Data Transformation Engine Map Designer Reference Guide

Chapter 9 - Functional Map Wizard Properties of the Functional Map
Map Designer Reference Guide
156
Properties of the Functional Map
The Functional Map Wizard creates maps based on the map rules selected when
the wizard is activated.
Map Name
The name of the functional map to be created is specified in the map rule. The
name of the functional map must be unique within the map source file.
Tip To easily identify functional maps, you may use a specific naming convention.
Using the F_ prefix for all functional map names is a common practice. The
functional map F_RecordMap is easily identified.
Input Cards
An input card is created for each functional map argument specified.
Input Card Types
When an argument is an object name, the type for the corresponding input card is
known.
When an argument is a function that returns an input object, the type for the
corresponding input card is known. It is the type of that input object returned
from the argument. However, when an argument is a literal, or an expression
whose output does not correspond to an input object name, the yellow face
icon (
) appears next to that undefined card. You must edit the input card and
select the type.
For example, if an argument is
COUNT (Set:Input) which returns a number and
the card is undefined and has the yellow face icon (
) in the Functional Map
Wizard dialog box. To define the card, you must choose the type that the card
represents.
For information on choosing a type within the Functional Map Wizard dialog
box, see the section When an Argument Returns an Object of a Known Type.