Simple Java Bean Generator use

Hello everybody,
I'd like to know if someone managed to use the Simple Java Bean Generator, useful tool for web dynpro application in order to import complete database model.
I read the doc, and I think it's usable for SQLServer database. My command is as follows :
java -D com.sap.test.DBTest com.microsoft.jdbc.sqlserver.SQLServerDriver sa 123erty TSP c:\GenerateDB CONFIG
where CONFIG is my database name, sa/123erty the couple login/pwd, and TSP the pattern (what does it mean pattern in this case ?).
When executing this command, the response is : datasouce not found and driver not specified...
I don't understand, can someone help me please ??
Thanx.
Message was edited by: Sistiaga Marc

Thanks about your answer.
Without code modifying I wan't to use it with a Maxdb database.
Which driver is ucurrently used ? com.sap.dbtech.jdbc.DriverSapDB ?
Where do i have to launch this script knowing that my J2EE engine is installed in a linux platform ?
My command become :
java -D com.sap.test.DBTest com.sap.dbtech.jdbc.DriverSapDB SAPNW1DB SAPNW1DB CC_ c:\GenerateDB CONFIG_DB
and i always get the response : datasource not found,n driver not specified...
Am I wrong to try this generator in a windows platform where j2ee engine is in a linux platform ??
Thanx a lot in advance !

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