<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
         <section name="hibernate-configuration" type="NHibernate.Cfg.ConfigurationSectionHandler, NHibernate"/>
          <section name="syscache" type="NHibernate.Caches.SysCache.SysCacheSectionHandler, NHibernate.Caches.SysCache" requirePermission="false"/>
</configSections>

<hibernate-configuration  xmlns="urn:nhibernate-configuration-2.2" >
<session-factory>
        <property name="connection.provider">NHibernate.Connection.DriverConnectionProvider</property>
      <property name="dialect">NHibernate.Dialect.MsSql2005Dialect</property>
      <property name="connection.driver_class">NHibernate.Driver.SqlClientDriver</property>
      <property name="connection.connection_string_name">LocalSqlServer</property>
      <property name="show_sql">false</property>
      <property name="hbm2ddl.keywords">none</property>
      <property name="cache.use_second_level_cache">true</property>
      <property name="cache.use_query_cache" >true</property>      
      <property name="cache.provider_class">NHibernate.Caches.SysCache.SysCacheProvider, NHibernate.Caches.SysCache</property>
</session-factory>
</hibernate-configuration>

<syscache>
       <cache region="LongExpire" expiration="3600" priority="5"/>
       <cache region="ShortExpire" expiration="600" priority="3"/>    
</syscache>
</configuration>

<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" assembly="Core.Domain" namespace="Core.Domain.Model">
  <class name="Organization" table="Core_Enterprise_Organization">
    <cache usage="nonstrict-read-write" region="ShortExpire"/>                  
    <id name="Id" >
      <generator/>
    </id>
    <version name="Version"/>
    <property name="Title" not-null="true" unique="true"/>
    <property name="Code" not-null="true" unique="true"/>
  </class>
</hibernate-mapping>

<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" assembly="Core.Domain" namespace="Core.Domain.Model">
  <class name="Party" table="Core_Enterprise_Party">  
    <id name="Id" >
      <generator />
    </id>
    <version name="Version"/>
    <property name="Username" unique="true"/>
    <property name="DisplayName" not-null="true"/>
    <bag name="PartyGroups" inverse="true" table="Core_Enterprise_PartyGroup" cascade="all-delete-orphan">      
      <cache usage="nonstrict-read-write" region="ShortExpire"/>
      <key column="Party_id_fk"/>
      <one-to-many/>
    </bag>
  </class>
</hibernate-mapping>

public IList<Organization> Search(QueryOrganizationDto dto)
{
     var q = SessionInstance.Query<Organization>();            

     if (!String.IsNullOrEmpty(dto.Title))
          q = q.Where(x => x.Title.Contains(dto.Title));

     if (!String.IsNullOrEmpty(dto.Code))
          q = q.Where(x => x.Code.Contains(dto.Code));

     q = q.OrderBy(x => x.Title);

      q = q.CacheRegion("ShortExpire").Cacheable(); 
     return q.ToList();
}