Henning Voss wrote:
> I am trying to use long transactions in a stand alone
> application to load
> data from a database and store the data in XML-files.
have you considered using dbUnit (http://dbunit.sourceforge.net/)?
> -----Original Message-----
> From: Henning Voss [mailto:[EMAIL PROTECTED]
> Sent: Wednesday, March 12, 2003 11:04 AM
> To: [EMAIL PROTECTED]
> Subject: Re: [castor-dev] Need Quick Help -- Timestamp
> mismatched
>
>
> Hi,
>
> i am getting the same problems and the given solutions
> did not work out for
> me. To be more specific:
> After closing and
> restarting the application the data should be read from
> the files and stored
> (including the modifications, of course) in the
> database. Because the
> application is stoped and restarted there is no way
> that the dirty checking
> could work. So basically i just want to disable dirty
> checking. Setting each
> and every field of my table to dirty="ignore" does not
> help (and i do not
> understand the reason for trying this. Dirty checking
> in long transactions
> is done using a timestamp (says the documentation). So
> i have to implement
> TimeStampable. Which i do not want to in the first place.
>
> As a workaround i tried to use short transaction (read
> the object from the
> database, copy all fields from the object read from xml
> to the db-object)
> and this works fine for simple tables but gets rather
> messy for nested
> tables (remove all child objects deleted in XML-file,
> add new, etc...
> (OR-mapping should make my life easier;) )
>
> After reading the posts quite a few people seem to
> suffer from this problem.
> Maybe it should be an new feature to disable dirty
> checking for long
> transaction if there is no suitable workaround.
>
> please help,
> Henning
>
> >>
> >> Hi,
> >>
> >>
> >> Nope, your right Conor.
> >>
> >> a solution would be to set the cache-timeout to a
> higher time level in
> >> your mapping file (or another style)
> >>
> >> ex.
> >> <cache-type type="time-limited" capacity="3"/>
> >>
> >> or to set your specific field to dirty="ignore" in
> your mapping file.
> >> No change/timestamp checking is done and you can save without
> >> an exception
> >>
> >> Good luck.
> >>
> >> Robin
> >> ----- Origineel Bericht -----
> >> Van: "Conor Allen" <[EMAIL PROTECTED]>
> >> Datum: Dinsdag, Januari 21, 2003 12:03 pm
> >> Onderwerp: Re: [castor-dev] Need Quick Help --
> Timestamp mismatched
> >>
> >> > I believe that for long transactions to work that
> the cache must
> >> > have a version of the object to compare against
> (for timestamp
> >> > checking and to generate the dirty checking
> update). That means
> >> > that if the server process is restarted that the
> long transaction
> >> > will fail. Also, if the object is dropped out of
> the cache (if you
> >> > are using count or time limited cache algorithms)
> the same thing
> >> > will probably happen.
> >> >
> >> > Am I wrong?
> >> >
> >> > Conor
> >> >
>
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