OpenAccess SDK SQL Engine core methods for Java : Exchanging data : dam_getValueTypeOfExp

dam_getValueTypeOfExp

This method gets the value type of the argument passed into a scalar function implemented by the IP. This method is used when the output type of the scalar function is determined based on an argument type.

Use the methods dam_getFirstValExp and dam_getNextValExp to step through the argument list.

int dam_getValueTypeOfExp(
    long pMemTree,
    long hValExpList,
    long hValExp)

Table 226. Parameters for dam_ValueTypeOfExp
Parameter	Type	Description
INPUT
pMemTree	long	The memory tree to use for temporary storage.
hValExpList	long	The list of arguments as passed into the scalar function.
hValExp	long	The argument for which you want to retrieve the data.
RETURN
	int	The data type of the value expression. See Table 33.

dam_getValueTypeOfExp

See also