SAP BADI ENHANCEMENT documentation, setup help and example usage

ARTICLE

Enhancements Using BAdI s
BAdIs are created in Enhancement Builder as a part of the enhancement concept of ABAP Workbench . These BAdIs , together with their calling points in ABAP programs, form explicit enhancement options of these programs are are assigned to
enhancement spots .
If BAdIs and their calling points are defined in a system, enhancements can be made in follow-on systems by creating BAdI implementations in these systems. A BAdI consists mainly of a BAdI implementation class
whose instances enhance the functions of an ABAP program at runtime in the form of an object plug-in . In the enhancement concept, a BAdI implementation is an enhancement implementation element
and is administrated by enhancement implementations .
A BAdI consists mainly of a
BAdI interface that contains the declaration of BAdI methods , and a set of filters. The filters enable certain BAdI implementations to be selected for use. The following settings can be made in the definition of a BAdI , in addition to the selection of the BAdI interface :

Whether a BAdI is intended for single or multiple use. If a

BAdI is intended for single use, only a single BAdI implementation can be used in one internal session , and one BAdI implementation must be available for each use.

A fallback BAdI implementation class can be specified to be used if no BAdI implementation matches the filter conditions.

A BAdI can be defined as context-free or context-dependent. This setting controls the instantiation of the

object plug-ins . In context-free BAdIs , it is possible to define whether an object plug-in can be generated only once or multiple times within an internal session. For context-dependent BAdIs , the object plug-ins are associated with a context object .
Unlike earlier BAdIs , the new BAdIs are supported directly by the ABAP runtime environment with the following ABAP statements:

GET BADI

Generates a BAdI object as a
handle for object plug-ins .

CALL BADI

Calls BAdI methods in object plug-ins .
The BAdIs of the enhancement concept are also freely switchable using switches from Switch Framework
.

Notes

For a BAdI intended for single use, it is best to always enter a fallback implementation class and to implement it in the same system as the BAdI.

See also Enhancements with BAdIs .

Documentation extract taken from SAP system, � Copyright SAP AG. All rights reserved