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IBM Business Developer10
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  2. Welcome
  3. Developing
  4. 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.

  5. 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.

  6. Applications with user interfaces
  7. Validation properties
  • 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
          • Enumerations for user interface properties and fields
          • Common UI statements
          • Common UI properties
          • Validation properties
          • Handler part

            A handler typically includes both variables and functions. It is used for basic processing and for user interaction.

          • Rich UI programming model
          • DojoLib

            The DojoLib library includes constants and validation functions used by the EGL Dojo widgets. The library is not a system library, and its use has prerequisites.

          • DojoMobileLib

            The DojoMobileLib widget defines constants that are used by EGL Dojo mobile widgets.

          • Reference to widgets
          • EGL reports
          • Text UI

            A text UI application presents a text-based user interface similar to that of a 5250 or 3270 terminal.

          • Web transaction support in EGL

            Use EGL web transactions to migrate VisualAge® Generator web transactions to EGL.

        • 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
 Feedback

Validation properties

The validation properties restrict what is accepted when the user enters data in a text form.

The properties are as follows:
  • inputRequired
  • inputRequiredMsgKey
  • minimumInput
  • minimumInputMsgKey
  • needsSOSI
  • validValues
  • validValuesMsgKey
Related concepts
  • Properties
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