HP 3000 Manuals HP 3000 Manuals
Chapter 8 Learning to Use the Module Builder The HP ALLBASE/4GL module builder allows you to create a working application module very quickly. The module consists of all the application items required to review or update a file. Application items are individual components of the application or module, such as screens, logic blocks, field specifications, and messages. All the module's application items revolve around a main file and a single screen. Once you have specified the main file, the associated record layout, and the module type (inquiry or maintenance), the module builder automatically creates the resultant screen and logic required to perform maintenance or inquiry tasks on the main file. When using the module builder, you do not need to create the items individually. That is, you do not need to paint the data screen and complete the field details screen, nor do you need to create any logic blocks, messages or any other application items. All this is performed by the module builder. The module builder also allows you to link data entered into a field in the resultant screen with existing data in a secondary file. You can use the link feature to validate the entered data with data in a secondary file or to display data from a single record in a secondary file on the resultant screen. Once the module is built, you can modify the messages, screens and other items built by HP ALLBASE/4GL just as you modify the parts of the application that you create yourself.