Check out the Iterator design pattern implementation in ABAP Objects – another behavioral design pattern. What is an Iterator ? Iterator design pattern is to provide a way to access the underlying object collection without exposing the underlying representations. Iterator decouples the logic to access the collection of objects out of the Collection object itselft….

Composite allows clients to access individual object and composition objects in uniform way. What is Composite? Clients needs to work with hierarchical collection of objects – both “Primitive” and “Composite” objects. Primitive (individual) objects processing would be handled differently than the Composition of the objects. So, we will compose a tree structure which would contain…

Adapter design pattern, another widely used design pattern in the real world as well as the Object Oriented Programming language. Standard SAP developments build in OO ABAP also uses Adapter DP a lot. What is Adapter Adapter converts the objects which are incompatible due to the difference in the “Interface”. By implementing Adapter, we can…

We all know that we can’t redefine Static Method. We’ll try to explore the reasoning and alternatives to achieve the similar behavior.

In any Object Oriented programming language, the access to private or protected components – both methods and attributes – would be prohibited. If someone try to access them, compiler would generate syntax error. Sometimes, it would be advantageous to give the access to these protected and private attributes to other classes. This can be achieved…

READ-ONLY is something different for the people who have worked on the OOP in the past. Like JAVA doesn’t have the read only addition. So, there is a hot discussion going on in SAP ABAP Objects world, why READ-ONLY is there and what is the purpose of it. Let’s unleash the READ-ONLY (and its power…