Ronn, are you using iBatis in combination with the
Spring framework? I'm currently doing that
successfully whilst still using the 9i drivers. Just
now I tested the insertion of three clobs of over 32k
characters and didn't see any reordering or
exceptions.
Geoff
--- Ronn <[EMAIL PROTECTED]> wrote:
> Hi,
>
> I am trying to insert clobs into Oracle 9i with
> Oracle 10g JDBC drivers.
> The problems I'm facing are:
>
> 1) Tried using iBatis ClobTypeHandlerCallback, but
> encountered error
> of unable to setString with > 32K
>
> 2) Override ClobTypeHandlerCallback's setParameter
> to remove the last line
> //setter.setString((String)parameter);
> so that I can bypass the error. It works if I am
> inserting 1 clob
> only. If I'm inserting 2 clobs,
> e.g. (key, clob1, clob2), it will work fine if the
> clobs are small. If
> i'm inserting 2 very large clobs, the order of the
> clobs in the
> database is reversed, i.e. it becomes
> (key,clob2,clob1). My fellow
> developers and I have totally no idea why this
> actually happened.
>
> So what I did was to do an insert for the first
> clob, then follow by
> an update on the 2nd clob.
>
> 3) Once in a while, I am getting "io exception:
> software caused
> connection abort: socket write error" or "No more
> data to read" when I
> do an insertion of clob. This really kills my App.
> Does anyone has the
> solution to this?
>
> 4) I thought the above problem may be caused by the
> removal of
> setter.setString((String)parameter), hence I tried
> the alternative of
> using Spring's ClobStringTypeHandler instead.
> However, I got a
> ClassCastException when it is parsing the SqlMap's
> Parameter.
>
> Does anyone has solution for inserting clobs which
> are > 32K and will
> not encounter the socket write error?
>
> Is anyone using the oracle.sql.CLOB solution? Ever
> hit the socket
> write error or no more data to read error?
>
> I will appreciate some help here. Thanks!
>
> Regards,
> Ronn
>
> >Can you use the Oracle 10g driver?
>
> >Cheers,
> >Clinton
>
>
> On Wed, 9 Feb 2005 17:42:45 -0000, Peter Nunn
> <[EMAIL PROTECTED]> wrote:
> > I've been trying (for a while now) to implement a
> TypeHandlerCallback that
> > can WRITE clobs under Oracle 9i. It appears that
> this isn't possible. If
> > anyone has a solution to this then I'd be grateful
> for your assistance. Up to
> > now I haven't seen a workable solution.
> >
> > So far I have tried the following:
> >
> > 1) Call setter.setString(s).
> >
> > This fails because setString(x) has an upper limit
> of 4K.
> >
> > 2) Call setter.setCharacterStream(reader,
> s.length()). i.e. use same approach
> > as 2.0.9 ClobTypeHandlerCallback implementation.
> >
> > This doesn't work either.
> >
> > 3) Attempt to work with Oracle extension, namely
> oracle.sql.CLOB. The
> > preferred solution.
> >
> > This isn't possible because you cannot create an
> instance of oracle.sql.CLOB
> > directly. You need to either:
> >
> > a) create a temporary CLOB via a call to
> CLOB.createTemporary(...). This
> > requires a Connection object. Since
> ParameterSetter doesn't expose the
> > PreparedStatement we cannot get hold of the
> Connection object. So this
> > approach is a non-starter. Even if we did have the
> connection things aren't
> > straightforward because we need an
> OracleConnection... which you won't have
> > if you are using a DataSource to obtain your
> connections.
> >
> > b) execute a SELECT statement to obtain a
> ResultSet then obtain the CLOB
> > instance by calling ResultSet.getClob("field").
> This clearly isn't an option
> > from within a TypeHandlerCallback.
> >
> > I'd really appreciate some help here... I've hit a
> brick wall. As of now I've
> > come to the conclusion that iBatis cannot handle
> CLOBS in Oracle prior to
> > 10g. This is clearly an issue.
> >
> > So the only remaining option is to write a JDBC
> Dao implementation and bypass
> > SQLMAPS...any improvements upon this?
> >
> > Peter Nunn
> > Senior Java Developer
> > EMAP UK IT
> > Telephone: 020 7017 3601
> > Mobile: 07866 670 530
> >
> > ** For Emap magazine subscriptions & gift offers
> visit
> > http://www.greatmagazines.co.uk/emap **
> >
> >
>
--------------------------------------------------------------------------------------------------------------
> > The information in this email is intended only for
> the addressee(s) named
> > above. Access to this email by anyone else is
> unauthorised.
> >
> > If you are not the intended recipient of this
> message any disclosure,
> > copying, distribution or any action taken in
> reliance on it is prohibited and
> > may be unlawful.
> >
> > Emap plc and or its subsidiaries do not warrant
> that any attachments are free
> > from viruses or other defects and accept no
> liability for any losses
> > resulting from infected email transmissions.
> >
> > Please note that any views expressed in this email
> may be those of the
> > originator and do not necessarily reflect those of
> this organisation.
> >
>
--------------------------------------------------------------------------------------------------------------
> >
> >
>
Find local movie times and trailers on Yahoo! Movies.
http://au.movies.yahoo.com
