Create a new RowDecoder for type C
by combining this decoder with a RowDecoder for type B
and a function which combines an A
and a B
to a C.
Create a new RowDecoder for type B
by applying a function which might fail to a value of type A
after decoding.
Create a new RowDecoder for type B
by applying a function to a value of type A
after decoding.
A type class that provides a way to produce a value of type
A
from a Row value.