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/*****************************************************************************
* Copyright (c) 2018 CEA LIST 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:
* CEA LIST - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.uml.service.types.helper;
import org.eclipse.gmf.runtime.common.core.command.ICommand;
import org.eclipse.gmf.runtime.common.core.command.UnexecutableCommand;
import org.eclipse.gmf.runtime.emf.type.core.IElementType;
import org.eclipse.gmf.runtime.emf.type.core.requests.CreateElementRequest;
import org.eclipse.papyrus.uml.service.types.element.UMLElementTypes;
import org.eclipse.uml2.uml.FinalState;
import org.eclipse.uml2.uml.Region;
/**
* Edit helper class for {@link FinalState}
*
* Expected behavior:
* - Avoid to create a {@link Region} as child node of the {@link FinalState}
*
* @since 4.1
*/
public class FinalStateHelper extends ElementEditHelper {
/**
* {@inheritDoc}
*/
@Override
protected ICommand getCreateCommand(final CreateElementRequest req) {
if (!(req.getContainer() instanceof FinalState)) {
return null;
}
IElementType elementToCreate = req.getElementType();
if (UMLElementTypes.REGION == elementToCreate) {
return UnexecutableCommand.INSTANCE;
}
return super.getCreateCommand(req);
}
}
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