> Hi Robin,
>
> >> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
>
> --- cut ---
>
> >>
> >> I don't think you missing something obvious. But why don't you
> >> want any caching on you're objects ?
>
> I have two different (real-world) scenarios:
>
> - A standalone application loading data from an xml-file and update the
> objects in the database (so there can not be a 'old' version in the
> cache).
> I can workaround this problem by loading the objects in another
> transaction
> and use a second transaction to update (Database.update(Object)) the
> elements.
>
> - A web application is developed to view and edit data which is edited
> also
> by an exisiting application. The data in the web-application should always
> be up to date. Decreasing the cache-timeout increases Cache-Misses
> (->unable
> to update) while increasing the cache-timeout leads to obsolete data.
>
> >>
> >> Good luck,
> >>
> >> Robin Hoogeboom
> >>
> >>
> >>
> >> > hi,
> >> >
> >> > i would like to rephrase my question:
> >> >
> >> > Is it possible to do long transactions without bounded dirty
> >> checking ?
> >> >
> >> > Example:
> >> > Product p = new Product(...);
> >> > db.update(p);
> >> >
> >> > I tried various cache-type and dirty settings but to no avail.
> >> (can someone
> >> > explain what <cache-type>none</cache-type> does ?)
> >> >
> >> > Am i missing something obvious ?
> >> >
> >> > thanks,
> >> > Henning
> >> >
How many transactions are we talking about ? Is it a high-volume
application?. If you're cache timeout is small enough, the cache is flushed
and Castor is using data from database and not from cache.
If the application has not that many transactions, it is save to work this
way.
Another way is to use OQL instead. Castor doesn't use it cached data if you
use an OQL to update or read.
I also have found some in the list, who can flush the cash on an certain
time. It is also an possibility.
Good luck.
Robin
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