topic Re: encapsulation in Application Development and Automation Discussions

encapsulation

Former Member — Wed, 27 Jun 2007 07:35:48 GMT

can any some detailed information,faq's regarding only encapsulation,abstraction,not other than that.I will be very thankful to those who have done it.

Re: encapsulation

Former Member — Wed, 27 Jun 2007 08:29:27 GMT

This sap help link will be very useful to understand basic ABAP object concepts.

http://help.sap.com/saphelp_46c/helpdata/en/d3/2e974d35c511d1829f0000e829fbfe/frameset.htm

Re: encapsulation

Former Member — Wed, 27 Jun 2007 09:02:41 GMT

Hi,

Check with the below link:

/people/ravikumar.allampallam/blog/2005/02/11/abap-oo-in-action

Regards

Sayee

Re: encapsulation

Former Member — Wed, 27 Jun 2007 12:22:36 GMT

Hi Sandeep,

Defining attributes of a class in the private visibility section is called “Information Hiding” or Encapsulation.

Advantage

If the attributes are defined as public, the risk would be too large since a user might forget to supply value to attribute or specify an inconsistent value to an attribute.

So the attributes are defined as private so that user cannot directly access them but through methods which are defined in the public section. A strict syntax check governs method calls to check that all obligatory parameters are transferred. Methods can also perform a consistency check and raise an exception if an error occurs.

Disadvantage

Assigning values to attributes through methods instead of direct assignment

(for public attributes) require slightly more runtime.

Award points if found useful.

Regards

Indrajit