http://ayende.com/Blog/archive/2009/07/26/nhibernate-linq-1.0-released.aspx
Well, NHibernate Linq is officially released and in ayende's article he said
"NHibernate’s Linq support has been tested (in production!) for the last couple
of years, and most people find it more than sufficient for thei
老赵, I think the current version of NHibernate.Linq not use it in a
production environment, if the two ways for writing the generated SQL is the
same, and has been the object is different, then the problem is the Linq
2009/8/15 Jeffrey Zhao
> Hello, I met a problem when use NHibernate.Linq to ge
Session in httpSession is for some special cases in an application and
should be avoided.Session in httpSession would be useful for some
application where the amount of users is really little (compared with what
we are waiting for a real WEB applications; my optimistic estimation is <
1000 that inc
But that is not a bug, it is a sub-task with patch
2009/8/14 Niclas Pehrsson
>
> http://nhjira.koah.net/browse/NH-1827
> >
>
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Hello, I met a problem when use NHibernate.Linq to get single entity with eager
load. For example I've a the models like:
public class Product { ... }
public class Product
{
public virtual int ProductID { get; set; }
public virtual string Name { get; set; }
public virtual ISet Propert
Everything's fine after creating an bi-directional association with an
IList in model.
Thanks, Stefan.
Blog: http://www.cnblogs.com/JeffreyZhao/
Twitter: http://twitter.com/jeffz_cn
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From: "Jeffrey Zhao"
Sent: Friday, August 14, 2009 10:27 PM
Well, you could build the DTOs after the commit, since the Session
would still be open.
In the example code I provided, here's how the version is set:
using (ISession s = sessionFactory.OpenSession())
{
using (ITransaction t = s.BeginTransaction())
http://nhjira.koah.net/browse/NH-1827
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nhuse
Several requests from different users would use the method at a time since
it is static.
However there is one ASP.NET session per user and one user can only trigger
one event at a time. Would still be a problem ?
Another question: Suppose I decide to use Session Management provided by NH
v 1.2 wit
If you have 50 million of records then this solution is not feasible
imho,
that's why I am trying to split it.
On Aug 14, 4:34 pm, Stefan Steinegger
wrote:
> Why not simply:
>
> IList result = session
> .CreateQuery("select m.Text from Message where m.Read = false
> and ...")
> .List();
>
>
Thanks for your reply, but it seems that I have to map Property as entitis
since I need to get a single Property, modify and submit the changes of it.
I tried the mapping:
but it seems that NH won't only pro
oop
it's an easy one ye!!
query = query.Where(criterion);
:s
On Aug 14, 2:49 pm, Wayne Douglas wrote:
> hi i've ran into a problem with the following code:
>
>
> IList>> criteria = new
> List>>();
> var sn = incommingUser.ScreenName;
> criteria.Add(user => user.Name == username);
>
>
NH session in HttpSession is not a good idea in that case. Several requests
using the same session at the same time will yield in an exception in your
case.
Tuna Toksöz
Eternal sunshine of the open source mind.
http://devlicio.us/blogs/tuna_toksoz
http://tunatoksoz.com
http://twitter.com/tehlike
Hi,
I have seen a lot of examples about session management where the idea is
trying to hide the ISession from the application ( as far as I understood ).
However implementing session management seems to be a complex task and there
is few documentation about how to do that that for both Winforms an
Ok, it sounds reasonable. But where validation that requires database
query should be placed?. Should it go before business operation, that
changes entity state? Pre-validation also would cause bugs, especially
in case of complex business rules.
On Aug 14, 3:58 pm, Stefan Steinegger
wrote:
> I w
hi i've ran into a problem with the following code:
IList>> criteria = new
List>>();
var sn = incommingUser.ScreenName;
criteria.Add(user => user.Name == username);
var users = Repository.FindAll(criteria);
and in the repository:
public virtual IList FindAll(IList>> criteria)
{
Why not simply:
IList result = session
.CreateQuery("select m.Text from Message where m.Read = false
and ...")
.List();
and
session.Update("Message set m.Read = false where ...");
You could also have a list of ids to know which messages need to be
set to read.
On 14 Aug., 14:39, "empe...@
2009/8/14 Stefan Steinegger :
>
> The index of a list is no property. It is just a column to allow NH to
> read it in the same order back as it has been stored.
>
> Not every column is a property. Foreign keys aren't, list indexes are
> also no properties.
>
> With a list of composite-elements you
session.Delete does not work with named parameters (as the exception is
saying)You should use positional parameter.
session.Delete("from Foo foo where foo.ModuleId = ?", m.ModuleId,
NHibernate.NHibernateUtil.Int32);
2009/8/14 nicco80
>
> I posted a testcase to the nhcontrib group.
>
> http://g
The index of a list is no property. It is just a column to allow NH to
read it in the same order back as it has been stored.
Not every column is a property. Foreign keys aren't, list indexes are
also no properties.
With a list of composite-elements your Property would only look like
this:
publi
I wouldn't evict anything. Just my opinion.
There is no persistence ignorance if you can tell the persistence
layer to undo some changes in memory. If you implement as if there is
no persistency, you don't expect to be able to undo a few changes you
made in memory. There aren't "two layers" of ch
have a look to the dialect you are using and let me know if the LEFT
function is there or not.Thanks.
2009/8/13 nerode
>
> Other than the fact tha I can find no documentation on this (any links
> appreciated), I've found a change from the previous parser: a
> statement that is designed to be ex
For the last question, the reason I use "Set" is that "List" in NH mapping
has an "index". I tried to use the Property.SortOrder as the index but met a
lot of problems. So I try to use a "sorted set" (as the doc mentioned) as a
workaround.
Thanks for your reply, I'll have a try later. I used L
In our domain model, we have a Message entity. Message entity is basic
class with a simple string property and a status bool property if the
message is "read" or not . The thing is we are expecting millions of
messages and we would like to archive "read" messages.
So I thought I could make use
Hi everyone,
Recently i've also faced similar problem. First i've posted a http://groups.google.com/group/castle-project-users/
browse_thread/thread/f2fc359da7228fca?hl=en"> question to
castleproject-users group, but than after deeper investigation it
turned out to be the NHibernate behavior.
I'm
You should create new post to ask a new question.
There is not actually a NH way, but a "transactional way" is to either
commit the changes or rollback the whole thing. This is usually done
by exception handling.
Just an example in pseudo code:
try
{
cat = Load(id);
cat.Name = "some name";
You mapped the ProductID in the Property:
...
<<== evil
This probably resets the product id with the property value, which is
not initialized.
Consider to have a full reference to product (don't forget to make the
set inverse="true") or just leave it away.
You are working with an
Thanks for replying. I had seen this patch and that is what prompted
me to try the way I did. However, I am using a detached criteria to
build my search query and that's the issue. Looking at the source,
ProjectionCriteria is only present on CriteriaImpl. It is not on
ICriteria or DetachedCriteria
Thanks, I tried. As the post said, I changed the mapping sittings like:
And now NH just execute an DELETE sql as I want. But, I cannot correctly
insert the data now:
var product = new Product { Name = "Product" };
product.Properties.Add(new Property { Name = "P0", SortOrder = 0 });
pro
Other than the fact tha I can find no documentation on this (any links
appreciated), I've found a change from the previous parser: a
statement that is designed to be executed against MSSqlServer (2000 or
2005 dialect) used to accept the function LEFT(value, count). This
now throws a NoViableAltE
你先加载一下这个Product，再删除试一下
From: je...@live.com
To: nhusers@googlegroups.com
Subject: [nhusers] How can I JUST delete an entity using NHibernate
Date: Fri, 14 Aug 2009 17:12:49 +0800
Hello,
I'm a new for NH and I met the problem of "how can I delete an entity". For
example, I've got two entit
My first message here, so hello :) I am very new to NHibernate, but I
like it already.
> The "normal" solution for unexpected updates is: if the business logic
> does not want to have something changed, it should not change it.
I have a question what is the "NHibernate way" of doing this simple
Try
Product product = session.Load(1);
session.Delete(product);
This should actually only create a proxy for the Product 8assuming you
are using lazy loading). Then you can remove it.
then you can use on-delete in the mapping to let the database clean up
referenced records:
http://vanryswyckjan
I just hoped that this obvious coding error speaks for itself.
I think I understand what you mean. The test would express what I
expect the method to do, regardless if this is correct or not.
On 14 Aug., 11:16, Sidar Ok wrote:
> Sorry, I meant what the "solution" was :)
>
> When you find the i
Sorry, I meant what the "solution" was :)
When you find the issue, it is nice to submit a patch, but what is nicer is
to explain what the patch is supposed to do. This will help to the commiter
who is reviewing your page on determining what your aim was and validating
your patch, therefore it will
I posted a testcase to the nhcontrib group.
http://groups.google.com/group/nhcdevs/browse_thread/thread/3c0c1bd77d27f2fd
Things fail when calling
session.Delete("from Foo foo where foo.ModuleId = :Id", m.ModuleId,
NHibernate.NHibernateUtil.Int32);
with stacktrace (InnerException!)
at NHibernate.P
Hello,
I'm a new for NH and I met the problem of "how can I delete an entity". For
example, I've got two entity with an one-to-many association.
Here's the sql to build the table (omit the association):
CREATE TABLE [dbo].[Property](
[PropertyID] [int] IDENTITY(1,1) NOT NULL,
[ProductID]
I explain the problem we encountered in the issue. The patch is
intended to fix it :-)
I don't know how to write a sensible test for this. Of course I can
create two NativeSQLQuerySpecification instances with the same sql
string and different instances of querySpaces, and show that Equals
returns
I wouldn't build dtos after the commit, because you can't use lazy
loading then.
Flush should actually synchronize all the changes. So I'm also
wondering ...
On 13 Aug., 22:42, Luke Bakken wrote:
> Hello everyone,
>
> Just wanted to check that this is expected behavior in NHibernate. I
> have s
Would you mind a sentence of explanation on what the problem was and what
this patch is intended to achieve ? (As I don't see any tests there)
On Fri, Aug 14, 2009 at 9:54 AM, Stefan Steinegger <
stefan.steineg...@bluewin.ch> wrote:
>
> We found the problem, I posted a patch:
>
> http://nhjira.ko
We found the problem, I posted a patch:
http://nhjira.koah.net/browse/NH-1931
On 7 Aug., 10:15, Stefan Steinegger
wrote:
> Currently we are doing long running tests on our system. After a
> couple or hours, the system suddenly hangs on a call to the NH
> session. I don't know if this is a NH pr
I'm still not sure if you aren't using NH for a case it has never been
designed for.
Just to make it clear: every call to NH is not persistence ignorance.
Only calls to the entities are (changing the data).
IMO, it is a very bad idea to change the order how objects get
persisted. In your case, i
Hello!
Maybe you found this on your own by now but anyway
Look on this
http://nhjira.koah.net/browse/NH-1280
and in the Nhibernate.Test project on the same corresponding test
On Aug 10, 7:56 pm, imm102 wrote:
> Hi,
>
> I just upgraded to 2.1.0 and ProjectionCriteria is now no where to be
> se
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