switch((Integer) obj.rightExpr.accept(this.scout, arg)){
case Scout.RULEVARIABLE:
final VariableOperator varOpR = new VariableOperator();
varOpR.setVariable((String)right);
final OperatorIDTuple<Operator> oidtVar = new OperatorIDTuple<Operator> (varOpR, 0);
constOpL.addSucceedingOperator(oidtVar);
break;
case Scout.CONSTANT:
final ConstantOperator constOpR = new ConstantOperator();
constOpR.setVisualRifEditor(this.visualRifEditor);