Papyrus provides via "GMF runtime" an API to edit UML element.
The modification is related to the command context UNDO/REDO
Papyrus use the FrameworkElementType in order to manage the life cycle.
This framework enables the consistency of UML model and graphical Model.
Following is a description of the basic steps
IElementEditService provider = ElementEditServiceUtils.getCommandProvider(editedElement); command = provider.getEditCommand(yourRequest)
domain.getCommandStack().execute(new GMFtoEMFCommandWrapper(command));
/*****************************************************************************
* Copyright (c) 2020 CEA LIST and others.
*
* 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
* http://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* CEA LIST - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.uml.diagram.clazz.custom.command;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.emf.transaction.util.TransactionUtil;
import org.eclipse.gmf.runtime.common.core.command.ICommand;
import org.eclipse.gmf.runtime.emf.type.core.requests.CreateElementRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.DestroyElementRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.SetRequest;
import org.eclipse.papyrus.infra.emf.gmf.command.GMFtoEMFCommandWrapper;
import org.eclipse.papyrus.infra.services.edit.service.ElementEditServiceUtils;
import org.eclipse.papyrus.infra.services.edit.service.IElementEditService;
import org.eclipse.papyrus.uml.service.types.element.UMLElementTypes;
import org.eclipse.uml2.uml.NamedElement;
import org.eclipse.uml2.uml.Package;
import org.eclipse.uml2.uml.UMLPackage;
/**
* editing elements example
*/
public class EditElementExample {
/**
* Create a Class in a UML Package
*
* @param pack
* the package owner
*/
public static void createAClass(final Package pack) {
TransactionalEditingDomain domain = TransactionUtil.getEditingDomain(pack);
// create a Class inside a package (here the containment feature is automatically deduced by the framework, but you can specify it
CreateElementRequest request = new CreateElementRequest(domain, pack, UMLElementTypes.CLASS);
IElementEditService provider = ElementEditServiceUtils.getCommandProvider(pack);
ICommand command = provider.getEditCommand(request);
domain.getCommandStack().execute(new GMFtoEMFCommandWrapper(command));
}
/**
* Destroy an element
*
* @param element
* the element to destroy
*/
public static void destroyAnElement(final EObject element) {
TransactionalEditingDomain domain = TransactionUtil.getEditingDomain(element);
DestroyElementRequest request = new DestroyElementRequest(element, false);
IElementEditService provider = ElementEditServiceUtils.getCommandProvider(element);
ICommand command = provider.getEditCommand(request);
domain.getCommandStack().execute(new GMFtoEMFCommandWrapper(command));
}
/**
* How to rename a NamedElement
*
* @param namedElement
* the element to rename
* @param newName
* the new name of the element
*/
public static void renameANamedElement(final NamedElement namedElement, final String newName) {
TransactionalEditingDomain domain = TransactionUtil.getEditingDomain(namedElement);
SetRequest request = new SetRequest(namedElement, UMLPackage.eINSTANCE.getNamedElement_Name(), newName);
IElementEditService provider = ElementEditServiceUtils.getCommandProvider(namedElement);
ICommand command = provider.getEditCommand(request);
domain.getCommandStack().execute(new GMFtoEMFCommandWrapper(command));
}
}