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/*****************************************************************************
* Copyright (c) 2015,2020 CEA LIST.
*
* 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:
* Nicolas FAUVERGUE (ALL4TEC) nicolas.fauvergue@all4tec.net - Initial API and implementation
* Ansgar Radermacher (CEA LIST) Ansgar.Radermacher@cea.fr - bug567454
*
*****************************************************************************/
package org.eclipse.papyrus.uml.textedit.valuespecification.xtext.ui.constraint;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.papyrus.infra.gmfdiag.extensionpoints.editors.configuration.IDirectEditorConstraint;
import org.eclipse.uml2.uml.MultiplicityElement;
import org.eclipse.uml2.uml.UMLPackage;
import org.eclipse.uml2.uml.ValueSpecification;
/**
* This class allow to define a constraint corresponding to the multiplicity upper value.
*/
public class MultiplicityUpperValueDirectEditorConstraint implements IDirectEditorConstraint {
/**
* Constructor.
*/
public MultiplicityUpperValueDirectEditorConstraint() {
super();
}
/**
* @see org.eclipse.papyrus.infra.gmfdiag.extensionpoints.editors.configuration.IDirectEditorConstraint#getLabel()
*
* @return The label.
*/
public String getLabel() {
return " Multiplicity Element Upper Value"; //$NON-NLS-1$
}
/**
* @see org.eclipse.papyrus.infra.gmfdiag.extensionpoints.editors.configuration.IDirectEditorConstraint#appliesTo(java.lang.Object)
*
* @param selection
* the current selection
* @return <code>true</code> if selection matches the constraint, otherwise <code>false</code>
*/
public boolean appliesTo(final Object selection) {
boolean appliedConstraint = false;
// Check that the selection is a structural feature and the lower value of multiplicity element
if (selection instanceof EStructuralFeature && UMLPackage.eINSTANCE.getMultiplicityElement_UpperValue().equals(selection)) {
appliedConstraint = true;
} else if (selection instanceof ValueSpecification) {
final ValueSpecification valueSpecification = (ValueSpecification) selection;
if (valueSpecification.eContainer() instanceof MultiplicityElement) {
final EObject parent = valueSpecification.eContainer();
final Object upperValue = parent.eGet(UMLPackage.eINSTANCE.getMultiplicityElement_UpperValue());
appliedConstraint = valueSpecification.equals(upperValue);
}
}
return appliedConstraint;
}
}
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