With a test would be better 2010/4/5 Fabio Maulo <[email protected]>
> Try to explain me what you can't do. > > 2010/4/5 snicker <[email protected]> > > Dearest Fabio- >> I hope that your post on the first of April was simply an April fools >> joke. Your post of a link has absolutely no value because the contents >> are only instructions on *how to use filters*. This is exactly what >> both Thora and I would LOVE to do, but you seem to have a problem >> comprehending that *we cannot* until filters can be applied on many to >> one collections. >> >> On Apr 1, 10:54 pm, Fabio Maulo <[email protected]> wrote: >> > http://docs.jboss.org/hibernate/core/3.3/reference/en/html/filters.html >> > >> > 2010/3/31 thora68 <[email protected]> >> > >> > >> > >> > > You're' very welcome snickers :-) >> > >> > > Actually, EF4 is not an option for us either until we have exhausted >> > > all options with NH. Frankly, I suspect EF4 will have serious issues >> > > with bi-temp databases as well, but if all else fails we will >> > > certainly look into hooking into EF4 at some level to achieve out >> > > goals. >> > >> > > But I would be interested in hearing the NH community's take one >> > > mapping (bi-)temp databases. In particlular we are interested in >> > > mapping a particular type of database called Asserted Versioning >> > > Tables, as outlined here: >> > >> > >http://mindfuldata.com/TemporalDataManagement/tempdm-pdf/Asserted%20V. >> .. >> > >> > > Basically with this approach you end up with several versions of an >> > > entity (one row per version), and these version share the same >> > > business key. Only when you consider the temporal aspect of the entity >> > > do you get a single row/version. This means traditional PK/FK >> > > realtionships are off. >> > >> > > I have noticed that there are several references out there of people >> > > rolling their own temporal databases, using sprocs, filters etc, But >> > > the method outlined in the link above seem to be based on a solid >> > > foundation, and consider most aspects of "bi-temporality". Perhaps it >> > > could provide a more-or-less standardized way of tackling time in our >> > > entity models? >> > >> > > So some questions to the community: >> > > Has anyone attempted to map such a beast (or something similar)? >> > > Is NH up to the task of handling this? >> > > What would need to change in order for NH to handle this? >> > > Who should we contact (contract with) if we wished to have someone >> > > help us develop this kind of support in NH? >> > >> > > -- >> > > Thor A. Johansen >> > > R&D Manager >> > > Oppad AS >> > >> > > On 23 Mar, 16:48, snicker <[email protected]> wrote: >> > >> > > [snip] >> > >> > > > EF4 is not an option in my case because I will not be using MSSQL. >> > >> > > > Thank you for your valuable input Thora. >> > >> > > -- >> > > 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]<nhusers%[email protected]> >> <nhusers%[email protected]<nhusers%[email protected]> >> > >> > > . >> > > For more options, visit this group at >> > >http://groups.google.com/group/nhusers?hl=en. >> > >> > -- >> > Fabio Maulo >> >> -- >> 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]<nhusers%[email protected]> >> . >> For more options, visit this group at >> http://groups.google.com/group/nhusers?hl=en. >> >> > > > -- > Fabio Maulo > > -- Fabio Maulo -- 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.
