NHibernate version:

NHibernate-1.2.1.GA-debug

Mapping documents:

Many to many relationship. I proved it works with HQL and a IQuery.

Code between sessionFactory.openSession() and session.close():

String text = "test";

Lucene.Net.Analysis.Analyzer analyzer = new Lucene.Net.Analysis.SimpleAnalyzer();

MultiFieldQueryParser parser = new MultiFieldQueryParser(new String[] { "Name" }, analyzer);
Query queryObj = parser.Parse(text);

ISessionFactory sessionFactory = NHibernateHelper.GetSessionFactory();
Configuration config = new Configuration();
SearchFactory.Initialize(config,sessionFactory);

ISession session = sessionFactory.OpenSession(new SearchInterceptor());

IFullTextSession textSession = NHibernate.Search.Search.CreateFullTextSession(session);

IQuery nhQuery = textSession.CreateFullTextQuery(queryObj, new Type[] { typeof(Keyword) });

IList<Keyword> keywords = nhQuery.List<Keyword>();

Error message:

[HibernateException: Not a mapped entity: Stuff.Other.Keyword]

Question:

Trying to use NHibernate.Search and Lucene.Net together. Has anyone come across this error? I can't find any documentation on the error message and can't seem to find a solution. If you want more information i am happy to provide it.

I don't know about the N Version of Hibernate and Lucene, but it sounds like the Class wasn't mapped properly. Maybe the entry in hibernate.cfg.xml is missing?

Jens

Thanks for the reply, I can't see a mistake in my mapping file though, maybe you can see it?

Mapping File

<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" default-lazy="true" namespace="Stuff.Other" assembly="Stuff">
<class name="Keyword,Stuff" table="Keyword" lazy="true">

<!-- Primary Key(s) -->
<id name="Id" unsaved-value="0">
<generator class="native"/>
</id>

<!-- Properties -->
<property name="Name" not-null="true" length="50" />
<property name="Modified" not-null="true" />

<!-- One-To-Many relations -->
<bag name="Categories" lazy="false" table="CategoryKey" cascade="all" inverse="true">
<key column="Id"/>
<many-to-many class="Category" column="categoryId"/>
</bag>

</class>
</hibernate-mapping>

<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" default-lazy="true" namespace="Stuff.Other" assembly="Stuff">
<class name="Category,Stuff" table="Category" lazy="true">

<!-- Primary Key(s) -->
<id name="Id" unsaved-value="0">
<generator class="native"/>
</id>

<!-- Properties -->
<property name="ParentId" />
<property name="Modified" not-null="true" />
<property name="Name" not-null="true" length="80" />

<!-- One-To-Many relations -->
<bag name="Keywords" lazy="false" cascade="none" table="CategoryKey" inverse="true" >
<key column="Id"/>
<many-to-many class="Keyword" column="keywordId"/>
</bag>

</class>
</hibernate-mapping>


Classes

[Indexed]
public class Keyword {
public Keyword() { }

[DocumentId]
protected int mId;
public virtual int Id {
get { return mId; }
set { mId = value; }
}

protected DateTime mModified;
public virtual DateTime Modified {
get { return mModified; }
set { mModified = value; }
}

[Field(Index.Tokenized, Store = Store.Yes)]
protected String mName;
public virtual String Name {
get { return mName; }
set { mName = value; }
}

[Field(Index.Tokenized, Store = Store.Yes)]
protected IList<Category> mCategories;
public virtual IList<Category> Categories {
get { return mCategories; }
set { mCategories = value; }
}
}

[Indexed]
public class Category {
public Category() { }

[DocumentId]
protected int mId;
public virtual int Id {
get { return mId; }
set { mId = value; }
}

protected DateTime mModified;
public virtual DateTime Modified {
get { return mModified; }
set { mModified = value; }
}


protected int mParentId;
public virtual int ParentId {
get { return mParentId; }
set { mParentId = value; }
}

[Field(Index.Tokenized, Store = Store.Yes)]
protected String mName;
public virtual String Name {
get { return mName; }
set { mName = value; }
}

[Field(Index.Tokenized, Store = Store.Yes)]
protected IList<Keyword> mKeywords;
public virtual IList<Keyword> Keywords{
get { return mKeywords; }
set { mKeywords = value; }
}
protected int mSiteId;
public virtual int SiteId {
get { return mSiteId; }
set { mSiteId = value; }
}
}

If I get it right you are showing the


shouldn't that
<class name="Keyword,Stuff" table="Keyword" lazy="true">
be
<class name="Keyword.Stuff" table="Keyword" lazy="true">

? (dot instead of colon)

You are showing the Keyword.stuff.xml (or similiar I think)

There also should be a hibernate.config.xml referencing the document/class above.

What are you doing in "NHibernateHelper.GetSessionFactory()" ? You're using two different configuration objects for the session and the search factory. Is that intended ?

Here is the nhibernatehelper code although its pretty standard I believe.

public class NHibernateHelper {

private const string CurrentSessionKey = "nhibernate.current_session";
private static readonly ISessionFactory sessionFactory;

static NHibernateHelper() {
sessionFactory = new Configuration().Configure().BuildSessionFactory();
}

public static ISession GetCurrentSession() {
HttpContext context = HttpContext.Current;
ISession currentSession = context.Items[CurrentSessionKey] as ISession;

if (currentSession == null) {
currentSession = sessionFactory.OpenSession();
context.Items[CurrentSessionKey] = currentSession;
}

return currentSession;
}

public static ISessionFactory GetSessionFactory() {
return sessionFactory;
}

Well i am using a web.config so there is no hibernate.cfg.xml. Changing the mapping file like you suggested doesn't work at all. The examples I have been reading all use the SearchFactory.Initialize(config,sessionFactory); line, could this be incorrect? I really appreciate the suggestions as I am struggling to find a solution.

hmmmm ... you add the assemblies/resource files in the config ? Pls post you web.config, too.

Web.config looks like this:

<hibernate-configuration xmlns="urn:nhibernate-configuration-2.2">
<session-factory>
<property name="dialect">NHibernate.Dialect.MsSql7Dialect</property>
<property name="connection.provider">NHibernate.Connection.DriverConnectionProvider</property>
<property name="connection.driver_class">NHibernate.Driver.SqlClientDriver</property>
<property name="connection.connection_string">Server=randomserver;initial catalog=suppliers;User id=stuff;Password=stuff;</property>
<property name="show_sql">true</property>
<property name="hibernate.search.default.directory_provider">NHibernate.Search.Storage.FSDirectoryProvider, NHibernate.Search</property>
<property name="hibernate.search.default.indexBase">~/Index</property>
<mapping assembly="ConfettiCore"/>
</session-factory>

I removed the hibernate.search.default.directory_provider and hibernate.search.default.indexbase. Replacing it with:

config.SetProperty("hibernate.search.default.directory_provider", typeof(RAMDirectoryProvider).AssemblyQualifiedName);
config.SetProperty(NHibernate.Search.Environment.AnalyzerClass, typeof(StopAnalyzer).AssemblyQualifiedName);
config.Configure();

I now get a different error message: Unable to guess IFieldBridge for mKeywords. So I am not sure which approach is correct, although both should have similar effect? Can't find any information on this new error message either.

hmm, I wonder if the problem is this:




You've mapped the property, but assigned the attribute to the field. But I'm not familar with either NHibernate.Search nor Lucene. You can try the user group on google, maybe you find more help there for this specific problem: http://groups.google.com/group/nhusers?hl=en

I changed it to the methods instead of the attributes and i still receive the same error message. I will check out the Google group, thanks.