Definicja interface (BC-ABA)

An abstract definition of components for classes that serves as a template for the public interface of classes. Defined using INTERFACE - ENDINTERFACE either globally in an interface pool or locally in another ABAP program. An interface contains the declaration of interface components, but no method implementation. Can be implemented in classes using INTERFACES, hence adding the the interface components to the outer interface. Classes with this type of interface must implement the methods defined in the interface.