The document discusses key concepts in the Interface Definition Language (IDL) used in Common Object Request Broker Architecture (CORBA). It covers IDL ground rules like case sensitivity, syntax, comments, and modules. It also describes various IDL data types including primitive types like boolean, char, floating point, integer types and constructed types like enumerations, structures, unions, and interfaces. Methods, parameters, direction qualifiers like in, out, inout are explained. The document also discusses one-way methods and how they allow non-blocking remote procedure calls.

1. CORBA - IDL Roy Antony Arnold G, Lecturer, Panimalar Engineering College, Chennai, India Unit – 4

4. Data Types

21. Contd… Processing returns Component A Component B processing Method invocation Method returns Blocked on method call

23. Contd… Processing Continues (no blocking) Component A Component B processing oneway Method invocation Method finishes