Can you help me understand why you wouldn't know what the type was in the db
before you read it in?
I'm sure you have a valid reason; I just need some help to understand.
--dc--
----- Original Message -----
From: "Ken K" <kenmail@telocity.com>
To: <pgsql-jdbc@postgresql.org>
Sent: Saturday, May 26, 2001 9:58 AM
Subject: [JDBC] Serialized data type for the Serialize code
> Hi all,
>
> Before I start working on this code I would like to
> get any feed back from others who have worked with the
> Serialize package or have created custom data types
> in Postgres.
>
> Two problems with the current Serialize code are that
> you need to know the type of class stored before you
> can read it back and if the record with the oid field
> is deleted the serialized record the oid points to is
> not deleted.
>
> What I would like to do is create a new user defined
> data type for Postgres called serialized that would
> contain two oid', one pointing to the table for the
> serialized object and one pointing to the record in
> that table.
>
> I have never worked with user defined types in
> Postgres or with the JDBC. I suppose that in Java
> the serialized type would be implimented as a array
> of two integers.
>
> It does not seem that there is any way to fire
> rules or triggers on data types, so the user would
> still need to add triggers on tables that contain
> serialized fields to handle deletes and updates.
> Two generic functions could be created, though, that
> would handle all classes.
>
> Any comments on this idea?
>
> Thanks,
>
> Ken
>
>
>
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