DataLoader/MX Reference Manual (G06.24+)

DataLoader/MX Components
DataLoader/MX Reference Manual—525872-002
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DataLoader/MX Structure
DataLoader/MX Structure
Internally, DataLoader/MX consists of three major components—the DataLoader/MX
main logic, user exits, and the DataLoader/MX library. Figure 2-1 shows the structure
of DataLoader/MX.
Main Logic
The main logic component performs the basic program control. It uses two other
components, the DataLoader/MX library and the user exits, to perform common
functions that might need to be extended by the user.
User Exits
The user exits module contains the user exit procedures described in User Exit
Descriptions on page 5-3. User exit procedures are called from specific points in the
main logic, allowing loading operations to be customized. The processing flowcharts in
Appendix B, Processing Flowcharts, indicate where user exits are called.
Library
The DataLoader/MX library contains modules for common functions, such as file
access, data conversion, and error handling, for use by both the main logic and user
exits. The library is described in DataLoader/MX Library on page 5-14.
Figure 2-1. Structure of DataLoader/MX
User Exits
Library
DataLoader/MX Main Logic
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