Java tutorial
/** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Copyright (C) 2007 Matthias Braeuer (braeuer.matthias@web.de). * * All rights reserved. * * * * This work was done as a project at the Chair for Software Technology, * * Dresden University Of Technology, Germany (http://st.inf.tu-dresden.de). * * It is understood that any modification not identified as such is not * * covered by the preceding statement. * * * * This work is free software; you can redistribute it and/or modify it * * under the terms of the GNU Library General Public License as published * * by the Free Software Foundation; either version 2 of the License, or * * (at your option) any later version. * * * * This work is distributed in the hope that it will be useful, but WITHOUT * * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public * * License for more details. * * * * You should have received a copy of the GNU Library General Public License * * along with this library; if not, you can view it online at * * http://www.fsf.org/licensing/licenses/gpl.html. * * * * To submit a bug report, send a comment, or get the latest news on this * * project, please visit the website: http://dresden-ocl.sourceforge.net. * * For more information on OCL and related projects visit the OCL Portal: * * http://st.inf.tu-dresden.de/ocl * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * $Id$ */ package org.dresdenocl.pivotmodel.provider; import java.util.Collection; import java.util.Iterator; import java.util.List; import org.apache.commons.lang.StringUtils; import org.eclipse.emf.common.notify.AdapterFactory; import org.eclipse.emf.common.notify.Notification; import org.eclipse.emf.ecore.EStructuralFeature; import org.eclipse.emf.edit.provider.ComposeableAdapterFactory; import org.eclipse.emf.edit.provider.IEditingDomainItemProvider; import org.eclipse.emf.edit.provider.IItemLabelProvider; import org.eclipse.emf.edit.provider.IItemPropertyDescriptor; import org.eclipse.emf.edit.provider.IItemPropertySource; import org.eclipse.emf.edit.provider.IStructuredItemContentProvider; import org.eclipse.emf.edit.provider.ITreeItemContentProvider; import org.eclipse.emf.edit.provider.ViewerNotification; import org.dresdenocl.pivotmodel.GenericType; import org.dresdenocl.pivotmodel.Namespace; import org.dresdenocl.pivotmodel.PivotModelFactory; import org.dresdenocl.pivotmodel.PivotModelPackage; import org.dresdenocl.pivotmodel.TypeParameter; import org.dresdenocl.pivotmodel.impl.PivotModelPackageImpl; /** * This is the item provider adapter for a * {@link org.dresdenocl.pivotmodel.Namespace} object. <!-- * begin-user-doc --> <!-- end-user-doc --> * * @generated */ public class NamespaceItemProvider extends NamedElementItemProvider { /** * This constructs an instance from a factory and a notifier. <!-- * begin-user-doc --> <!-- end-user-doc --> * * @generated */ public NamespaceItemProvider(AdapterFactory adapterFactory) { super(adapterFactory); } /** * This returns the property descriptors for the adapted class. <!-- * begin-user-doc --> <!-- end-user-doc --> * * @generated */ @Override public List<IItemPropertyDescriptor> getPropertyDescriptors(Object object) { if (itemPropertyDescriptors == null) { super.getPropertyDescriptors(object); addNestingNamespacePropertyDescriptor(object); } return itemPropertyDescriptors; } /** * This adds a property descriptor for the Nesting Namespace feature. <!-- * begin-user-doc --> <!-- end-user-doc --> * * @generated */ protected void addNestingNamespacePropertyDescriptor(Object object) { itemPropertyDescriptors.add(createItemPropertyDescriptor( ((ComposeableAdapterFactory) adapterFactory).getRootAdapterFactory(), getResourceLocator(), getString("_UI_Namespace_nestingNamespace_feature"), //$NON-NLS-1$ getString("_UI_PropertyDescriptor_description", "_UI_Namespace_nestingNamespace_feature", //$NON-NLS-1$//$NON-NLS-2$ "_UI_Namespace_type"), //$NON-NLS-1$ PivotModelPackage.Literals.NAMESPACE__NESTING_NAMESPACE, false, false, false, null, null, 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(PivotModelPackage.Literals.GENERIC_ELEMENT__OWNED_TYPE_PARAMETER); childrenFeatures.add(PivotModelPackage.Literals.NAMESPACE__OWNED_TYPE); childrenFeatures.add(PivotModelPackage.Literals.NAMESPACE__OWNED_RULE); childrenFeatures.add(PivotModelPackage.Literals.NAMESPACE__NESTED_NAMESPACE); } 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); } /** * This returns Namespace.gif. * <!-- begin-user-doc --> <!-- end-user-doc --> * @generated */ @Override public Object getImage(Object object) { return overlayImage(object, getResourceLocator().getImage("full/obj16/Namespace")); //$NON-NLS-1$ } /** * This returns the label text for the adapted class. * * <p> * The EMF implementation is changed to return the name of the adapted * {@link Namespace} or <code>null</code> if no name is set. Existing type * parameters are appended as well. * </p> * * @generated NOT */ @Override public String getText(Object object) { StringBuilder label; Namespace namespace; // cast namespace namespace = (Namespace) object; // initialize with name label = new StringBuilder(StringUtils.defaultIfEmpty(namespace.getName(), "null")); //$NON-NLS-1$ // append type parameters if there are any if (!namespace.getOwnedTypeParameter().isEmpty()) { label.append('<'); for (Iterator<TypeParameter> it = namespace.getOwnedTypeParameter().iterator(); it.hasNext();) { label.append(it.next().getName()); if (it.hasNext()) { label.append(", "); //$NON-NLS-1$ } } label.append('>'); } return label.toString(); } /** * 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}. * * <p> * The EMF implementation is adapted to send label notifications if the owned * type parameters change. * </p> * * @generated NOT */ @Override public void notifyChanged(Notification notification) { updateChildren(notification); switch (notification.getFeatureID(Namespace.class)) { case PivotModelPackageImpl.NAMESPACE__OWNED_TYPE_PARAMETER: fireNotifyChanged(new ViewerNotification(notification, notification.getNotifier(), true, true)); return; case PivotModelPackageImpl.NAMESPACE__OWNED_TYPE: case PivotModelPackageImpl.NAMESPACE__OWNED_RULE: case PivotModelPackageImpl.NAMESPACE__NESTED_NAMESPACE: fireNotifyChanged(new ViewerNotification(notification, notification.getNotifier(), true, false)); return; } super.notifyChanged(notification); } /** * This adds to the collection of * {@link org.eclipse.emf.edit.command.CommandParameter}s describing all of * the children that can be created under this object. * * <p> * The EMF implementation is adapted in order not to include the * {@link GenericType}. Generic types are created automatically so we do not * want the editor to show them. * </p> * * @generated NOT */ @Override protected void collectNewChildDescriptors(Collection<Object> newChildDescriptors, Object object) { super.collectNewChildDescriptors(newChildDescriptors, object); newChildDescriptors .add(createChildParameter(PivotModelPackageImpl.Literals.GENERIC_ELEMENT__OWNED_TYPE_PARAMETER, PivotModelFactory.eINSTANCE.createTypeParameter())); newChildDescriptors.add(createChildParameter(PivotModelPackageImpl.Literals.NAMESPACE__NESTED_NAMESPACE, PivotModelFactory.eINSTANCE.createNamespace())); newChildDescriptors.add(createChildParameter(PivotModelPackageImpl.Literals.NAMESPACE__OWNED_TYPE, PivotModelFactory.eINSTANCE.createType())); newChildDescriptors.add(createChildParameter(PivotModelPackageImpl.Literals.NAMESPACE__OWNED_TYPE, PivotModelFactory.eINSTANCE.createPrimitiveType())); newChildDescriptors.add(createChildParameter(PivotModelPackageImpl.Literals.NAMESPACE__OWNED_TYPE, PivotModelFactory.eINSTANCE.createEnumeration())); newChildDescriptors.add(createChildParameter(PivotModelPackageImpl.Literals.NAMESPACE__OWNED_RULE, PivotModelFactory.eINSTANCE.createConstraint())); } }