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
> 
> -----Original Message-----
> From: REMICOURT Beno�t [mailto:[EMAIL PROTECTED]] 
> Sent: 21 January 2003 10:49
> To: [EMAIL PROTECTED]
> Subject: [castor-dev] Need Quick Help -- Timestamp mismatched
> Importance: High
> 
> Hi everyone,
> 
> I encounter a big and very blocking error on my application using 
> Castor0.9.3.21.
> I have already deploy the same application for different clients 
> before with
> no problems till now.
> 
> The config is that time:
> - Linux Red Hat
> - Postgres 7.1
> - Tomcat 3.3.1
> - Castor 0.9.3.21
> - My App
> - Specific project classes linked with my app
> 
> My problem is, I am the developper of the core of the project (My 
> App), a
> Web Content Management Tool to build Dynamic WebSites with lots of 
> editorialcontents.
> Contents are created/edited/updated/deleted with back office 
> interface and
> viewed with front office (= website).
> 
> I am using long transactions.
> 
> Problem is in back office when I tried to udpdate a content, a 
> "Timestampmismatched" error occured.
> I try to find out what is the problem because for this project I 
> was not the
> "specific classes" developper.
> After reviewing all the code of the developper, it seems to be 
> correct and
> conform with my app.
> 
> I, so, try to debug and find where the problem appears:
> 
> In 
> "org.exolab.castor.persist.ClassMolder.update(TransactionContext, OID,
> DepositBox, Object, AccessMode)" castor try that:
> 
> -> fields = (Object[]) locker.getObject( tx );
> ->
> ->        if ( !isDependent() && !_timeStampable )
> ->            throw new IllegalArgumentException("A master object that
> involves in a long transaction must be a TimeStampable!");
> ->
> ->            long lockTimestamp = locker.getTimeStamp();
> ->        long objectTimestamp = _timeStampable?
> ((TimeStampable)object).jdoGetTimeStamp(): 1;
> ->
> ->        if ( objectTimestamp > 0 && oid.getIdentity() != null ) {
> ->            ...
> 
> And in fact, locker.getObject( tx) returns NULL ! No object in 
> cache !
> So locker's timestamp is 0 and object timestamp is different => 
> Timestampexception !
> 
> The problem is, ok the cache is empty for this object but how can 
> I refresh
> the whole cache ?
> Or how to make castor to not check the cache and force update my 
> object ?
> 
> If anyone have a solution to this problem, please help.
> I have to solve this before the end of the week, so if anyone can 
> help me,
> thanks in advance.
> 
> Sincerely, thanks all for your job with Castor,
> 
> REMICOURT Beno�t
> 
> 
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