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/*****************************************************************************
* Copyright (c) 2017 CEA LIST.
*
* 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:
* Thanh Liem PHAN (ALL4TEC) thanhliem.phan@all4tec.net - Bug 355731
*****************************************************************************/
package org.eclipse.papyrus.uml.service.types.helper.advice;
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.edithelper.AbstractEditHelperAdvice;
import org.eclipse.gmf.runtime.emf.type.core.requests.MoveRequest;
/**
* <pre>
* This HelperAdvice prohibits the move command of elements into a proxy element.
* </pre>
* @since 3.0
*/
public class ElementHelperAdvice extends AbstractEditHelperAdvice {
/**
* <pre>
* {@inheritDoc}
*
* Prohibit the move command of elements into a proxy element such as an unloaded submodel package.
* Without doing this, a move command following by a save command could cause the lost of information.
* The moved elements do not exist neither in the main model nor in the submodel.
* </pre>
*/
@Override
protected ICommand getBeforeMoveCommand(final MoveRequest request) {
return request.getTargetContainer().eIsProxy() ? UnexecutableCommand.INSTANCE : null;
}
}
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