Application fails to find HBM file

YoavB · **Joined:** Thu Dec 23, 2010 8:46 pm **Posts:** 1

Hi,
This is my first project using NHIbernate and I'm strugling with config issues. This is a bit long, please take a look.

This is my solution structure:
GUI - winform project
ApplicationServer.dll
DatabaseServer.dll
DataEntities.dll

The hbm files are stored in a directory in the DatabaseServer.dll (Database\Mappings)
The domain classes are in the DataEntities.dll

For now I only included only one hbm file. Its build action is set to 'Embedded Resource':

Code:

<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping 
  assembly="DataEntities"
  namespace="Themis.DataEntities"
  xmlns="urn:nhibernate-mapping-2.2" auto-import="true">
  <class name="Project" table="PROJECTS">
    <id name="PK" column="PK" access="nosetter.camelcase">
      <generator class="native"/>
    </id>
    <property name="Name" column="NAME"/>
    <property name="Id" column="ID"/>
    <property name="Description" column="DESCRIPTION"/>
  </class>  
</hibernate-mapping>

The application will use sdf files that the user can switch so all the configuration is done through code. This code is included in DatabaseServer.dll:

Code:

Configuration cfg = new Configuration();
   
cfg.Properties["connection.provider"] = "NHibernate.Connection.DriverConnectionProvider";
cfg.Properties["dialect"] = "NHibernate.Dialect.MsSqlCeDialect";
cfg.Properties["hibernate.connection.driver_class"] = "NHibernate.Driver.SqlServerCeDriver";
cfg.Properties["hibernate.connection.connection_string"] = path;

cfg.AddAssembly(this.GetType().Assembly);
cfg.AddXmlFile("Mappings\\Project.hbm.xml"); ->> ERROR HERE
sessionFactory = cfg.BuildSessionFactory();

An error is thrown when the code is adding the hbm file:

NHibernate.MappingException: Could not configure datastore from file Mappings\Project.hbm.xml ---> System.IO.DirectoryNotFoundException: Could not find a part of the path 'D:\Documents\my documents\Visual Studio 2010\Projects\Application\GUI\bin\Debug\Mappings\Project.hbm.xml'.

Looking in the debug folder under the GUI project, I can see that there is no Mapping folder in it. Why is NHIbernate looking for it. Its supposed to be embedded in the DatabaseServer.dll.

Thanks,
Yoav

uga_08 · **Joined:** Fri Jun 11, 2010 1:48 pm **Posts:** 4

The same happened to me once.

As I couldn't find a solution, I set the path to my mappings in the Web.config, and then accesed it directly on the addXML...

Of course y Had to repeat it for every class y mapped (which is quite annoying).

Regards,

Sebastian

wolli · **Posted:** Tue Jan 04, 2011 3:44 am

You only need one of these lines:

// if mapping file is embedded ressource
cfg.AddAssembly(this.GetType().Assembly);

// if you want to load the file from disc
cfg.AddXmlFile("Mappings\\Project.hbm.xml"); ->> ERROR HERE