Internals¶
Introduction¶
The intention of this book is to provide details about the internals of the FWD technology. This includes both the conversion and the runtime.
This book is being written at this time. Most of the content is not yet complete.
General¶
4GL Compatibility
Maintaining the List of Software Dependencies and Licenses
Conversion¶
Parsing¶
Progress 4GL to Java¶
TRPL¶
Understanding ASTs and TRPL
Writing TRPL Rule-Sets
Writing TRPL Expressions
Debugging TRPL
Runtime¶
Base Language¶
Implementing the Legacy OE Classes in FWD
Database¶
Generation of SQL statements in FWD
Query Logging
Word Index and CONTAINS Operator
Storage of ABL Datatypes in SQL Databases
Adding Support For a New Database
Dynamic Database (Runtime Conversion)
User Interface¶
Split Server-Client UI
Pluggable UI Drivers
Debugging GUI
OCX Controls¶
Using OCX Controls in AppBuilder
OCX Event Procedure Support
Spreadsheet Control
Infrastructure¶
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