Re: Appending to a large object

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От Barry Lind
Тема Re: Appending to a large object
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Msg-id 3F32713E.4010201@xythos.com
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Ответ на Re: Appending to a large object  (Ole Streicher <ole-usenet-spam@gmx.net>)
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Ole,

If you look at the source you will see that there is a seek method.  I
don't know why it isn't in the docs.

thanks,
--Barry

Ole Streicher wrote:
> Hi Barry,
>
> Am Donnerstag, 7. August 2003 04:55 schrieb Barry Lind:
>
>>The outputstream interface is for reading only.  If you want to append
>>you are going to need to use the LargeObject interface.  This is
>>documented in the PostgreSQL Programmer's Guide.  See the section
>>titled:  PostgreSQL Extensions to the JDBC API.
>
>
> I did; but I couldn't find what I need:
>
> 5.7.3.1 Methods
>
> * public int getOID() - doesn't help
>
> * public void close() - doesn't help
>
> * public byte[] read(int len) / public int read(byte[] buf, int off, int len)
>   - doesn't help since I need writing, not reading
>
> * public void write (byte[] buf) - doesn't help since I cannot specify the
>   offset
>
> * public void write(byte[] buf, int off, int len) - doesn't help since the
>   offset mentioned is within the array, not within the LargeObject.
>
> What I expected was a function like "seek()", but I couldn't find it there.
> So, how can I append to an existing stream? Is there a function I have just
> overseen? (PostgreSQL 7.3.2 Programmer's Guide)
>
> Regards
>
> Ole
>



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