ABAP Object Services

[Former Member]

Hallo Friends,

It would be nice if some one let me know, what ABAP Object Services is ??

Is it something related to ABAP Object ---> Database mapping !?

It would be very nice if some one point out any good resource in this regard, !!

Many thanks!

Haider Syed

[Former Member]

From the Help documentation:

Object Services represent a software layer, programmed in ABAP Objects, between the ABAP application program and the ABAP runtime environment. This layer helps you manage objects in the application program.

I believe it is mainly used with Persistant Objects, i.e. Objects that can be stored in the database.

Help is available at

http://help.sap.com/saphelp_47x200/helpdata/en/ab/9d0a3ad259cd58e10000000a11402f/frameset.htm

[Former Member]

hi

Is it something like object - Relational mapping ?

I have went through to this documentation, would be great if some one share, other document then (SAP Library).

Many thanks!

Haider Syed

[Former Member]

It's new for me as far as I use 4.6c. After short investigation of the docu I could say - yes, this is what the OO programmers expect from object-relational mapping to do. And for me the documentation, mentioned by Charles, is quite helpfull - even mapping is described there. I didn't met such terms as 'setter' & 'getter', which describe how an attribute of an object is set/get, however.

I would suggest to try it, if possible.

As for me - as a OO fan (smalltalker), I must force my bosses to switch to 4.7 or to switch to another company (which is more likely) with 4.7, in order to work with this, which I want

Regards,

Ivaylo

[Former Member]

Hi

Is Persistence services is somethig like "Hilbernate" in java ??

Any comments !

Haider Syed

[Former Member]

Persistence Services is simply the ability to save an Object in the database and then retrieve the object from the database. The attributes of an object are saved in a database table that you designate. You can use an existing table or create a new table to meet your needs. You are forced to decide what the keys of an object are so that you can create a unique entry in a database table.

This is a 4.7 feature. It is not available in 4.6C.

[Peter_Inotai]

Check this cool weblog:

/people/thomas.jung3/blog/2004/12/08/abap-persistent-classes-coding-without-sql

Peter

[Former Member]

Really cool!

Question:

Where to find a documentation how to build classes in SAP - beside build-in help, which is not enough, I didn't found info how to use class builder and what (for example) is the meaning of different class categories, etc.

Reference to any book, SAP-cource, white paper, etc. whould be highly appreciated.

All these for 4.6c.

I'm at the begining of a little project and really like to try persistence mapping in SAP as much as possible, as far as I have 6 years experience in object persisntence, and am missing it a lot in SAP.

Regards,

Ivaylo