| Hi,
 I'm using NHibernate 1.0.2.0, Bamboo.Prevalence 1.4.4.4 and NHibernate.Caches.Prevalence 1.0.2.0.
 
 Here is the mapping:
 
 <?xml version="1.0" encoding="utf-8" ?>
 <hibernate-mapping xmlns="urn:nhibernate-mapping-2.0">
 <class name="NHibernate.Test.Module,NHibernate.Test" table="MODULES">
 <cache usage="read-write"/>
 <id name="Id" column="ID" type="Int32" unsaved-value="0">
 <generator class="native">
 <param name="sequence">MODULES_GENERATOR</param>
 </generator>
 </id>
 <timestamp name="Timestamp" column="`TIME_STAMP`"/>
 <property name="Name" column="`NAME`" type="String" unique="true" length="50" not-null="true"/>
 
 <property name="Disabled" column="`DISABLED`" type="Boolean" not-null="true"/>
 </class>
 </hibernate-mapping>
 
 Here is the nhibernate section in my config file:
 <nhibernate>
 <add key="hibernate.connection.isolation" value="ReadCommitted" />
 <add key="hibernate.dialect" value="NHibernate.Dialect.MsSql2000Dialect" />
 <add key="hibernate.connection.connection_string" value="Server=SKIPPER;Initial Catalog=NHibernate;Integrated Security=SSPI" />
 <add key="hibernate.connection.provider" value="NHibernate.Connection.DriverConnectionProvider" />
 <add key="hibernate.connection.driver_class" value="NHibernate.Driver.SqlClientDriver" />
 <add key="hibernate.query.substitutions" value="true 1, false 0" />
 <add key="hibernate.cache.use_query_cache" value="true" />
 <add key="hibernate.cache.provider_class" value="NHibernate.Caches.Prevalence.PrevalenceCacheProvider, NHibernate.Caches.Prevalence" />
 <add key="prevalenceBase" value="C:\Temp\PrevalenceCache" />
 </nhibernate>
 
 I have created 10 items in MODULES table:
 private static void TestModule()
 {
 try
 {
 using (ISession session = _sessionFactory.OpenSession())
 {
 using (ITransaction tx = session.BeginTransaction())
 {
 for (int i=0; i < 10; i++)
 {							Module module = new Module();
 module.Name = "MyModule " + module.GetHashCode() + " - " + DateTime.Now.ToString();
 module.Disabled = true;
 session.Save(module);
 _log.Debug("Module created " + module.Id);
 }
 tx.Commit();
 }
 }
 }
 catch (Exception ex)
 {_log.Fatal(ex);}
 }
 
 I try to test the Prevalence Cache:
 private static void TestPrevalenceCache()
 {
 try
 {
 using (ISession session = _sessionFactory.OpenSession())
 {
 try
 {
 ICriteria criteria = session.CreateCriteria(typeof(Module));
 ICriterion criterion = new GtExpression("Timestamp", DateTime.Now.AddDays(-1));
 criteria.Add(criterion);
 criteria.SetCacheable(true);
 IList items = criteria.List();
 _log.Debug("Number of Modules " + items.Count);
 foreach (Module module in items)
 _log.Debug(module.Id +  " - " + module.Name);
 }
 catch (Exception ex)
 {
 _log.Error(ex);
 }
 }
 }
 catch (Exception ex)
 {_log.Error(ex);}
 }
 
 Here is the stack trace generated:
 
 2006-04-20 08:25:23,705 [4160] DEBUG NHibernate.Cache.ReadWriteCache - Caching: 1
 2006-04-20 08:25:23,705 [4160] DEBUG NHibernate.Caches.Prevalence.PrevalenceCache - Fetching object 'NHibernate-Cache:NHibernate.Test.Module:1@1' from the cache.
 2006-04-20 08:25:23,725 [4160] DEBUG NHibernate.Caches.Prevalence.PrevalenceCache - setting value Item{version=4/20/2006 8:25:22 AM,freshTimestamp=4692056161177600} for key NHibernate-Cache:NHibernate.Test.Module:1@1
 2006-04-20 08:25:23,735 [4160] DEBUG NHibernate.Cache.ReadWriteCache - Cached: 1
 2006-04-20 08:25:23,735 [4160] DEBUG NHibernate.Impl.SessionImpl - done materializing entity [NHibernate.Test.Module#1]
 2006-04-20 08:25:23,735 [4160] DEBUG NHibernate.Impl.SessionImpl - resolving associations for: [NHibernate.Test.Module#2]
 2006-04-20 08:25:23,735 [4160] DEBUG NHibernate.Impl.SessionImpl - adding entity to second-level cache [NHibernate.Test.Module#2]
 2006-04-20 08:25:23,735 [4160] DEBUG NHibernate.Cache.ReadWriteCache - Caching: 2
 2006-04-20 08:25:23,735 [4160] DEBUG NHibernate.Caches.Prevalence.PrevalenceCache - Fetching object 'NHibernate-Cache:NHibernate.Test.Module:2@2' from the cache.
 2006-04-20 08:25:23,735 [4160] DEBUG NHibernate.Caches.Prevalence.PrevalenceCache - setting value Item{version=4/20/2006 8:25:22 AM,freshTimestamp=4692056161218560} for key NHibernate-Cache:NHibernate.Test.Module:2@2
 2006-04-20 08:25:23,745 [4160] DEBUG NHibernate.Cache.ReadWriteCache - Cached: 2
 2006-04-20 08:25:23,745 [4160] DEBUG NHibernate.Impl.SessionImpl - done materializing entity [NHibernate.Test.Module#2]
 2006-04-20 08:25:23,745 [4160] DEBUG NHibernate.Impl.SessionImpl - resolving associations for: [NHibernate.Test.Module#3]
 2006-04-20 08:25:23,745 [4160] DEBUG NHibernate.Impl.SessionImpl - adding entity to second-level cache [NHibernate.Test.Module#3]
 2006-04-20 08:25:23,745 [4160] DEBUG NHibernate.Cache.ReadWriteCache - Caching: 3
 2006-04-20 08:25:23,745 [4160] DEBUG NHibernate.Caches.Prevalence.PrevalenceCache - Fetching object 'NHibernate-Cache:NHibernate.Test.Module:3@3' from the cache.
 2006-04-20 08:25:23,755 [4160] DEBUG NHibernate.Caches.Prevalence.PrevalenceCache - setting value Item{version=4/20/2006 8:25:22 AM,freshTimestamp=4692056161300480} for key NHibernate-Cache:NHibernate.Test.Module:3@3
 2006-04-20 08:25:23,765 [4160] DEBUG NHibernate.Cache.ReadWriteCache - Cached: 3
 2006-04-20 08:25:23,765 [4160] DEBUG NHibernate.Impl.SessionImpl - done materializing entity [NHibernate.Test.Module#3]
 2006-04-20 08:25:23,765 [4160] DEBUG NHibernate.Impl.SessionImpl - resolving associations for: [NHibernate.Test.Module#4]
 2006-04-20 08:25:23,765 [4160] DEBUG NHibernate.Impl.SessionImpl - adding entity to second-level cache [NHibernate.Test.Module#4]
 2006-04-20 08:25:23,765 [4160] DEBUG NHibernate.Cache.ReadWriteCache - Caching: 4
 2006-04-20 08:25:23,765 [4160] DEBUG NHibernate.Caches.Prevalence.PrevalenceCache - Fetching object 'NHibernate-Cache:NHibernate.Test.Module:4@4' from the cache.
 2006-04-20 08:25:23,775 [4160] DEBUG NHibernate.Caches.Prevalence.PrevalenceCache - setting value Item{version=4/20/2006 8:25:22 AM,freshTimestamp=4692056161382400} for key NHibernate-Cache:NHibernate.Test.Module:4@4
 2006-04-20 08:25:23,785 [4160] DEBUG NHibernate.Cache.ReadWriteCache - Cached: 4
 2006-04-20 08:25:23,785 [4160] DEBUG NHibernate.Impl.SessionImpl - done materializing entity [NHibernate.Test.Module#4]
 2006-04-20 08:25:23,785 [4160] DEBUG NHibernate.Impl.SessionImpl - resolving associations for: [NHibernate.Test.Module#5]
 2006-04-20 08:25:23,785 [4160] DEBUG NHibernate.Impl.SessionImpl - adding entity to second-level cache [NHibernate.Test.Module#5]
 2006-04-20 08:25:23,785 [4160] DEBUG NHibernate.Cache.ReadWriteCache - Caching: 5
 2006-04-20 08:25:23,785 [4160] DEBUG NHibernate.Caches.Prevalence.PrevalenceCache - Fetching object 'NHibernate-Cache:NHibernate.Test.Module:5@5' from the cache.
 2006-04-20 08:25:23,795 [4160] DEBUG NHibernate.Caches.Prevalence.PrevalenceCache - setting value Item{version=4/20/2006 8:25:22 AM,freshTimestamp=4692056161464320} for key NHibernate-Cache:NHibernate.Test.Module:5@5
 2006-04-20 08:25:23,805 [4160] DEBUG NHibernate.Cache.ReadWriteCache - Cached: 5
 2006-04-20 08:25:23,805 [4160] DEBUG NHibernate.Impl.SessionImpl - done materializing entity [NHibernate.Test.Module#5]
 2006-04-20 08:25:23,805 [4160] DEBUG NHibernate.Impl.SessionImpl - resolving associations for: [NHibernate.Test.Module#6]
 2006-04-20 08:25:23,805 [4160] DEBUG NHibernate.Impl.SessionImpl - adding entity to second-level cache [NHibernate.Test.Module#6]
 2006-04-20 08:25:23,805 [4160] DEBUG NHibernate.Cache.ReadWriteCache - Caching: 6
 2006-04-20 08:25:23,805 [4160] DEBUG NHibernate.Caches.Prevalence.PrevalenceCache - Fetching object 'NHibernate-Cache:NHibernate.Test.Module:6@6' from the cache.
 2006-04-20 08:25:23,825 [4160] DEBUG NHibernate.Caches.Prevalence.PrevalenceCache - setting value Item{version=4/20/2006 8:25:22 AM,freshTimestamp=4692056161587200} for key NHibernate-Cache:NHibernate.Test.Module:6@6
 2006-04-20 08:25:23,835 [4160] DEBUG NHibernate.Cache.ReadWriteCache - Cached: 6
 2006-04-20 08:25:23,835 [4160] DEBUG NHibernate.Impl.SessionImpl - done materializing entity [NHibernate.Test.Module#6]
 2006-04-20 08:25:23,835 [4160] DEBUG NHibernate.Impl.SessionImpl - resolving associations for: [NHibernate.Test.Module#7]
 2006-04-20 08:25:23,835 [4160] DEBUG NHibernate.Impl.SessionImpl - adding entity to second-level cache [NHibernate.Test.Module#7]
 2006-04-20 08:25:23,835 [4160] DEBUG NHibernate.Cache.ReadWriteCache - Caching: 7
 2006-04-20 08:25:23,835 [4160] DEBUG NHibernate.Caches.Prevalence.PrevalenceCache - Fetching object 'NHibernate-Cache:NHibernate.Test.Module:7@7' from the cache.
 2006-04-20 08:25:23,845 [4160] DEBUG NHibernate.Caches.Prevalence.PrevalenceCache - setting value Item{version=4/20/2006 8:25:22 AM,freshTimestamp=4692056161669120} for key NHibernate-Cache:NHibernate.Test.Module:7@7
 2006-04-20 08:25:23,845 [4160] DEBUG NHibernate.Cache.ReadWriteCache - Cached: 7
 2006-04-20 08:25:23,845 [4160] DEBUG NHibernate.Impl.SessionImpl - done materializing entity [NHibernate.Test.Module#7]
 2006-04-20 08:25:23,845 [4160] DEBUG NHibernate.Impl.SessionImpl - resolving associations for: [NHibernate.Test.Module#8]
 2006-04-20 08:25:23,845 [4160] DEBUG NHibernate.Impl.SessionImpl - adding entity to second-level cache [NHibernate.Test.Module#8]
 2006-04-20 08:25:23,845 [4160] DEBUG NHibernate.Cache.ReadWriteCache - Caching: 8
 2006-04-20 08:25:23,845 [4160] DEBUG NHibernate.Caches.Prevalence.PrevalenceCache - Fetching object 'NHibernate-Cache:NHibernate.Test.Module:8@8' from the cache.
 2006-04-20 08:25:23,855 [4160] DEBUG NHibernate.Caches.Prevalence.PrevalenceCache - setting value Item{version=4/20/2006 8:25:22 AM,freshTimestamp=4692056161710080} for key NHibernate-Cache:NHibernate.Test.Module:8@8
 2006-04-20 08:25:23,865 [4160] DEBUG NHibernate.Cache.ReadWriteCache - Cached: 8
 2006-04-20 08:25:23,865 [4160] DEBUG NHibernate.Impl.SessionImpl - done materializing entity [NHibernate.Test.Module#8]
 2006-04-20 08:25:23,865 [4160] DEBUG NHibernate.Impl.SessionImpl - resolving associations for: [NHibernate.Test.Module#9]
 2006-04-20 08:25:23,865 [4160] DEBUG NHibernate.Impl.SessionImpl - adding entity to second-level cache [NHibernate.Test.Module#9]
 2006-04-20 08:25:23,865 [4160] DEBUG NHibernate.Cache.ReadWriteCache - Caching: 9
 2006-04-20 08:25:23,865 [4160] DEBUG NHibernate.Caches.Prevalence.PrevalenceCache - Fetching object 'NHibernate-Cache:NHibernate.Test.Module:9@9' from the cache.
 2006-04-20 08:25:23,876 [4160] DEBUG NHibernate.Caches.Prevalence.PrevalenceCache - setting value Item{version=4/20/2006 8:25:22 AM,freshTimestamp=4692056161796096} for key NHibernate-Cache:NHibernate.Test.Module:9@9
 2006-04-20 08:25:23,886 [4160] DEBUG NHibernate.Cache.ReadWriteCache - Cached: 9
 2006-04-20 08:25:23,886 [4160] DEBUG NHibernate.Impl.SessionImpl - done materializing entity [NHibernate.Test.Module#9]
 2006-04-20 08:25:23,886 [4160] DEBUG NHibernate.Impl.SessionImpl - resolving associations for: [NHibernate.Test.Module#10]
 2006-04-20 08:25:23,886 [4160] DEBUG NHibernate.Impl.SessionImpl - adding entity to second-level cache [NHibernate.Test.Module#10]
 2006-04-20 08:25:23,886 [4160] DEBUG NHibernate.Cache.ReadWriteCache - Caching: 10
 2006-04-20 08:25:23,886 [4160] DEBUG NHibernate.Caches.Prevalence.PrevalenceCache - Fetching object 'NHibernate-Cache:NHibernate.Test.Module:10@10' from the cache.
 2006-04-20 08:25:23,896 [4160] DEBUG NHibernate.Caches.Prevalence.PrevalenceCache - setting value Item{version=4/20/2006 8:25:22 AM,freshTimestamp=4692056161878016} for key NHibernate-Cache:NHibernate.Test.Module:10@10
 2006-04-20 08:25:23,896 [4160] DEBUG NHibernate.Cache.ReadWriteCache - Cached: 10
 2006-04-20 08:25:23,896 [4160] DEBUG NHibernate.Impl.SessionImpl - done materializing entity [NHibernate.Test.Module#10]
 2006-04-20 08:25:23,896 [4160] DEBUG NHibernate.Impl.SessionImpl - initializing non-lazy collections
 2006-04-20 08:25:23,896 [4160] DEBUG NHibernate.Cache.StandardQueryCache - caching query results in region: NHibernate.Cache.StandardQueryCache
 2006-04-20 08:25:23,906 [4160] DEBUG NHibernate.Caches.Prevalence.PrevalenceCache - setting value System.Collections.ArrayList for key NHibernate-Cache:NHibernate.Cache.StandardQueryCache:sql: SELECT this.ID as ID0_, this.[DISABLED] as y4_0_, this.[TIME_STAMP] as y2_0_, this.[NAME] as y3_0_ FROM MODULES this WHERE this.[TIME_STAMP] > :this.[TIME_STAMP]; parameters: 4/19/2006 8:25:23 AM, ; first row: 0@1375269394
 2006-04-20 08:25:25,197 [4160] DEBUG NHibernate.Util.ADOExceptionReporter - Unable to perform find
 System.Runtime.Serialization.SerializationException: The type NHibernate.Type.TimestampType in Assembly NHibernate, Version=1.0.2.0, Culture=neutral, PublicKeyToken=154fdcb44c4484fc is not marked as serializable.
 
 Server stack trace:
 at System.Runtime.Serialization.FormatterServices.InternalGetSerializableMembers(RuntimeType type, Boolean excludeNonSerializable)
 at System.Runtime.Serialization.FormatterServices.GetSerializableMembers(Type type, StreamingContext context)
 at System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.InitMemberInfo()
 at System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.InitSerialize(Object obj, ISurrogateSelector surrogateSelector, StreamingContext context, SerObjectInfoInit serObjectInfoInit, IFormatterConverter converter)
 at System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.Serialize(Object obj, ISurrogateSelector surrogateSelector, StreamingContext context, SerObjectInfoInit serObjectInfoInit, IFormatterConverter converter)
 at System.Runtime.Serialization.Formatters.Binary.ObjectWriter.Serialize(Object graph, Header[] inHeaders, __BinaryWriter serWriter, Boolean fCheck)
 at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize(Stream serializationStream, Object graph, Header[] headers, Boolean fCheck)
 at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize(Stream serializationStream, Object graph, Header[] headers)
 at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize(Stream serializationStream, Object graph)
 at Bamboo.Prevalence.Implementation.CommandLogWriter.WriteCommand(ICommand command)
 at Bamboo.Prevalence.PrevalenceEngine.DoExecuteCommand(ICommand command)
 at Bamboo.Prevalence.PrevalenceEngine.ExecuteCommand(ICommand command)
 at Bamboo.Prevalence.Implementation.PrevalentSystemProxy.ExecuteCommand(IMethodCallMessage call)
 at Bamboo.Prevalence.Implementation.PrevalentSystemProxy.Invoke(IMessage msg)
 
 Exception rethrown at [0]:
 at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
 at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
 at NHibernate.Caches.Prevalence.CacheSystem.Add(Object key, Object value)
 at NHibernate.Caches.Prevalence.PrevalenceCache.Put(Object key, Object value)
 at NHibernate.Cache.StandardQueryCache.Put(QueryKey key, IType[] returnTypes, IList result, ISessionImplementor session)
 at NHibernate.Loader.Loader.List(ISessionImplementor session, QueryParameters queryParameters, ISet querySpaces, IType[] resultTypes)
 at NHibernate.Loader.CriteriaLoader.List(ISessionImplementor session)
 at NHibernate.Impl.SessionImpl.Find(CriteriaImpl criteria)
 2006-04-20 08:25:25,207 [4160] WARN  NHibernate.Util.ADOExceptionReporter - System.Runtime.Serialization.SerializationException: The type NHibernate.Type.TimestampType in Assembly NHibernate, Version=1.0.2.0, Culture=neutral, PublicKeyToken=154fdcb44c4484fc is not marked as serializable.
 
 Server stack trace:
 at System.Runtime.Serialization.FormatterServices.InternalGetSerializableMembers(RuntimeType type, Boolean excludeNonSerializable)
 at System.Runtime.Serialization.FormatterServices.GetSerializableMembers(Type type, StreamingContext context)
 at System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.InitMemberInfo()
 at System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.InitSerialize(Object obj, ISurrogateSelector surrogateSelector, StreamingContext context, SerObjectInfoInit serObjectInfoInit, IFormatterConverter converter)
 at System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.Serialize(Object obj, ISurrogateSelector surrogateSelector, StreamingContext context, SerObjectInfoInit serObjectInfoInit, IFormatterConverter converter)
 at System.Runtime.Serialization.Formatters.Binary.ObjectWriter.Serialize(Object graph, Header[] inHeaders, __BinaryWriter serWriter, Boolean fCheck)
 at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize(Stream serializationStream, Object graph, Header[] headers, Boolean fCheck)
 at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize(Stream serializationStream, Object graph, Header[] headers)
 at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize(Stream serializationStream, Object graph)
 at Bamboo.Prevalence.Implementation.CommandLogWriter.WriteCommand(ICommand command)
 at Bamboo.Prevalence.PrevalenceEngine.DoExecuteCommand(ICommand command)
 at Bamboo.Prevalence.PrevalenceEngine.ExecuteCommand(ICommand command)
 at Bamboo.Prevalence.Implementation.PrevalentSystemProxy.ExecuteCommand(IMethodCallMessage call)
 at Bamboo.Prevalence.Implementation.PrevalentSystemProxy.Invoke(IMessage msg)
 
 Exception rethrown at [0]:
 at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
 at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
 at NHibernate.Caches.Prevalence.CacheSystem.Add(Object key, Object value)
 at NHibernate.Caches.Prevalence.PrevalenceCache.Put(Object key, Object value)
 at NHibernate.Cache.StandardQueryCache.Put(QueryKey key, IType[] returnTypes, IList result, ISessionImplementor session)
 at NHibernate.Loader.Loader.List(ISessionImplementor session, QueryParameters queryParameters, ISet querySpaces, IType[] resultTypes)
 at NHibernate.Loader.CriteriaLoader.List(ISessionImplementor session)
 at NHibernate.Impl.SessionImpl.Find(CriteriaImpl criteria)
 2006-04-20 08:25:25,207 [4160] ERROR NHibernate.Util.ADOExceptionReporter - The type NHibernate.Type.TimestampType in Assembly NHibernate, Version=1.0.2.0, Culture=neutral, PublicKeyToken=154fdcb44c4484fc is not marked as serializable.
 2006-04-20 08:25:25,207 [4160] ERROR NHibernate.Test.TestCache - NHibernate.ADOException: Unable to perform find ---> System.Runtime.Serialization.SerializationException: The type NHibernate.Type.TimestampType in Assembly NHibernate, Version=1.0.2.0, Culture=neutral, PublicKeyToken=154fdcb44c4484fc is not marked as serializable.
 
 Server stack trace:
 at System.Runtime.Serialization.FormatterServices.InternalGetSerializableMembers(RuntimeType type, Boolean excludeNonSerializable)
 at System.Runtime.Serialization.FormatterServices.GetSerializableMembers(Type type, StreamingContext context)
 at System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.InitMemberInfo()
 at System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.InitSerialize(Object obj, ISurrogateSelector surrogateSelector, StreamingContext context, SerObjectInfoInit serObjectInfoInit, IFormatterConverter converter)
 at System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.Serialize(Object obj, ISurrogateSelector surrogateSelector, StreamingContext context, SerObjectInfoInit serObjectInfoInit, IFormatterConverter converter)
 at System.Runtime.Serialization.Formatters.Binary.ObjectWriter.Serialize(Object graph, Header[] inHeaders, __BinaryWriter serWriter, Boolean fCheck)
 at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize(Stream serializationStream, Object graph, Header[] headers, Boolean fCheck)
 at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize(Stream serializationStream, Object graph, Header[] headers)
 at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize(Stream serializationStream, Object graph)
 at Bamboo.Prevalence.Implementation.CommandLogWriter.WriteCommand(ICommand command)
 at Bamboo.Prevalence.PrevalenceEngine.DoExecuteCommand(ICommand command)
 at Bamboo.Prevalence.PrevalenceEngine.ExecuteCommand(ICommand command)
 at Bamboo.Prevalence.Implementation.PrevalentSystemProxy.ExecuteCommand(IMethodCallMessage call)
 at Bamboo.Prevalence.Implementation.PrevalentSystemProxy.Invoke(IMessage msg)
 
 Exception rethrown at [0]:
 at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
 at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
 at NHibernate.Caches.Prevalence.CacheSystem.Add(Object key, Object value)
 at NHibernate.Caches.Prevalence.PrevalenceCache.Put(Object key, Object value)
 at NHibernate.Cache.StandardQueryCache.Put(QueryKey key, IType[] returnTypes, IList result, ISessionImplementor session)
 at NHibernate.Loader.Loader.List(ISessionImplementor session, QueryParameters queryParameters, ISet querySpaces, IType[] resultTypes)
 at NHibernate.Loader.CriteriaLoader.List(ISessionImplementor session)
 at NHibernate.Impl.SessionImpl.Find(CriteriaImpl criteria)
 --- End of inner exception stack trace ---
 at NHibernate.Impl.SessionImpl.Find(CriteriaImpl criteria)
 at NHibernate.Impl.CriteriaImpl.List()
 at NHibernate.Test.TestCache.TestPrevalenceCache() in e:\my projects\csharp\misc\nhibernate\testcache\testcache.cs:line 130
 2006-04-20 08:25:25,207 [4160] DEBUG NHibernate.Impl.SessionImpl - running ISession.Dispose()
 2006-04-20 08:25:25,207 [4160] DEBUG NHibernate.Impl.BatcherImpl - running BatcherImpl.Dispose(true)
 2006-04-20 08:25:25,207 [4160] DEBUG NHibernate.Connection.ConnectionProvider - Closing connection
 
 I'm using SQL Server 2000 SP4.
 
 What am I missing here??
 
 Thanks.
 
 Ciao,
 Richard.
 
 
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