How to Call abap functn/program from java layer

Hi all,
I have to develop a program which has to call abap function/program from java side or how to call a abap program through java ..
pls send me related links or explanations.. dont send unrelated answers..
Regards,
Arivarasu S

Hi,
You mean accessing ABAP functions from J2EE perspective, then I think we can do this by using SAP Java Resource Adapter and also through webservices.
SAP Java Resource Adapter (SAP JRA) can be used as an add-on for the SAP JCo SAP JRA enables the implementation of standard interfaces from diverse J2EE servers to the SAP JCo in the SAP Web AS. The SAP JRA thus simplifies
communication with ABAP within heterogeneous J2EE landscapes.
Go through the following links which has Good documentation on how to achieve this
Accessing BAPIs Using the SAP Java Resource Adapter
[https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/ad09cd07-0a01-0010-93a9-933e247d3ba4]
Connectivity and Interoperability
[https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/326d82e5-0601-0010-fca4-9caf27b89c26]
Finally with WebServices. Accessing SAP Business Functions (ABAP) via Web Services
[https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/06adbf03-0a01-0010-f386-d8e45561a3c4]
Regards
Raghu

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