Well, but you do have invalid entities persisted, right? That is my point. It can happen…Now, you have several options for fixing this. In some naive scenarios, you could probably pad the numbers with zero, but in most cases you’ll need to load the invalid entities for being corrected in your app’s UI. So, even though you perform validation before saving entities, you can still have invalid entities on the database (btw, to me an invalid entity is one that doesn’t comply to a predefined set of rules). -- Luis Abreu From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Ayende Rahien Sent: sábado, 25 de Outubro de 2008 21:41 To: [email protected] Subject: [nhusers] Re: Calling constructor that performs guard checks - immutable types At this point, the DB is broken, you can't change the app before you fix the data. On Sat, Oct 25, 2008 at 10:31 PM, Luis Abreu <[EMAIL PROTECTED]> wrote: Oh no? And then how do you solve those cases? Lets suppose you've got a property called Something on object X and you say it must have no less than 3 digits. You've already persisted 1000 objects when you receive a report saying that now Something must have no more than 10 chars and that all digits must be bigger than 5. Aren't those 1000 objects in an invalid state? I'd say yes, they are and yes this is a common situation that affects many real apps… -- Luis Abreu From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Fabio Maulo Sent: sábado, 25 de Outubro de 2008 18:56
To: [email protected] Subject: [nhusers] Re: Calling constructor that performs guard checks - immutable types I don't have persisted invalid entity instances even when I change a validation constraint. 2008/10/25 Luis Abreu <[EMAIL PROTECTED]> Yes, you can end up having persisted objects with invalid state. How? Simple, just think about what happens when one of your validation rules changes after your app is on production…this is an interesting topic which has also been discussed on the altnet list… -- Luis Abreu From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Will Shaver Sent: sábado, 25 de Outubro de 2008 17:08 To: [email protected] Subject: [nhusers] Re: Calling constructor that performs guard checks - immutable types I believe this has been discussed in the past, please search the group archives. While I believe there are solutions involving custom object loaders, why would you have an invalid object in your database? On Oct 25, 2008 4:17 AM, "Fabio Maulo" <[EMAIL PROTECTED]> wrote: Repeated request. Our friend bstack is something impatient. 2008/10/22 bstack <[EMAIL PROTECTED]> > > > All, > > We are using immutable types in our domain, that we want to map > directly to to dat... -- Fabio Maulo No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.175 / Virus Database: 270.8.1/1732 - Release Date: 22-10-2008 07:23 -- Fabio Maulo No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.175 / Virus Database: 270.8.1/1732 - Release Date: 22-10-2008 07:23 No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.175 / Virus Database: 270.8.1/1732 - Release Date: 22-10-2008 07:23 --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "nhusers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/nhusers?hl=en -~----------~----~----~----~------~----~------~--~---
