Objectstar Programming Skill

When to Use This Skill

• User provides Objectstar source code or mentions .OSB / MetaStore / screen rules
• User asks about migrating a legacy mainframe system using TIBCO OSB
• User asks about understanding code using GET, FORALL, ON GETFAIL, DISPLAY, REPLACE, etc.
• Static analysis, refactoring, or modernization of Objectstar code

Language Overview

Objectstar rules are declarative procedures with four sections:

• DECLARATION: Rule name, parameters, LOCAL variables
• CONDITIONS: Y/N matrix logic (no IF/THEN/ELSE exists)
• ACTIONS: Numbered execution sequence per condition column
• EXCEPTIONS: Structured handlers (GETFAIL, LOCKFAIL, etc.)

Used in both interactive OTP (3270 screens) and batch (job stream) contexts.

Condition Quadrants (Critical Concept)