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 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.
Overview of EGL Rich UI
Introduction to the EGL Rich UI editor
You can use the EGL Rich UI editor to modify a Rich UI handler and to preview the handler's runtime behavior.
Running a web application in the EGL Rich UI editor

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.
    - Introduction
      These topics explain the fundamentals of using EGL in the Eclipse IDE, as well as changes to the EGL language and IDE in this version.
    - Contents of an EGL application
      EGL applications contain projects, packages, folders, and files.
    - Properties
      Properties set specific options for parts. In general, you specify the properties when you create the part and then the properties are static. In certain circumstances, however, it is possible to change a property dynamically.
    - Annotating EGL Applications
      EGL developers can annotate their applications to indicate the version, authors as well as a general description.
    - Import and use statements
      Use the EGL import and use statements to expand the visibility of code elements.
    - Working with EGL code
    - Accessing data with EGL code
    - Transfer of control across programs
    - Developing segmented programs in EGL
      Different runtime environments have different considerations for developing segmented programs.
    - Developing EGL programs for the IMS™ environment
    - Developing EGL programs for the CICS® environment
      There are specific design and development considerations when creating EGL programs for CICS® for z/OS® and CICS for VSE.
    - Developing EGL programs for the VSE environment
      IBM Business Developer provides a Generation for VSE feature that you can use to generate EGL as COBOL source for the z/VSE® environment.
    - Developing programs for iSeriesC
      You can deploy EGL-generated COBOL programs targeted for the IBM® i environment.
    - Overview of EGL Logging for Java Application
    - Overview of EGL Rich UI
      - Starting to work with EGL Rich UI
        This topic tells how to start developing applications with EGL Rich UI.
      - Understanding how browsers handle a Rich UI application
      - Overview of EGL Logging for RichUI Application
      - Developing with the EGL Dojo widgets
        The EGL Dojo widget library represents a set of commonly used widgets that extend the Rich UI widget library. These widgets are available on the palette in the EGL Rich UI editor and can be used with the EGL widgets or your own custom widgets.
      - Developing with the EGL Dojo mobile widgets
        The EGL Dojo widget library represents a set of commonly used Dojox or mobile widgets that extend the Rich UI widget library. These widgets are available on the palette in the EGL Rich UI editor and can be used with the EGL Rich UI widgets or your own custom widgets.
      - Developing with the EGL Cordova library
        The EGL Cordova library is a set of RUI libraries and externalType parts to be used by EGL RUI projects. It allows the EGL mobile program to use the native mobile artifacts by leveraging Apache Cordova.
      - Introduction to the EGL Rich UI editor
        You can use the EGL Rich UI editor to modify a Rich UI handler and to preview the handler's runtime behavior.
        Opening the EGL Rich UI editor
        Creating a web interface in the Rich UI editor
        This topic describes how to add, select, move, and delete widgets in the EGL Rich UI editor. In each case, you work on the Design surface, which you access by clicking on the Design tab.
        Running a web application in the EGL Rich UI editor
        Creating widgets by dragging data onto the Rich UI editor
        You can drag a variable from the EGL Data view to the Design surface of the EGL Rich UI editor. The purpose is to place widgets that will hold business data. You can also add controllers and a form manager. For details on controllers, see Rich UI validation and formatting. For details on form managers, see Form processing with Rich UI.
        Setting preferences for Rich UI
        Creating a new EGL widget type with the Rich UI editor
        This task creates a new Rich UI widget type. To create a new external-type widget, do not use this process, but create a new external type of type JavaScriptObject. For details on coding either kind of widget type, see Extending the Rich UI widget set.
      - Securing a Rich UI application
    - Services: a top-level overview
      The topics in this section describe service-oriented architecture (SOA) and related technologies, EGL support for SOA, and service-related procedures, with an emphasis on service access. For details about deployment, see “Introduction to EGL generation and deployment” and “Add web-service deployment entries in the EGL deployment descriptor.”
    - 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.
    - Building EGL Text User Interface applications
      A Text UI application presents a text-based user interface similar to that of a 5250 or 3270 terminal.
    - Creating reports with EGL
      EGL offers different ways to create reports, using external engines to generate the report contents.
    - Working with web transaction applications in EGL
    - Debugging EGL applications
    - EGL Unit Testing
    - z/OS Connect
  - 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.
  - 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

Running a web application in the EGL Rich UI editor

To run an EGL Rich UI application in the EGL Rich UI editor, click the Preview tab. Here is the toolbar:
Toolbar for the EGL Rich UI Preview tab

Toolbar for the EGL Rich UI Preview tab

The tools at the Preview tab provide the following functionality, as indicated by the hover help that is displayed when you move the mouse over a given tool:

At the left is the Debug tool. For details, see “EGL Rich UI debugging.”
Second is the Launch external browser tool. Click it to place the output of the Rich UI application in an external browser as well as in the Preview view. You can select which external browser is invoked by setting a system preference:
1. Click Window -> Preferences.
2. At the Preferences dialog, expand General and click Web Browser.
3. The check boxes Use Internal Web Browser and Use External Web Browser have no effect on Rich UI. However, you can select your external browser by selecting from the list of browsers shown at that dialog and then clicking OK.
The third tool is the Configure preferences tool. Click it to access the preferences that are described in “Setting preferences for Rich UI appearance.”
At the right is the Refresh Web page tool. Click it to rerun a generated web page from the start.