OnInitialization (SAP Library - Web Applications and Business Server Pages)

OnInitialization

Use

This event handler is processed directly after OnRequest during page processing.

This handler implements data retrieval. The data is stored in page attributes and is therefore accessible in the layout and in the other event handlers.

Integration

While the event handler OnCreate is used to initialize objects needed for entire page, OnInitialization is used for getting data from database tables.

If you develop a BSP for managing a shopping basket, the shopping basket object is initialized using OnCreate and then filled with selected products. Here, this would be the catalog ID and the number of objects. You use OnInitialization to read the short texts from the database, calculate the current subtotal, and so on.

Functions

You can access the following objects in the implementation:

Object	Reference Type	Description
APPLICATION	type ref to application class	Application class refers to the individual application or application class specified in the BSP application. If there is no application class in the BSP application, this means that the object application is not available.
RUNTIME	type ref to IF_BSP_RUNTIME	The runtime object is defined in interface IF_BSP_RUNTIME .
REQUEST	type ref to IF_HTTP_REQUEST	The request object is defined in interface IF_HTTP_REQUEST.
RESPONSE	type ref to IF_HTTP_RESPONSE	The response object is defined in interface IF_HTTP_RESPONSE.
NAVIGATION	type ref to IF_BSP_NAVIGATION	The navigation object is defined in interface IF_BSP_NAVIGATION.
PAGE	type ref to IF_BSP_PAGE	Page object is defined in interface IF_BSP_PAGE.
PAGE_CONTEXT	type ref to IF_BSP_PAGE_CONTEXT	Page context object is defined in interface IF_BSP_PAGE_CONTEXT.

Example

BSPs with Layout, Initialization and Navigation