NextValue should NOT be a PK (it shouldn't be indexed at all), because it
will have a single row that will change constantly (in essence, it's
simulating a sequence in databases that don't have them)
Here's something on Lo values and separation of tables:
http://stackoverflow.com/questions/2192449/
What does it return?
On Aug 20, 1:09 pm, Melborp wrote:
> Hej Chris,
>
> Thank you for taking the time to answer.
>
> I was thinking about projections, but wasnt really sure how to apply
> it in this case.
>
> I tried your approach:
> var query = _nHibernateSession.CreateCriteria()
>
Okay, just incase this isn't clear enough for others and to make sure
I understand, I created a new table called HiValue and a PK field
named NextValue and seeded it with a default value of 0. In my hbm
file for OrderHeader I now have:
HiValue
NextValue
The
My suggestion is to flatten the hierarchy a little OR switch to a single
strategy (table per subclass)... deep hierarchies with changing strategies
are a pain to map and maintain.
Diego
On Fri, Aug 20, 2010 at 16:56, v64 wrote:
> Thanks for your reply. The mapping file i originally posted
commonly in our applications we define a BaseEntity so our domain
classes inherit from it, giving us a few advantages. have u got any
BaseEntity to show me? mines is basic and i extracted ideas from other
people, in the other side for example, i took a look to S#arp
Architecture's BaseEntity, very
We're about to embark upon some calendaring functionality in our
NHibernate-based system. The iCal format is certainly good for
interchange, but what about storage? It doesn't seem right to map the
events and reccurenc patterns to columns as CLOBs. An event starting
on Jan 1, 2011 with recurrenc
http://www.nhforge.org/doc/nh/en/#mapping-declaration-id-generator
see the snippet below 'hilo'. you have to create a table for the number and
add a row.
FB
> -Original Message-
> From: nhusers@googlegroups.com [mailto:nhus...@googlegroups.com] On Behalf
> Of nh_3478
> Sent: vrij
I get a genericadoexception with error {"could not get or update next
value[SQL: ]"}
and InnerException: "Invalid object name 'dbo.hibernate_unique_key'."
I am following, to the T, the Nhibernate 2 book by Aaron Cure.
//mssql 2008 express edition with table
OrderHeader
PK = Id, type = int
then t
Thanks for your reply. The mapping file i originally posted had a bug
in it where EndangeredAnimal was under Animal when it should have been
under WildAnimal. Here's the fixed file:
>From NH's mapping point of view, it doesn't matter that IberianLynx
extends EndangeredAnimal,
as it's seen as an Animal subclass.
Also, you can have many s, so NH wouldn't know where to put it.
You can probably specify the same join in IberianLynx, although schema
generation might fail.
Diego
Hej Chris,
Thank you for taking the time to answer.
I was thinking about projections, but wasnt really sure how to apply
it in this case.
I tried your approach:
var query = _nHibernateSession.CreateCriteria()
.Add(c => c.Unit.Id == unitId)
.Add(c => c.StatusId > 7
I'm trying to map a deep class hierarchy and having trouble getting
the desired mapping. Here's an example:
Classes:
namespace Animals
{
public class Animal
{
public string SpeciesName { get; set; }
}
public class DomesticAnimal : Animal
{
public string Name {
Does it work query the relationships from the other direction? I tried
building a similar query with my own domain model, but the
relationships weren't quite the same. Here's what I was thinking, not
sure if it will work. This is with lambda extensions, but without
creating aliases.
var query = s
You don't need to bypass anything.
You have to check the type of the entity that's being saved; if it's your
log entry type, then return.
Diego
On Fri, Aug 20, 2010 at 14:12, Chris J wrote:
>
> Since the event listener is hooked into the session factory, won't
> this create a recursion? Th
NH does not use the ThreadPool.
The ADO.NET providers... who knows.
Diego
On Fri, Aug 20, 2010 at 04:30, Frank wrote:
> I don't know if it can be answered but is NHibernate using the
> ThreadPool for internal stuff? I'm about to dump loads of work in the
> pool and am thinking about possib
Since the event listener is hooked into the session factory, won't
this create a recursion? The session.Save will trigger the listener
again while still in the listener.
I need a session that bypasses the event listener configuration.
On Aug 20, 9:45 am, Valeriu Caraulean wrote:
> You have cur
Okay, scratch the last question. Using FluentConfiguration is the
best way to go!!! I love this! This is probably the most flexible
validation framework i've ever seen!
I've already implemented this into my base classes. I'll share the
code incase anyone else has to do something similar.
My on
perhaps one can use interception?
Tuna Toksöz
Eternal sunshine of the open source mind.
http://devlicio.us/blogs/tuna_toksoz
http://tunatoksoz.com
http://twitter.com/tehlike
On Fri, Aug 20, 2010 at 12:39 PM, Diego Mijelshon wrote:
> I can certainly be sorry for his pain (I'm a little young t
I can certainly be sorry for his pain (I'm a little young to have shared
it), but unfortunately NHibernate is not optimized for that kind of (sick)
structure.
Diego
On Fri, Aug 20, 2010 at 12:58, John Davidson wrote:
> If you have ever worked in an IBM Mainframe/legacy environment you shou
Is there any way to get NH to emit a deadlock hint? e.g. for SQL server "SET
DEADLOCK_PRIORITY LOW". I have googled it, to no avail, and searched for
"deadlock" in the source :) At the moment I'm just executing a raw SQL
query.
Thanks,
Graham
--
You received this message because you are subscri
One more quick question, can you use a mixture of the
FluentConfiguration of a validationengine and also still have it check
the attribute flags as well (such as [NotNull] attributes), or are you
forced to go entirely via the fluent configuration and use Defines,
Satisfy, etc instead of Attributes
Thanks fabio, I was able to get this working with the
ValidateInstance.By command and using a ValidationDef on my entity. I
just need to play around with this more and see if I can figure out
how to roll this into the classes I already have made.
On Aug 20, 10:48 am, Fabio Maulo wrote:
> On Fri,
If you have ever worked in an IBM Mainframe/legacy environment you should
have some empathy for MattO.
The db he is using may have been developed 20+ years ago and because of you
IBM Mainframes work with dependancies, is less changable than any other
known environment.
His concerns about bandwidt
On Fri, Aug 20, 2010 at 12:44 PM, MattO wrote:
> Well this has gone over my head... Do you need to be using Fluent
> nHibernate to use this? I'm using hbm XML files for everything...
>
>
http://fabiomaulo.blogspot.com/search/label/Validator
--
Fabio Maulo
--
You received this message because
No, why?
FluentConfiguration class is from NHibernate.Validator.
On Fri, Aug 20, 2010 at 5:44 PM, MattO wrote:
> Well this has gone over my head... Do you need to be using Fluent
> nHibernate to use this? I'm using hbm XML files for everything...
>
> On Aug 20, 10:36 am, Fabio Maulo wrote:
>
You have current session in listener. Then:
private static void Save(IAuditLogEntry auditLogEntry, ISession session)
{
session
.GetSession(EntityMode.Poco)
.Save(auditLogEntry);
}
On Fri, Aug 20, 2010 at 5:41 PM, Chris J wrote:
>
> I am only aware of the one version of NHibernate in Action, co
Well this has gone over my head... Do you need to be using Fluent
nHibernate to use this? I'm using hbm XML files for everything...
On Aug 20, 10:36 am, Fabio Maulo wrote:
> Congratulation Valeriu.
>
> MattO,
> We don't have formal documentation for NHV btw I have posted a series
> exposing all
I am only aware of the one version of NHibernate in Action, covering
1.2.
Yes, I reviewed the Audit Log implementation, which was a helpful
example of how to use event listeners instead of an IInspector
implementation. However, the piece that I'm curious about, which is
not covered, it how to use
The problem is, NHibernate is not well designed for 300baud teletypes. It's
meant to be used in local networks.
If you have remote clients, they should be using a service exposed through
REST, WCF, or whatever buzzword of the day you like the most.
Also, you are failing to consider things like net
Congratulation Valeriu.
MattO,
We don't have formal documentation for NHV btw I have posted a series
exposing all features of NHV.
On Fri, Aug 20, 2010 at 12:20 PM, Valeriu Caraulean wrote:
> If you were using ValidationDef you can make a trick and use
> ValidateInstance method to resolve valida
by downloading the 3.0 and source I am able to use VS - thanks-
not sure what has been changed but at least I can begin to debug
thanks for the help
On Aug 20, 10:07 am, AAD wrote:
> I have the source for 2.1.2- also, I thought 3.0 was still in alpha
> testing-
> I will download 3.00 and see if I
If you were using ValidationDef you can make a trick and use
ValidateInstance method to resolve validators from container.
You're asking about attributes, so: the solution that worked earlier for us:
You can ry implement IConstraintValidatorFactory that will be resolving
components trough container
It's just one of those optomization tricks that could be done which is
why I ask if it "could" be done.
Here is a theoretical bandwidth savings computation:
Single table with 100 fields. You retrieve all of them. Total
bandwidth consumption per query due to "this_" table alias = 100 * 5
bytes=
I have installed 3.0 and still have the same problem-
I have the source download for 3.0 also
On Aug 20, 10:07 am, AAD wrote:
> I have the source for 2.1.2- also, I thought 3.0 was still in alpha
> testing-
> I will download 3.00 and see if I see a difference-
> thanks
>
> On Aug 20, 9:51 am, Joh
Looks like I can't modify my message. To add I am using NH
v2.1.2.4000.
On Aug 20, 11:05 am, Mike wrote:
> I created a custom dialect and told NH to use it. From there I
> registered a few keywords so I could use it with HQL.
>
> public class CustomDialect : Oracle10gDialect
> {
> public
I have the source for 2.1.2- also, I thought 3.0 was still in alpha
testing-
I will download 3.00 and see if I see a difference-
thanks
On Aug 20, 9:51 am, John Davidson wrote:
> This is in 2 parts. First to step through CollectionBinder.cs you will need
> the source code for NH2.1.2 rather than
I created a custom dialect and told NH to use it. From there I
registered a few keywords so I could use it with HQL.
public class CustomDialect : Oracle10gDialect
{
public CustomDialect()
{
RegisterKeyword("start");
RegisterKeyword("with");
On Aug 19, 2:27 pm, Diego Mijelshon wrote:
> Don't congratulate me yet... wait to see if I keep writing there :-D
I hope you do - your first two posts are very informative, concise,
and well written!
-Tom
>
> Diego
>
>
>
> On Thu, Aug 19, 2010 at 15:05, Fabio Maulo wrote:
> > Congratulat
This is in 2 parts. First to step through CollectionBinder.cs you will need
the source code for NH2.1.2 rather than just the binaries.
The second part is a recommendation to do your conversion to NH3 as it will
not be any more painful, and may be less due to numerous other bug fixes.
John Davidso
Sorted :)
I wasn't flushing the session in my UOW when commit was called.
On Aug 20, 3:40 pm, Ollie Riches wrote:
> I think the important detail for the exception is:
>
> 2010-08-20 15:27:22,563 [6] ERROR NHibernate.Impl.AbstractSessionImpl
> - DTC transaction prepre phase failed
> System.Tran
I think the important detail for the exception is:
2010-08-20 15:27:22,563 [6] ERROR NHibernate.Impl.AbstractSessionImpl
- DTC transaction prepre phase failed
System.Transactions.TransactionException: The operation is not valid
for the state of the transaction. --->
System.Data.SqlClient.SqlExcep
I'm receiving the following error when I started using MessageQueue
inside a TransactionScope transaction - any ideas why this is
happening, I realise the transaction is now getting prompted to a
distributed transaction and hence have turned on and configured MSDTC.
I suspect this is something to
I have created a custom validator that I wish to put on one of my
business objects attributes to do validation before an object is
persisted to the database.
In order for validation to be successful though I need to be able to
pass in the variable to the custom validator, it is NOT a constant
like
I am getting a mapping error on a select . Error is:
Association references unmapped class
This works in 1.2.2 and I have checked the hbm.xml and it has
"Embedded Resource" and "do Not copy" set on-
I have looked at the mapping dll and I can see the table there- with
other tables that do work (oth
I don't know what I was doing last night, but it works this morning
after re-entering the connection string with
CharBitDataAsString=TRUE. Maybe I had a typo that I didn't see
because my eyes were crossing.
Thank you very much for the help MattO.
On Aug 19, 9:36 pm, MattO wrote:
> I'm using 2.1
"select Name, Surname from Record where x = y"
It will be returned as an Object[], which isn't as nice, but you can
do this.
You can also create a class that can accept this result, apply Aliases
to the columns, and use an AliasToBeanTransfomer.
On Aug 19, 4:20 am, osman nuri katib wrote:
> I
Hello there!
I have the following model:
class A
{
public virtual int Id { get; set; }
public virtual ICollection B { get; set; }
public virtual IEnumerable C { get; }
}
class B
{
public virtual int Id { get; set; }
public virtual A A { get; set; }
public virtual ICollection C { get;
congratulations and keep up the courage :=)
On Thu, Aug 19, 2010 at 8:27 PM, Diego Mijelshon wrote:
> Don't congratulate me yet... wait to see if I keep writing there :-D
>
> Diego
>
>
>
> On Thu, Aug 19, 2010 at 15:05, Fabio Maulo wrote:
>
>> Congratulation and WELCOME to blogsfera
>>
>> On
BTW, what version of NH the "NHibernate in Actions" describing? 1.2? Or 2.x?
Have you looked at "Audit Log" implementation using event listeners from
more recent versions of NH? It may turn to easier and just better solution.
An example:
http://nhforge.org/wikis/howtonh/creating-an-audit-log-using
I don't know if it can be answered but is NHibernate using the
ThreadPool for internal stuff? I'm about to dump loads of work in the
pool and am thinking about possible side effects like delaying other
Timers and whatnot. I've tried limiting the pools maximum concurrent
threads and saw some Timers
You open a cursor, but don't do anything with it, as you return 3 scalars.
FB
> I have the following named query for an Oracle database. When it is run I
> get the error "Not all named parameters have been set". I think it could
be
> the : characters used in the assignment but am not sur
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