Hibernate Community - Forums > NHibernate Users https://forum.hibernate.org/index.php Hibernate Community Forums en-gb Copyright (c) 2003 Hibernate Community webmaster@hibernate.org (Hibernate Community) webmaster@hibernate.org (Hibernate Community) Tue, 14 Jul 2020 00:00:00 -0500 Tue, 14 Jul 2020 08:22:55 -0500 MSSTI RSS Feed 2.0 Version 1.0.9 - (C) 2008-2009 leviatan21 - http://www.mssti.com/ Hibernate Community - Forums > NHibernate Users https://forum.hibernate.org/styles/hibernate/imageset/site_logo.gif https://forum.hibernate.org/index.php 60 NHibernate Users | Optimistic locking failed https://forum.hibernate.org/viewtopic.php?p=2463639#p2463639
Have a parent ITEM object and child STOREROOM object. parent to child is many-to-one and hibernate mapping file has cascade=all.

Have JMS fire each item record and item inser or update storeroom record. Since each JMS record is a transaction and commits happens at the end of each item, it looks like multiple thread is accessing
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Have a parent ITEM object and child STOREROOM object. parent to child is many-to-one and hibernate mapping file has cascade=all.

Have JMS fire each item record and item inser or update storeroom record. Since each JMS record is a transaction and commits happens at the end of each item, it looks like multiple thread is accessing
...]]> https://forum.hibernate.org/viewtopic.php?p=2463639#p2463639 NHibernate Users | Re: Identity column - "Cannot update identity column" https://forum.hibernate.org/viewtopic.php?p=2463477#p2463477 ]]> https://forum.hibernate.org/viewtopic.php?p=2463477#p2463477 NHibernate Users | Migration from JoinedSubclass to UnionSubclass https://forum.hibernate.org/viewtopic.php?p=2463373#p2463373
Due to a performance issue we are planning to migrate our structure from "JoinedSubclasses" to "UnionSubclasses". We have severals classes (about 50) which are derived from one baseclass and mapped as JoinedSubclass. And now we want to migrate these classes to "UnionSubclass-mapping". Has anybody an idea or experience how to migrate it?

Any help would be appreciated.
Daywalker
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Due to a performance issue we are planning to migrate our structure from "JoinedSubclasses" to "UnionSubclasses". We have severals classes (about 50) which are derived from one baseclass and mapped as JoinedSubclass. And now we want to migrate these classes to "UnionSubclass-mapping". Has anybody an idea or experience how to migrate it?

Any help would be appreciated.
Daywalker]]> https://forum.hibernate.org/viewtopic.php?p=2463373#p2463373 NHibernate Users | How to map foreign key constraints https://forum.hibernate.org/viewtopic.php?p=2463196#p2463196
My Product table have one foreign key CategoryId . I don't know how to Map this table & how to insert CategoryId into Product Table. I am Posting my Code but It gives me runtime error.

Products.hbm.xml file

Code:
  <?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" namespace="Test_NHibernate_Join_Tables" assembly="Test_NHibernate_Join_Tables"
                  >
  <class

...
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My Product table have one foreign key CategoryId . I don't know how to Map this table & how to insert CategoryId into Product Table. I am Posting my Code but It gives me runtime error.

Products.hbm.xml file

Code:
  <?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" namespace="Test_NHibernate_Join_Tables" assembly="Test_NHibernate_Join_Tables"
                  >
  <class

...]]> https://forum.hibernate.org/viewtopic.php?p=2463196#p2463196 NHibernate Users | very ¿simple? question https://forum.hibernate.org/viewtopic.php?p=2457922#p2457922
Lets suppose that I have a mapping of a Sql View

<class name="Namespace.ViewName, Assembly" table="ViewName">

<id name="MyColumnIdOfThisView"column="[MyColumnIdOfThisView] " type="System.Guid">
<generator class="assigned"/>
</id>
<property name="AForeignKey"column="[AForeignKey] " access="field.pascalcase-underscore"
...
]]>
Lets suppose that I have a mapping of a Sql View

<class name="Namespace.ViewName, Assembly" table="ViewName">

<id name="MyColumnIdOfThisView"column="[MyColumnIdOfThisView] " type="System.Guid">
<generator class="assigned"/>
</id>
<property name="AForeignKey"column="[AForeignKey] " access="field.pascalcase-underscore"
...]]> https://forum.hibernate.org/viewtopic.php?p=2457922#p2457922 NHibernate Users | Re: using c# doubles with SQL Server "floats" https://forum.hibernate.org/viewtopic.php?p=2457769#p2457769 nils.andresen wrote:

Hi.
I am using NH to map c#-double values into SQL Server 2005 as floats. Everything works perfectly fine. However, recently I tried running the SchemaValidator.

SchemaValidator fails:

Quote:
Found: float, Expected DOUBLE PRECISION


Creating the tables usingDOUBLE PRECISION works, but SQL Server will report the columns asfloat

Am I missing something here, or is this a (minor) bug in NHibernates type-Mapping?

Nils
xact answer , try look this c# http://csharp.net-informations.comhttp://csharp.net-informations.com