What is possible through Java ?

Hello all,

I have been in SAP for only 2 months and now I must find a way to connect to SAP through Java and extract data from reports.

I checked the SAP JCo wich seems to be a good way to do this but apparently I must use BAPIs or at least Functions.

The problem is : my client does not want me to use Functions. So I must launch a transaction through Java and get the results back "by hand".

Is this possible ? Or are the BAPIs or the RFCs essential ?

Thanks in advance for your help.

Regards.

Greg.