class loading ...

hello,

i haven't found a way to load dynamically a jdbc3 driver.

for basic driver i use :
    Class.forName( "org.postgresql.Driver" ) ;
    Connection con = DriverManager.getConnection( url , login , pwd ) ;
    ...

but with Jdbc3PoolingDateSource it doesn't work. i tried :
    Class.forName( "org.postgresql.Driver" ) ;
    Jdbc3PoolingDateSource source = new Jdbc3PoolingDateSource() ;
    ...
or :
    Class.forName( "org.postgresql.jdbc3.Jdbc3PoolingDateSource" ) ;
    Jdbc3PoolingDateSource source = new Jdbc3PoolingDateSource() ;
    ...
but it doesn't work. to make it i have to specify :
    org.postgresql.jdbc3.Jdbc3PoolingDateSource source =
        new org.postgresql.jdbc3.Jdbc3PoolingDateSource() ;
    ...

but it not dynamically loaded.

thanks, paul.