Integrating Nhibernate.Search with Nhibernate 2

Question

I have just spent all day attempting to get NHibernate.Search working alongside NHibernate 2.0 and am sorry to say that I have still not managed it. I ran into the problem poste

Answer 1

In order to setup EventListeners, you need to add this code when initializing NHibernate:

NHibernate.Cfg.Configuration cfg = new NHibernate.Cfg.Configuration();
//Load configuration

//Add NHibernate.Search listeners
cfg.SetListener(NHibernate.Event.ListenerType.PostUpdate, new FullTextIndexEventListener());
cfg.SetListener(NHibernate.Event.ListenerType.PostInsert, new FullTextIndexEventListener());
cfg.SetListener(NHibernate.Event.ListenerType.PostDelete, new FullTextIndexEventListener());

var factory = cfg.BuildSessionFactory();

Your web.config/app.config file must be changed in order to include the following:

<configuration>

    <configSections>
        <section name="hibernate-configuration" type="NHibernate.Cfg.ConfigurationSectionHandler, NHibernate" requirePermission="false"/>
        <section name="nhs-configuration" type="NHibernate.Search.Cfg.ConfigurationSectionHandler, NHibernate.Search" requirePermission="false"/>
    </configSections>

    <!-- NHibernate.Search -->
    <nhs-configuration xmlns='urn:nhs-configuration-1.0'>
        <search-factory>
            <property name='hibernate.search.default.directory_provider'>NHibernate.Search.Store.FSDirectoryProvider, NHibernate.Search</property>


            <property name='hibernate.search.default.indexBase'>PATH TO LUCENE.NET STORE</property>

            <property name='hibernate.search.indexing_strategy'>event</property>
        </search-factory>
    </nhs-configuration>

    <appSettings>
        <add key="Lucene.Net.lockdir" value="SAME PATH AS ABOVE" />
    </appSettings>

    ...

And finally: when you create an ISession instance, remember to use this code in order to get an IFullTextSession instead.

IFullTextSession session = Search.CreateFullTextSession(factory.OpenSession());

This should work with Lucene 2.0 and NHibernate 2.0.