Informix Error -4163

-4163 Intrinsic function "name" of class "class" cannot be called directly.

Constructors of the form classname::classname() are invoked through the NEW operator. The classname::!copy() is invoked through the COPY operator. The classname::!derive() is invoked through the AS clause in both the NEW and the COPY operator. Only NewEra returns this error.