Override
 	public void registerValidationFilter(ValidationFilter filter) {
 		if (filter instanceof ObjectFilter) {
@@ -296,6 +297,7 @@
 		}
 	}
 
+	@Deprecated
 	@Override
 	public void unregisterValidationFilter(ValidationFilter filter) {
 		getObjectFilters().remove(filter);
diff --git a/bundles/org.eclipse.emfforms.ide.builder/src/org/eclipse/emfforms/ide/internal/builder/ViewModelValidationDelegate.java b/bundles/org.eclipse.emfforms.ide.builder/src/org/eclipse/emfforms/ide/internal/builder/ViewModelValidationDelegate.java
index 6172c51..5ce72e3 100644
--- a/bundles/org.eclipse.emfforms.ide.builder/src/org/eclipse/emfforms/ide/internal/builder/ViewModelValidationDelegate.java
+++ b/bundles/org.eclipse.emfforms.ide.builder/src/org/eclipse/emfforms/ide/internal/builder/ViewModelValidationDelegate.java
@@ -20,7 +20,6 @@
 import org.eclipse.core.resources.IFile;
 import org.eclipse.emf.common.notify.Notifier;
 import org.eclipse.emf.common.notify.impl.AdapterImpl;
-import org.eclipse.emf.common.util.Diagnostic;
 import org.eclipse.emf.common.util.URI;
 import org.eclipse.emf.ecore.EObject;
 import org.eclipse.emf.ecore.resource.Resource;
@@ -32,12 +31,9 @@
 import org.eclipse.emf.ecp.view.spi.model.VView;
 import org.eclipse.emf.ecp.view.spi.model.VViewModelProperties;
 import org.eclipse.emf.ecp.view.spi.model.util.ViewModelPropertiesHelper;
-import org.eclipse.emf.ecp.view.spi.model.util.ViewValidator;
 import org.eclipse.emfforms.bazaar.Bid;
 import org.eclipse.emfforms.bazaar.Create;
-import org.eclipse.emfforms.common.Optional;
 import org.eclipse.emfforms.common.spi.validation.ValidationService;
-import org.eclipse.emfforms.common.spi.validation.filter.AbstractComplexFilter;
 import org.eclipse.emfforms.ide.builder.ValidationDelegate;
 import org.eclipse.emfforms.ide.builder.ValidationDelegateProvider;
 import org.eclipse.emfforms.ide.builder.ValidationServiceDelegate;
@@ -97,23 +93,11 @@
 		final VViewModelProperties properties = ViewModelPropertiesHelper.getInhertitedPropertiesOrEmpty(view);
 		view.setLoadingProperties(properties);
 
-		validationService.registerValidationFilter(new ViewValidatorDuplicateFilter());
+		validationService.addObjectFilter(this::skipValidation);
 	}
 
-	/**
-	 * Filter to avoid duplications in validation from {@link ViewValidator}.
-	 */
-	private class ViewValidatorDuplicateFilter extends AbstractComplexFilter {
-		@Override
-		public boolean skipSubtree(EObject eObject, Optional<Diagnostic> diagnostic) {
-			return false;
-		}
-
-		@Override
-		public boolean skipValidation(EObject eObject) {
-			return VDomainModelReference.class.isInstance(eObject);
-		}
-
+	private boolean skipValidation(EObject eObject) {
+		return VDomainModelReference.class.isInstance(eObject);
 	}
 
 	//