dam_describeScalarEx

This method is used to retrieve the description of the scalar function. When the IP-registered scalar function is called, it can use this API call to get scalar function details. This is useful when the IP registers the same scalar function to evaluate multiple scalar function names or when the scalar function supports a variable number of arguments.

int dam_describeScalarEx(
    long         hValExpList
    StringBuffer pName,
    xo_int       piNoOfActualParams,
    xo_int       piResXoType,
    xo_int       piLength,
    xo_int       piPrecision,
    xo_int       piScale)

Table 151. Parameters for dam_describeScalarEx
Parameter	Type	Description
INPUT
hValExpList	long	The handle of the scalar function argument list.
OUTPUT
pName	StringBuffer	Scalar function name
piNoOfActualParams	xo_int	The number of arguments passed to the scalar function.
piResXoType	xo_int	Scalar function result value type.
piLength	xo_int	Scalar function result value length.
piPrecision	xo_int	Scalar function result value precision.
piScale	xo_int	Scalar function result value scale.
RETURN
	int	DAM_SUCCESS - on success DAM_FAILURE - on failure