Problems fetching data when passing AS400 object to Connection.connect()

My application requires a System connection (for accessing data queues..etc.) as well as Database connection. The user has to login once. This is to make the AS400 object. This object is passed into the Connection class.

  com.ibm.as400.access.AS400JDBCDriver d = new com.ibm.as400.access.AS400JDBCDriver();
  com.ibm.as400.access.AS400 x = new     com.ibm.as400.access.AS400   ("myserver",userID,passWord);
   x.setGuiAvailable(false);
 Connection c = d.connect (x);

Now to fetch using SQL with this connection I need to build my SQL in the following way -
        "select * from mylibrary.filename  ( I need to give the library name, although Library list for QUSER and the user's JOBD is set to - mylibrary )

Whereas if I have the connection in the following way -

        Connection c=  DriverManager.getConnection"jdbc:as400://myserver/mylibrary","username","password")

Then I can write my SQL statements in the following way -
        "Select * from filename. ( Here I do not need to give the library name)

Can anyone suggest a way by which I can avoid giving library name in  SQL statements in the first case (i.e. Connection c=d.connect(x) ?

Thanx

Cheers

Vijosh