code: public void setParameter(Parameter newParameter) {
  		Parameter oldParameter = parameter;
  		parameter = newParameter;
  		if (eNotificationRequired())
  			eNotify(new ENotificationImpl(this, Notification.SET, XtextPackage.PARAMETER_REFERENCE__PARAMETER, oldParameter, parameter));
  	}
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated