ILE Concepts

This course is designed for RPGIV programmers that need to learn ILE concepts.

It is assumed that the participants can program (RPGIV - Fix or Free-Format), but have hardly dealt with the ILE concepts to date.

OPM versus ILE versus OO

ILE Objects

• Modules, Program Objects, Service Programs
• Binder Directories, Binder Language
• Activation Groups

ILE Source Structure

• Cyclic and Linear Main Procedures
• (Internal and Exported) Sub-Procedures
• Function

Global/Local Variables

Local File Access (with native I/O)

Prototyping

• Parameter Definition and Passing
• Parameter Options
• Procedure Overloading

Binder Language

Callback Processing and Procedure Pointer

Going step by step from Programs to exported Procedures in Service Programs

• Design and Structures and Pitfalls
  • Program
  • Module (binding multiple Modules)
  • Service Programs with and without Binder Language