Welcome
Developing
Developing EGL applications
Enterprise Generation Language (EGL) is a programming language that you can use to focus on business problems instead of software technologies. Within the Rational® development environment, you can use EGL wizards and other tools to write complex applications with minimal effort.
EGL Language Reference
The EGL Language Reference covers the fundamental use of the language, including its concepts, syntax, and keywords. This volume is intended for a developer writing EGL applications with some experience in procedural programming.
Appendices
Record and file type cross-reference

Overview
Getting started
Installing
Upgrading and migrating
EGL Code Accelerator for IBD
Developing
- Model driven development of EGL code
- Generating source code from UML models
  You can use transformations to create source code from a UML model. First you must create a transformation parameters file and then apply those parameters to a model.
- Generating the EGL Dependency Graph from EGL projects
- Generating Source Code from OpenAPI Documents
- Developing EGL applications
  Enterprise Generation Language (EGL) is a programming language that you can use to focus on business problems instead of software technologies. Within the Rational® development environment, you can use EGL wizards and other tools to write complex applications with minimal effort.
  - How to use this documentation
  - Additional information about EGL
    The most recent EGL documentation is in the IBM Business Developer documentation.
  - EGL Programmer's Guide
    The EGL Programmer's Guide covers using EGL within the Eclipse Integrated Development Environment (IDE), as well as some of the common programming tasks that EGL developers perform.
  - EGL Generation Guide
    The EGL Generation Guide covers the process of converting EGL code to Java™ or COBOL source code, including the processes and the files involved. This section is intended for a developer who will generate or deploy EGL applications.
  - EGL Language Reference
    The EGL Language Reference covers the fundamental use of the language, including its concepts, syntax, and keywords. This volume is intended for a developer writing EGL applications with some experience in procedural programming.
    - General syntax
    - System data parts
    - User-defined data parts
    - Logic parts
    - Correspondence between a JSON string and an EGL variable
      This topic describes the EGL record that corresponds to a JavaScript™ Object Notation (JSON) string. Other topics describe the functions (serviceLib.convertFromJSON() and serviceLib.convertToJSON()) that are used by a Rich UI developer to convert JSON data to or from a variable, as may be necessary to access a third-party REST service. A failure in either function causes a RuntimeException.
    - Correspondence between a JSON string and an EGL variable for zOS and IBM i
      This topic describes the EGL record that corresponds to a JavaScript Object Notation (JSON) string. This topic describes the functions—serviceLib.convertFromJSON() and serviceLib.convertToJSON()—that are used by an EGL developer to convert JSON data to or from a variable either for zOS or IBM i systems. A failure in either function causes a RuntimeException.
    - Special considerations for JSON support on IBM i:
    - Correspondence between an XML string and an EGL variable
      This topic describes the EGL record that corresponds to an Extensible Markup Language (XML) string. Other topics describe the functions (serviceLib.convertFromXML and serviceLib.convertToXML) that are used by a Rich UI developer to convert XML data to or from a variable, as may be necessary to access a third-party REST service.
    - EGL statements
    - EGL core system libraries and variables
    - Accessing data in EGL
      Whenever you access a data store in EGL, the data goes into a record.
    - Applications with user interfaces
    - VisualAge® Generator compatibility
    - Appendices
    - Importing product-supplied projects
      You can click a link to download the current version of Rich UI projects. The capability is useful if you deleted a project or want a clean version.
  - Rational® COBOL Runtime Guide for zSeries®
    This manual provides information about customizing and administering the IBM® Rational® COBOL Runtime.
  - IBM Business Developer EGL Server Guide for IBM® i
    This manual provides information about customizing and administering EGL Server for IBM® i on the host.
  - Generation for VSE Feature Reference
    This reference manual provides z/VSE-specific information about developing and generating EGL programs in the VSE environment.
- Source code analysis with code review
  With code review, you can create configurations of coding rules for EGL source code. You can then run the configurations to check the source code for consistency with the rules.
- Responsive Design Support in IBD
  What is Responsive Design? Responsive design is an approach for creation of web pages that automatically scales its content and elements to match the screen size on which it is viewed. So, instead of designing multiple websites for different devices with variable screen sizes, we can design just one website that scales up or down automatically, to match the device it’s being viewed on.
- Containerizing an EGL RUI Application
Samples
Troubleshooting and support
EGL runtime error messages
Reference
Glossary
Using the help
Notices for IBM Business Developer documentation

Record and file type cross-reference

The next table shows the association of record type and file type, by target platform.

Table 1. File type for each specified record type and for print output
Platform	File type
Platform	Indexed record	WebSphere® MQ record	Relative record	Serial record	Print output
AIX®	ibmcobol	mq	ibmcobol	ibmcobol, seqws*	seqws*, spool
CICS® for z/OS®	vsam	mq	tempmain, tempaux, vsam*	spool, tempmain, tempaux, transient, vsam*	transient*, spool
EGL debug	ibmcobol**	mq	ibmcobol**	ibmcobol*, seqws	seqws*, spool
HP-UX	Not supported	mq	Not supported	seqws	seqws*, spool
IMS™ BMP	vsam, vsamrs*	mq	vsam, vsamrs*	gsam, mmsgq, seq, seqrs*, smsgq, vsam, vsamrs	gsam , seq, seqrs*, smsgq
IMS/VS	n/a	mq	n/a	mmsgq, smsgq*	smsgq
iSeries® COBOL	vsam	mq	vsam	vsam, seq*	seq*, spool
iSeries® Java™	Not supported	mq	Not supported	seqws	seqws
Linux™ (Intel™ hardware)	Not supported	mq	Not supported	seqws	seqws*, spool
Linux™ (zSeries® hardware)	Not supported	mq	Not supported	seqws	seqws*, spool
Solaris	Not supported	mq	Not supported	seqws	seqws*, spool
Windows™ 2000, Windows NT™	ibmcobol	mq	ibmcobol	ibmcobol, seqws*	seqws*, spool
z/OS® batch	vsam, vsamrs*	mq	vsam, vsamrs*	gsam, seq, seqrs*, vsam, vsamrs	gsam, seq, seqrs*
z/OS® UNIX™ System Services	Not supported	mq	Not supported	seqws	seqws*, spool
*default file type
** The EGL debugger supports ibmcobol on Windows™ or for Java™ code generated for Windows™ to provide access to remote VSAM files located on z/OS®. Java™ code generated for AIX® also supports ibmcobol to provide access to local files. The EGL debugger does not support ibmcobol on Linux™ or for Java™ code generated for any runtime environment other than Windows™ or AIX®.