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Function documentation Enhancements for Web Interfaces  Locate the document in its SAP Library structure

Use

When you create a Web interface using the Web Interface Builder, the system generates a BSP page in accordance with the settings in Customizing. The BSP event handlers for the OnInitialisation and OnInputprocessing events are implemented in ABAP class CL_UPWB_BSP_APPL. You can modify the standard system behavior or add new functions.

Prerequisites

You have derived a customer-defined subclass from class CL_UPWB_BSP_APPL.

Features

You can modify the following methods of class CL_UPWB_BSP_APPL.

Methods of class CL_UPWB_BSP_APPL that can be redefined

Technical Name

Description

LOAD

This method allows you to add tasks that are executed once only when the initial execution is performed. This method allows you to access all the components related to a Web interface.

Example: Setting a layout in display mode.

DISPATCH 

This method forwards the individual events for a component.

It is called at least once for each component related to a Web interface. It is called once for each task of the higher-level processes (initialization or input processing, for example).

INITIALIZATION 

This method is called for the Initialization event of a BSP page.

INPUTPROCESSING 

This method is called for the Process After Input (PAI) event of a BSP page.

FILTER_MESSAGES

This method allows you to filter or change messages.

Example: Displaying either warnings or error messages only.

 

 

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