commons-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Steven Caswell" <ste...@caswell.name>
Subject RE: [dbutils] propose adding getResultSetMetaData to DbUtils.ResultSetHandler
Date Mon, 10 Mar 2003 21:32:31 GMT
So is there an alterative proposal floating around out there?


Steven Caswell
steven@caswell.name
a.k.a Mungo Knotwise of Michel Delving
"One ring to rule them all, one ring to find them..."


> -----Original Message-----
> From: Juozas Baliuka [mailto:baliuka@centras.lt] 
> Sent: Monday, March 10, 2003 1:05 AM
> To: steven@caswell.name; 'Jakarta Commons Developers List'
> Subject: Re: [dbutils] propose adding getResultSetMetaData to 
> DbUtils.ResultSetHandler
> 
> 
> 
> I do not likemore than one method in callback interface and 
> RSMD is invalidated after close (possible it is not true on 
> some driver implementation). It is usefull to have RSMD after 
> "handle", but I prefer to find some better solution to retrieve it.
> 
> ----- Original Message -----
> From: "Steven Caswell" <steven@caswell.name>
> To: "'Juozas Baliuka'" <baliuka@centras.lt>; "'Jakarta 
> Commons Developers List'" <commons-dev@jakarta.apache.org>
> Sent: Monday, March 10, 2003 1:51 AM
> Subject: RE: [dbutils] propose adding getResultSetMetaData to 
> DbUtils.ResultSetHandler
> 
> 
> But that would be up to the class implementing 
> ResultSetHandler. Having the operation in the interface would 
> simply allow a caller to get an instance of some 
> ResultSetMetaData, however the implementing class handler 
> choses to provide it. In the test I wrote, I had the 
> implementing class grab the RSMD instance from the RS as the 
> first thing done in the handle method, and the instance of 
> RSMD returned by the RS was intact after the RS was closed.
> 
> 
> Steven Caswell
> steven@caswell.name
> a.k.a Mungo Knotwise of Michel Delving
> "One ring to rule them all, one ring to find them..."
> 
> 
> > -----Original Message-----
> > From: Juozas Baliuka [mailto:baliuka@centras.lt]
> > Sent: Sunday, March 09, 2003 5:25 PM
> > To: Jakarta Commons Developers List; steven@caswell.name
> > Subject: Re: [dbutils] propose adding getResultSetMetaData to 
> > DbUtils.ResultSetHandler
> >
> >
> > I am not sure it will work on closed resultsetm, It is better to 
> > return custom metadata object and value as result from 
> handler. I have 
> > changed "handle" signature it will have "params" from prepared 
> > statement.
> >
> > ----- Original Message -----
> > From: "Steven Caswell" <steven@caswell.name>
> > To: "Jakarta Commons Developers List" 
> <commons-dev@jakarta.apache.org>
> > Sent: Sunday, March 09, 2003 7:07 PM
> > Subject: [dbutils] propose adding getResultSetMetaData to 
> > DbUtils.ResultSetHandler
> >
> >
> > As the subject says, I'd like to modify DbUtils.ResultSetHandler to 
> > add a getResultSetMetaData operation. This would provide a 
> callback to 
> > allow an application using DbUtils.execute to get the column
> > descriptions from the handler. Proposed signature:
> >
> > public ResultSetMetaData getResultSetMetaData();
> >
> >
> > Steven Caswell
> > steven@caswell.name
> > "In our own native land, in defense of the freedom that is our 
> > birthright, and which we ever enjoyed till the late 
> violation of it -- 
> > for the protection of our property, acquired solely by the honest 
> > industry of our fore-fathers and ourselves, against 
> violence actually 
> > offered, we have taken up arms. We shall lay them down when 
> > hostilities shall cease on the part of the aggressors, and 
> all danger 
> > of their being renewed shall be removed, and not before." - Thomas 
> > Jefferson
> >
> >
> >
> >
> >
> >
> 
> 
> 



---------------------------------------------------------------------
To unsubscribe, e-mail: commons-dev-unsubscribe@jakarta.apache.org
For additional commands, e-mail: commons-dev-help@jakarta.apache.org


Mime
View raw message