In the previous post, you have seen how to implement Iterator design Pattern. It also raised the question about the usefulness in ABAP as in ABAP, you have Internal Tables. The ITAB can handle all type of collection of objects easily. So, lets try to go away from ITAB usage for this post to see…

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…

Lets check out one of the simple and most used Design Patterns in Object oriented programming – Facade or Façade (Pronounce as /fəˈsɑːd/) in ABAP.

Abstract Pattern provides an interface for creating families of related or dependent objects without specifying their concrete classes. Inherited subclasses of the abstract super class would know which of the objects are required. Concept Before jumping into the demo, lets see the concept. This will help us to better understand how Abstract Factory can be…