SAP has introduced a new programming model to devleop Object Oriented ALV (OO ALV) using class CL_SALV family class. This class family is avaliable in the SAP Netweaver 04. Some Background: Prior to SAP Netweaver, we have so many different starting point to start the ALV. The starting point entirly depends of the flavour of [...]

Today we will try to explore the design patterns in the ABAP Objects. We will start with the Singleton design pattern, which is the simplest of its family of design patterns. UPDATE:This blog post has been updated with clear example demo on 12/17/2009. So, there could be some comments which would be obsolete. What is [...]

Sometimes, it is necessary to send emails with the Formatting when we are sending the email using SAPConnect. Formatting is necessary to display proper information. For example, Information is formatted repesentation of the Data. If no formatting, no information. Same way, if we send the unformatted contents, than it will make wrong impression. In ABAP [...]

When we assign the instance of the Superclass to the Subclass, than it is called the Widening Cast, because we are moving to the “More Specific View” from the “Less specific view”. Everytime it is not possible to move the Superclass reference to the Subclass, because subclass will(or might) have always more functionality compare to [...]

Important principal of the Inheritence is that an instance of the Subclass can be used in all the contexts where the Superclass can be used. This is possible because the Subclass contains all the attributes of the Superclass, because Subclass has been inhertied from the Super. When we assign the instance of the Subclass back [...]