Re: S.O.D.A. database Query API - call for comments
From: Carl Rosenberger <carl_at_db4o.com>
Date: Sat, 21 Jul 2001 18:01:59 GMT
Message-ID: <9cvdk2$eju$02$1_at_news.t-online.com>
Date: Sat, 21 Jul 2001 18:01:59 GMT
Message-ID: <9cvdk2$eju$02$1_at_news.t-online.com>
Lee Fesperman wrote:
> FirstSQL/J uses SQL. A class is just another database type for a column.
The only change
> to SQL is to allow you call the methods of a column object and a 'new'
operator for
> creating objects.
With your approach there is no possibility for server-side query optimization. Every single object needs to be instantiated completely, just to evaluate a simple member. This will perform very badly.
> > Do you use Java serialization to store objects?
>
> Yes, in columns.
What do you do, if user classes are modified?
Serialization and deserialization is very slow and produces lots of storage
Kind regards,
Carl
--- Carl Rosenberger db4o - database for objects - http://www.db4o.comReceived on Sat Jul 21 2001 - 20:01:59 CEST