I have a simple many to many association like below
1.User(UserId)
2.UserProjects(UserId,ProjectId,RowId)
3.Projects(ProjectId)
When I do a mapping with many to many with a bag collection of Users
in Projects the nhibernate query generated for adding a user to
project turns out to be
Dim p as
Hi,
I'm fairly new to NHibernate and I've just got my first sample
application running.
I'm using Visual c++ (.net framework 3.5 sp1), visual studio express
2008.
VS studio does not perform code completion on code statements
involving the NHibernate classes/namespaces,
e.g. intellisense does not
Looking into this further, I found "Luke", the Lucene Index Toolbox,
which has allowed me to look at my index and try some ad-hoc queries.
I've found a few things which I'm wondering about...
I rebuilt the index tonight, and I've noticed that my project version
was updated from 0.2.3372.26162 to
Hi,
I have the following failing test:
using (var sess = Container.Resolve().OpenSession())
{
using (IFullTextSession fullTextSession =
NHibernate.Search.Search.CreateFullTextSession(sess))
{
Page page = new Page { Title = "mypage", OwnerId = 1 };
I can a bit, but not much as I'm not able to catch it - it only comes
up when I'm navigating my code's objects and variables in the locals
window.
When I expand the qry object after the call to CreateFullTextQuery, if
I expand qry in the Locals window, the ReturnTypes propery shows as
value: 'qry
or maybe sqlite/whatever-embedded may be granted as 'flat file' too ;)
On Mar 25, 1:01 pm, x97mdr wrote:
> Has anyone ever used NHibernate (say with the text odbc drivers) to
> persist their information to a set of flat files in addition to a
> database?
>
> The reason I ask is that my applicat
"Visual Studio raises an NHibernate.QueryException"
Can you post exception details ?
On Mar 26, 7:55 pm, Rémi wrote:
> Can anyone help out a newbie?
>
> I've been working at getting NHibernate + Lucene.Net working
> together. I've got indexes built on a few fields of a single class -
> correctl
Hi all.
I agree with Oskar, Roger and Jay. Timespan is conceptually a duration
(time interval), not a time. We use it to express "age" like 1h, 24h,
7days, 1month etc. Using it as a time is a very special case that
should be explicit. After all because it reduces the value range
massively. You wou
All,
I'm getting a weird problem - I'm doing the following call:
ILocation loc = Session.Get(id);
and NH is throwing this error:
Exception Unable to cast object of type
'INHibernateProxyProxy2183142372c34751a1aceee41a501ee3' to type
'Intellident.Core.Domains.Location'.
at NHibernate.Impl.Se
Can anyone help out a newbie?
I've been working at getting NHibernate + Lucene.Net working
together. I've got indexes built on a few fields of a single class -
correctly, as far as I can tell - but I've been unable to build a
query that returns results. Here's a snippet:
I wouldn't use container.Resolve ... but similar idea ... It prevents
your domain objet from needing the dependency outside of the scope of
the operation (construction). The need is unfortunately more of a
technical one due to how the language works but by introducing the
separation it can be avoi
Hello,
I am using the LockMode.Upgrade lock mode on a query to prevent
concurrent access to a row. Using a simple test case with 2 Sessions I
can see that Session 2 will not execute it's query until Session 1
commits it's transaction, but in our application we are seeing
something strange.
The
If you are working with a legacy database (equals "you can not modify
the tables") then you should take Ken's approach.
If not, and you can modify the tables, you need 2 IDs in the
TblStudent, and your mappings would be (note the inverse false and the
column names):
...
Try to study how HighLow are working in NH.You will see that you have only
two better options:
guid.comb : no round-trips because assigned in client side
assigned : you custom ID assigned by your application; no round-trips
because assigned in client side
After that HighLow is the better option if
Example scenario:
- Web farm with 20 servers
- ASP.NET app using SessionFactory singleton pattern
It would seem then that only 20 different things would interested in
the hi table, and that selects/increments would not be happening too
often with the default maxlow options. That seems quite scala
>> Did you mean persistent or transient? I need a transient dependency to a
>> service.
>Not surprisingly I am using the definition of transient itself not
>refering to a transient vs persistent object. In other words for 95+%
>of cases the object does not need to *remember* which service to us
You can ask by a ticket here:
http://nhjira.koah.net/browse/NHSP
On Thu, Mar 26, 2009 at 12:47 PM, Bruno wrote:
>
> Same question...
>
> On 20 fev, 08:39, stachu wrote:
> > Hi!
> > I found NHSpatialvery interesting and promesing. I wanted to give it
> > a try but I noticed that it's build again
Well... it depend, if you are creating a session-factory for each
persistence action, the the round-trip to read the High value is only your
last concern.
The roundtrip happen only one time per-session-factory per-table (inside
maxlow, obviously)
2009/3/26 Daniel Auger
>
> Please excuse my ignor
The Hi values are read once (until lo becomes larger than int16.Max(default)
I don't ever think it becomes a bottleneck.
Tuna Toksöz
Eternal sunshine of the open source mind.
http://devlicio.us/blogs/tuna_toksoz
http://tunatoksoz.com
http://twitter.com/tehlike
On Thu, Mar 26, 2009 at 6:27 PM
not implemented. However, you can use your own functions, but i don't
remember how.
Tuna Toksöz
Eternal sunshine of the open source mind.
http://devlicio.us/blogs/tuna_toksoz
http://tunatoksoz.com
http://twitter.com/tehlike
On Thu, Mar 26, 2009 at 11:10 AM, Sebastien Lambla wrote:
>
> I did
Please excuse my ignorance, but can the high table reads/increments
ever become a performance bottleneck since every session factory has
to do a read/increment on the same table/column? I'm guessing that
maybe in theory the answer is yes, but in practicality the answer is
no.
On Mar 26, 8:32 am,
Hi all,
I did a quick scan but couldnt find static methods to use the soundex function
in linq2nhib. Have I missed it or is it just not implemented?
Thanks,
Seb
_
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This is simple example, originary code is
Code:
var a_DetachedCriteria = DetachedCriteria.For();
a_DetachedCriteria
.SetProjection(Property.ForName("ID"))
.Add(x => x.Login == a_UserLogon)
.Add(u => u.Password == a_UserPsw)
.Add(u => u.Status == UserStatus.Actual)
.SetMax
Same question...
On 20 fev, 08:39, stachu wrote:
> Hi!
> I found NHSpatialvery interesting and promesing. I wanted to give it
> a try but I noticed that it's build against NH2.0.1. However at work
> we use NH2.1 and it tried to build NHSP with it but it failed. My
> question is if you are planni
hmm
maybe:
where Gender='laddie' / where Gender='lassie'
On Thu, Mar 26, 2009 at 5:09 PM, Joao wrote:
>
>
> Hi, I'm trying to map 2 collections of the same entity, but when I
> load the data from the database, both collections have the same
> entities, because they map the same key column
Hi, I'm trying to map 2 collections of the same entity, but when I
load the data from the database, both collections have the same
entities, because they map the same key column...
Here is a sample code part similar to mine, where a "School" has 2
collections of "Students", the Boys and the Girl
> I have
> found very very few circumstances where an entity needed a
> non-transient dependency to something.
> <<
>
> Did you mean persistent or transient? I need a transient dependency to a
> service.
>
Not surprisingly I am using the definition of transient itself not
refering to a transient
> I have
> found very very few circumstances where an entity needed a
> non-transient dependency to something.
> <<
>
> Did you mean persistent or transient? I need a transient dependency to a
> service.
>
Not surprisingly I am using the definition of transient itself not
refering to a transient
Hi Greg
>>
While you have done your very best to try to find and edge case
<<
I'm not actually looking for a corner case here I'm just trying to find a
way to implement what I currently need, but it does make me wonder about
injecting dependencies into my domain. Surely there are circumstance
Hi Anne
> Regarding your actual algorithm, it sounds like you're making
> something very similar to soundex.
Yes, it is basically that, for now at least. I will look at what algorithm
I will use when I am happy with the approach.
Pete
http://mrpmorris.blogspot.com
--~--~-~--~
Hi Fabio
> You can configure NH to use the field (including the backfield of an
> autoproperty) and don't have the setter.
Thanks, I am aware of that, the problem is an OOP one really. If I don't
have a setter then I wont be able to set the value without using a
parameterised constructor, and
Regarding your actual algorithm, it sounds like you're making
something very similar to soundex. The soundex algorithm is pre-built
into a number of databases (SQL Server at least, I'm sure of), and I'd
bet is available elsewhere. Even if you don't decide to go with a
premade implementation, it
That sure did it. Thanks again. This is going to make my life SO
much easier.
On Mar 26, 3:16 am, Stefan Steinegger wrote:
> I really don't know, would have to try myself. Are there different
> columns for the properties? You probably should try to define a column
> name.
>
> On 26 Mrz., 05:19
I didn't say that.Since NHMA use the mapping schema to generate the
attributes, the option should be there.
Maybe after the definition maybe your class will be having more metadata
than code.
On Thu, Mar 26, 2009 at 10:21 AM, Utopico wrote:
>
> So it is a feature in the hbm-languague definition
Ken, in NH is even better because it respect a "sequence per table".
An High is requested per sessionFactory per Persister...
Example:
Table-A: 101, 102,103,104..501,502
Table-B: 201, 202, 203, 204... 801,802
2009/3/26 Ken Egozi
> the way I understand it:
>
> a generated 64bit ID wil
I think that you can set Update=False, then the data will be selected and
inserted, but not updated. with a readonly property and a factory method (or
constructor) for setting the value for new instances you're set.
On Thu, Mar 26, 2009 at 3:23 PM, Fabio Maulo wrote:
> 2009/3/26 Peter Morris
>
2009/3/26 Peter Morris
>
> This would work and is the kind of thing I would normally do, but in my
> current ORM I can mark a property so that it can no longer be updated once
> persisted so I can use this approach and still make Name immutible. In NH
> I
> am trying to make my classes complete
So it is a feature in the hbm-languague definition but not as
attributes? If so is it possible to add this feature to the attributes
in an "easy" way?
On 26 Mar, 13:09, Dario Quintana
wrote:
> Should be something like this in hbm-language
>
> To a table:
>
> my customer comment here
>
While you have done your very best to try to find and edge case I
think even this can be done without injecting to the entity. I have
found very very few circumstances where an entity needed a
non-transient dependency to something. The ones that I have found tend
to be infrastructure type cross cu
Should be something like this in hbm-language
To a table:
my customer comment here
...
To a column:
My Name comment here
You should extrapolate this to those attributes, since are generated by the
NH-schema, should be supported.
The dialects with the option enabl
afaik, Description is not available on all main RDBMS, thus NH is not
supporting it.
On Thu, Mar 26, 2009 at 11:47 AM, Utopico wrote:
>
> I am working on a project where the database should be documented. I
> am looking for a way to use hibernate to define this in hibernate. I
> am using attri
Yes.
Tuna Toksöz
Eternal sunshine of the open source mind.
http://devlicio.us/blogs/tuna_toksoz
http://tunatoksoz.com
http://twitter.com/tehlike
On Thu, Mar 26, 2009 at 11:40 AM, Ken Egozi wrote:
>
> as an outcome - every SessionFactory gets a range (using the HI) then
> increments the LO o
I am working on a project where the database should be documented. I
am looking for a way to use hibernate to define this in hibernate. I
am using attributes on my classes to define my database (an example
can be seen below).
[NHibernate.Mapping.Attributes.Class(Table = "LINK")]
public pa
the way I understand it:
a generated 64bit ID will consist of a HI and LO 32bit values (HI*32bit+LO)
when a SessionFactory kicks in, it requests (and increments) the HI from the
DB.
as an outcome - every SessionFactory gets a range (using the HI) then
increments the LO on each new entity.
On
I really don't know, would have to try myself. Are there different
columns for the properties? You probably should try to define a column
name.
On 26 Mrz., 05:19, Joshua wrote:
> Thanks Stefan.
>
> I'm now able to implement one of the interface properties explicitly,
> but when I add the second
>>
Haven't read the whole message (i will in a moment) but a quick answer would
be did you try NH Search, or pure lucene indexing?
<<
No, neither, but I am mainly interested in the conceptual part of the
question :-)
Thanks
Pete
http://mrpmorris.blogspot.com
--~--~-~--~~--
>
It is the thing that you last said, when exhaust a new Hi value is obtained,
Lo values are incremented everytime an object is persisted.
<
Ah I see, that makes sense. I am confusing it with the other approach where
only the exact number of IDs are requested when an update is required.
Pete
Regardless of transaction thing, HiLo assignes Id BEFORE it is sent to
database. No select is executed.
If lo value is >maxLoValue then a new Hi is obtained but in another
transaction.
It is the thing that you last said, when exhaust a new Hi value is obtained,
Lo values are incremented everytime
> and as for the people asking about what the behaviour was - the simplest
> thing is to setup a quick two-entity domain with hilo id, new one instance
> of each, session.Save them both and peek into the generated data.
As I am still at theory level and can't yet do that may I ask a question?
:-
Haven't read the whole message (i will in a moment) but a quick answer would
be did you try NH Search, or pure lucene indexing?
Tuna Toksöz
Eternal sunshine of the open source mind.
http://devlicio.us/blogs/tuna_toksoz
http://tunatoksoz.com
http://twitter.com/tehlike
On Thu, Mar 26, 2009 at 1
> Fabio gives the answer but do you really need to do it?
Not sure :-)
I have a Song class which has a Name property. When the user searches for a
song I want to list songs with a similar name to what they entered rather
than the exact string. To achieve this I am considering doing somethin
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