AW: JCA on Web server

Hi Lim,

1) The JCO is not conform to JCA standards as it doesnt use a common lient interface to access the ERP but directlcy access SAP via RFC . Also JCo is a bi-direktional interface whereas the current JCA standards only allows uni-directional interfaces .

2) yes it does need a J2EE server to faciliatate services like system management, clustering, security etc. I think the only chance you can do it without is directly calling the RFC although Im not sure about the performance impacts and the scalibility.
if your application is not only JSPs but also java it would work with JCo

3) Regarding JcO have a look at the SAP pages . Also look at the SAP WebAS page for more infos
http://help.sap.com/saphelp_webas620sp9/helpdata/en/e1/8e51341a06084de10000009b38f83b/frameset.htm
you can donwload the connector az service.sap.com/connectors but you need authorization for that.
http://www.sap.com/australia/teched/tuesday/HO3Fewster.pdf is also an interesting intro.


I hope that helps,

Iris Peters
EAI Architect
SPM technologies Germany Berlin

-----Ursprüngliche Nachricht-----
Von: Lim Huat Heng [mailto:[email protected]]
Gesendet: Dienstag, 18. März 2003 09:38
An: [email protected]
Betreff: JCA on Web server


To anyone who may advice:
    I am currently evaluating the feasibility of integration between a web- based application (written in JSP and running on Jakarta Tomcat) and SAP system, in which, I will only want to 'download' data from SAP.
    I have searched in the Internet and found that there are few architectures that could help me in achieving the objective. However, I am confused and would like anyone who may advice to clear my following doubts:
1) What is the differences between J2EE Connector Architecture (JCA) and SAP Java Connector (JCO)?
2) Does J2EE Connector Architecture really need to be implemented on an application server? In order words, can I achieve the above objective by using JCA but still running the system on web- server (particularly Jakarta- Tomcat)
3) What is the best practice to develop such a system (to achieve the above objective)?
4) Any good examples/ references (including source code/ demo page) that I could refer to?
     Thanks.

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