Abap Interface program

Former Member — Tue, 27 Nov 2007 07:16:42 GMT

Can any one tell me a short description about Abap interface program also the difference between inbound and outbound interfaces ??

Re: Abap Interface program

former_member188829 — Tue, 27 Nov 2007 07:21:07 GMT

Hi,

Pls go thru this link..

http://www.sapgenie.com/sapgenie/docs/ale_scenario_development_procedure.doc

Re: Abap Interface program

Former Member — Tue, 27 Nov 2007 07:27:20 GMT

Interfaces

Interfaces only describe the external point of contact of a class (protocols), they do not contain any implementation.

Interfaces are usually defined by a user. The user describes in the interface which services (technical and semantic) it needs in order to carry out a task.

The user never actually knows the providers of these services, but communicates with them through the interface.

In this way the user is protected from actual implementations and can work in the same way with different classes/objects, as long as they provide the services required. This is known as polymorphism with interfaces.

Interfaces

In ABAP interfaces are implemented in addition to, and independently of classes. An interface only has a declaration part,

and do not have visibility sections. Components (Attributes, methods, constants, types) can be defined the same way as in classes.

· Interfaces are listed in the definition part lof the class, and must always be in the PUBLIC SECTION.

· Operations defined in the interface atre impemented as methods of the class. All methods of the interface

must be present in the implementation part of the class.

· Attributes, events, constants and types defined in the interface are automatically available to the class

carrying out the implementation.

· Interface components are addressed in the class by display.

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Abap Interface program

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