@Override
public void undo() {
this.assignment.setDiagram(null);
BehavioralPattern diagram = ((BehavioralPattern) getBehavioralPatternEditPart().getModel());
diagram.getFragments().remove(this.assignment);
this.assignment.setLeftSide(null);
this.assignment.setRightSide(null);
this.assignment.setParentOperand(null);
this.assignment.setLifeline(null);
super.undo();
}
@Override
public void redo() {
CreateBPAssignmentWizard wizard = new CreateBPAssignmentWizard(this);
wizard.setObj(this.leftSide);
WizardDialog wizardDialog =
new WizardDialog(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell(), wizard);
wizardDialog.create();
wizardDialog.open();
super.redo();
}
