Hi All,

I am new to Middlegen and Hibernate. When I run Middlegen, I am getting the following error. I could run the target createdb, but not middlegen. Please help.

[b]Full stack trace of any exception that occurs:[/b]
middlegen.MiddlegenEx
ception: Middlegen successfully connected to the database, but couldn't find any
tables. Perhaps the specified schema or catalog is wrong? -Or maybe there aren'
t any tables in the database at all?

[b]Name and version of the database you are using:[/b]
Oracle 9i

Thanks in advance
Renga.

It is likely to be either the setup for the JDBC driver or maybe the driver itself.
Things to try:
1) Recheck your configuration.
2) Remove entry configuration paramaters for the driver, eg, Catelog (if your not using it).
3) Check that the driver can get the database Meta data, try another application, write a small program etc.
4) Check the bugs list for the driver.
5) Check the class path to make sure you don't have multiple drivers on the path.

etc..

It is a hard one to remotely solve.

David,

Thanks for your reply.
I am using the following parameters. I don't have any problem when I connect to this DB from my java application. Is there any way we can see the exception trace. This will atleast give me an idea of what is causing the exception.

Thanks in advance
Booshan.


<middlegen
appname="airline"
prefsdir="${src.dir}"
gui="false"
databaseurl="jdbc:oracle:thin:@aotsditaticketdb.bcs.abc.com:1521:ARSyst
em"
driver="oracle.jdbc.driver.OracleDriver"
username="ts"
password="ts123"
schema="ARSystem"
>

Its a ghost exception in that Middlegen cannot get the Meta data about the tables so its stating there is a problem. Likely a JDBC setup issue.

Write a small program using direct JDBC and query the table meta data. See which JDBC configuration it works on. Then use that same setup when running Middlegen.