https://download.eclipse.org/modeling/emf/emf/javadoc/2.8.0/org/eclipse/emf/common/command/AbstractCommand.NonDirtying.html
AbstractCommand.NonDirtying (EMF Javadoc)
emfjavadoc
https://download.eclipse.org/modeling/emf/emf/javadoc/2.6.0/org/eclipse/emf/common/command/AbstractCommand.NonDirtying.html
AbstractCommand.NonDirtying (EMF Javadoc)
emfjavadoc