About JAVA & ABAP

[Former Member]

Hello Friends,

Iam a ABAP programmer ,

Can U Plz suggest me to which concepts it is related with JAVA .

I have a theoritical knowledge on core Java and a bit in servlets , JSP and JDBC .

Can U Plz help me about on which concepts do I have to focus..

Thanks in advance.

Regards,

PAVAN

[Former Member · Accepted solution]

Hi,

You will need to focus on ejbs , web services, jsp and servlets,jdbc,java connector architecture(and specifically jco and sap connector framework),BI SDK ,htmlb and webdynpro.

Refer to the below links:

http://help.sap.com/saphelp_nw04s/helpdata/en/3e/b1a5420aa7b111e10000000a155106/frameset.htm

Refer to the link below for understanding the difference in java and abap

http://help.sap.com/saphelp_nw04s/helpdata/en/42/c06f42ca95dc54e10000000a155106/frameset.htm

You will need to clearly understand was architecture.

For this understand also what j2ee is all about.

This links should be of help.

http://www.javaworld.com/javaworld/jw-09-2001/jw-0928-rup.html

You can also refer to the link below to understand <b>WAS java</b> architecture

http://help.sap.com/saphelp_nw04s/helpdata/en/e1/b5443e02a9ab4186a6e1240a9a2455/frameset.htm

Regards,

Harish

(Please award points for helpful answers)

Message was edited by: HARISH SUBRAMANIAN

[Former Member]

Hi pavan,

As u might be knowing, JAVA is OO language..

Java bcoz of its global presence has been incorporated in SAP..

If u know basic concepts of java, u would be able to connect to R/3 using web interface..

You can also be in a position to use JCO..

I have some documents which i shall forwars to you..

Please let me know ur email id..

Regards,

Tanveer.

Please mark helpful answers.

[Former Member]

Hi

Is ABAP follows Java concepts like OOPS.

Thanks

Gopinath

[Former Member]

Hi pavan,

As you know that sap has 2 stacks...

1. ABAP Stacks.

2. JAVA Stacks.

SAP Introduces JAVA Stack So that even the java developers can also use sap for development purpose.

For this you have to use SAP-NetWeaver Tool. Study, how to work with sap NetWeaver.

Refer the link

http://www.henrikfrank.dk/abapexamples/Java/executing_a_javaprogram.htm

Try this link. This is a suberb book.

http://www.sap-press.com/product.cfm?account=&product=H965

http://www.sap-press.de/katalog/buecher/inhaltsverzeichnis/gp/titelID-656

FAQ on JCO

http://www.sapgenie.com/faq/jco.htm

Step by step procedure for creating a BAPI and connecting it using a Java servlet.

(Make sure you go throu' this).

http://www.sapgenie.com/sapgenie/docs/BAPI%20JCO.pdf

As the pdf illustrates that you have to some thing in both java side and in abap side for communicating sap and java.

BAPI CompanyCode_GetList to retrieve a list of company codes from SAP

http://www.henrikfrank.dk/abapexamples/Java/sapjava_getcompanycode_list.htm

About JCO

http://snvworld.net/StartPage/documents/integration/3.html

SAP NetWeaver

An Overview of the New SAP Concept

http://www.jax-magazine.com/itr/online_artikel/psecom,id,586,nodeid,147.html

Hope it Helps.

Thanks & Regards,

Vishal

[Former Member]

Hi,

you need knowledge on the following topics:

- j2ee (ejb's), make sure you also look at info provided by sap because there are some little differences between the sap way and the standard way with regard to the deployemnt descriptors for example

- persistence : the different ways to store and retrieve data in the db

- open integration technologies : web services, connectors, etc.

also usefull are :

- web dynpro

- portals

- jdi

hope this helps

greetz

Christophe

[Former Member]

hi

for sap related java you must learn

enterprise java beans, java connector, jsp, servelet,

java messaging and jndi

sap javastack mainly uses enterprise javabeans.

mian feilds where java is used are web dynpro XI adapters

connectors etc.

in my opinion you must focus on enterprise java beans most and messaging

get started with netweaver developer studio by sap

regards