Data Transformation Engine Design Studio Tutorial

Chapter 15 - Creating a Trace File Data Validation
Design Studio Tutorial
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Trace Message Description
Offset 0 The offset of the data object in the data stream.
No offset for Customer# Field Data.
len 6 The length of the data object.
Customer# Field Data has a size length of 6
bytes.
comp 1 of 4 The component number.
Customer# Field Data is the first of four
components of the Header group type.
#1 The index of the component.
This is the first occurrence of Customer# Field
Data.
DI 00000001 The DI number is not used for debugging
purposes and may be ignored.
Data at offset 0 Same offset information.
('4500 ') A portion of the actual data.
Customer number is 4500 (and two pad spaces).
was found to be of
TYPE X'0008'
(Customer# Field
Data).
The name of the type to which it presumably
belongs.
Customer# Field Data type.
X'0008' The X number is not used for debugging purposes
and may be ignored.
Group Validation
A group is valid if the syntax is valid and all of its components are valid. A group is
validated component-by-component. A component is valid if its type is valid, its
component range is valid, and, if the component has a rule, the rule evaluates to
TRUE.
Note When a component rule is evaluated, any invalid data used in a component rule is
evaluated with a value of NONE.