Data Transformation Engine Type Designer Reference Guide

Chapter 8 - Components Defining Components
Nested Components
In a group window, nested components are displayed. For example, in the group
window of CustomerList, the component Prolog(0:1) may be expanded to show
Prolog’s components. In addition, the component XMLDesl AttList, within
Prolog, may be expanded to show XMLDesl AttList’s components.
When components are expanded, the rule cells associated with nested
components are gray. Unavailable rule cells indicate that you can add component
rules for components of a type, but cannot add component rules to nested
components or partitions.
Defining Components
Most groups need at least one component. Categories may not have components,
but you can define components for a category for inheritance purposes.
To determine the components of a group, ask yourself:
"Group type _____________ consists of what?"
For example, "The file consists of what?" The answer may be "records". So,
Record(s) is a component of that group or category type.
Suppose you have a data file containing order records for an office supply store.
You need to define the components of the type File.
To define components
1 In the type tree, double-click the type whose components you want to define.
For group types, the group window appears. For category types, the category
window appears.