| /******************************************************************************* |
| * Copyright (c) 2011-2015 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 - initial API and implementation |
| ******************************************************************************/ |
| package org.eclipse.emfforms.spi.core.services.structuralchange; |
| |
| import org.eclipse.emf.ecore.EObject; |
| import org.eclipse.emf.ecp.view.spi.model.ModelChangeNotification; |
| import org.eclipse.emf.ecp.view.spi.model.VDomainModelReference; |
| |
| /** |
| * A concrete structural change listener for a type of {@link VDomainModelReference}. |
| * |
| * @author Lucas Koehler |
| * @since 1.8 |
| * |
| */ |
| public interface StructuralChangeTesterInternal { |
| |
| /** |
| * The value that expresses that a {@link StructuralChangeTesterInternal} is not applicable for a |
| * {@link VDomainModelReference}. |
| */ |
| double NOT_APPLICABLE = Double.NEGATIVE_INFINITY; |
| |
| /** |
| * Returns a double that expresses if and how suitable this tester is for the given {@link VDomainModelReference}. |
| * |
| * @param reference The {@link VDomainModelReference} |
| * @return The value indicating how suitable this tester is, negative infinity if it can't work with the given |
| * {@link VDomainModelReference}. |
| */ |
| double isApplicable(VDomainModelReference reference); |
| |
| /** |
| * Checks whether the domain structure of the given {@link VDomainModelReference} has changed for the changes |
| * indicated by the given {@link ModelChangeNotification}. |
| * |
| * @param reference The {@link VDomainModelReference} |
| * @param domainRootObject The root object of the {@link VDomainModelReference}. |
| * @param notification The {@link ModelChangeNotification} |
| * @return true if the domain structure has changed, false otherwise |
| */ |
| boolean isStructureChanged(VDomainModelReference reference, EObject domainRootObject, |
| ModelChangeNotification notification); |
| } |