How to override an abstract method returning an interface type

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etantonio@gmail.com - 06 Jul 2006 13:35 GMT

Ciao,
I've this class that implements the interface PreparedStatement

public class SCTRDebuggableStatement implements PreparedStatement
{ .... }

but I've not implemented the abstract method ParameterMetaData so
defined in PreparedStatement

ParameterMetaData getParameterMetaData() throws SQLException;

Also ParameterMetaData is an interface, all that I need is to compile a
very big project, I'm not interested to these classes but how can I
modify SCTRDebuggableStatement to finally see it compile without
errors...

many thanks if you can help me

Antonio D'Ottavio
www.etantonio.it/en

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Matt Humphrey - 06 Jul 2006 15:33 GMT

> Ciao,
> I've this class that implements the interface PreparedStatement
[quoted text clipped - 11 lines]
> modify SCTRDebuggableStatement to finally see it compile without
> errors...

If all you're trying to do is to reach a compilable state, simply have the
method throw an exception that says "Not implemented".

throw new UnsupportedOperationException ("Not implemented.");

You don't have to declare this kind of exception.

Cheers,
Matt Humphrey matth@ivizNOSPAM.com http://www.iviz.com/

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vahan - 07 Jul 2006 05:44 GMT

I'm agree with Matt, you have to write in your subclass:

ParameterMetaData getParameterMetaData() throws SQLException {
throw new UnsupportedOperationException ("Not implemented.");
}

> > Ciao,
> > I've this class that implements the interface PreparedStatement
[quoted text clipped - 21 lines]
> Cheers,
> Matt Humphrey matth@ivizNOSPAM.com http://www.iviz.com/

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How to override an abstract method returning an interface type

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