ILE

ILE stands for Integrated Language Environment.

ILE was introduced with V3R1 of OS/400 and gave iSeries programming languages many of the capabilities that are found in modern programming languages.

Among these capabilities are...

• Static and dynamic binding to Procedures that can be coded in any ILE programming language.
• Multiple Modules can be included in a Service Program. These Service Programs are loaded at run time allowing for (something)
• Addition of the Activation Group concept for resource managment.

ILE Languages

• ILE C
• ILE CL
• ILE COBOL
• ILE RPG

Program Call Evolution

Trying to put this into perspective for people who may be more experienced with what came before and still struggling to Grok implications of new features.

Traditional (pre ILE) Program Calls

Each program can contain CALL statements that call other programs, that can be in the same or a different language. Each of the called programs can in turn call others.

These calls are resolved at execution time.

Each program object is directly compiled from a source member.