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From "Vignesh Swaminathan" <vswam...@cordys.com>
Subject RE: How to get table info from DynaBeans in Iterator returned in query() or fetch()?
Date Wed, 22 Feb 2006 04:21:01 GMT
Tom

Thanks for the info, I figured that out when I was going through the
code. It is a pity as I am using PostgreSQL :(

Thanks again

<vignesh/>
"Winning solutions find the right balance between market needs and
technical needs"


-----Original Message-----
From: Thomas Dudziak [mailto:tomdzk@gmail.com] 
Sent: Tuesday, February 21, 2006 3:37 PM
To: ddlutils-user@db.apache.org
Subject: Re: How to get table info from DynaBeans in Iterator returned
in query() or fetch()?


On 2/21/06, Vignesh Swaminathan <vswamina@cordys.com> wrote:

> I want to use the Platform.query() method and then get table info
> (SqlDynaClass) from the dynabean contained in the returned Iterator. 
> Is this possible? If yes, how do it do it?
>
> Currently I get a ClassCastException if I try to cast SqlDynaBean for 
> DynaBean returned and also an exception is thrown when I try
> Database.getDynaClassFor(DynaBean)

Depending on the database you're working against, DdlUtils may not be
able to determine the table from the result set alone. E.g. PostgreSQL
does not provide enough info for this. This is why there are variants of
the fetch/query methods where you gan give table hints to DdlUtils. Only
if DdlUtils can resolve the table(s) and column(s) in the result, set, a
SqlDynaClass/SqlDynaBean is used, otherwise it is a plain DynaBean.

Tom

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