When you send your entities over the wire, you better don't inherit
from ActiveRecordBase.
Perhaps this solves your problem.
-Markus
2010/1/3 dylanj <dylancjan...@gmail.com>:
> Hi All,
>
> Sorry if this is a n00b thing to ask - I've only been into DotNet/C#
> for about two weeks.
>
> But basicly what I am trying to do is expose DAO's throught WCF
> services.
>
> The problem is when I try to call the Service from the client I get
> the following exception : Test method
> jTekPos.Client.RemoteProxy.Tests.UserProxy_Fixture.Can_We_Lookup_A_Member
> threw exception: System.ServiceModel.FaultException`1
> [System.ServiceModel.ExceptionDetail]: No persister for: User.
>
> I believe ( from what I have googled ) that it has something to do
> with the Serializer not serializing the references properly, But I
> have spent way to long googling and really need some help now.
>
> My User.cs is defined here :
>
> [code]
> namespace jTekPos.Data.Model
> {
> [Serializable]
> [DataContract]
> [ActiveRecord("usrs")]
> public class User : ActiveRecordBase<User>
> {
> [DataMember]
> [PrimaryKey("user_id")]
> public int UserId { get; set; }
>
> [DataMember]
> [Property("user_name")]
> public String Username { get; set; }
>
> [DataMember]
> [Property("pass_word")]
> public String Password { get; set; }
>
> [DataMember]
> [Property("firstname")]
> public String Firstname { get; set; }
>
> [DataMember]
> [Property("surname")]
> public String Surname { get; set; }
>
> [DataMember]
> [HasAndBelongsToMany(typeof(Role),
> Table = "usr_role_link", ColumnKey = "user_id", ColumnRef
> = "role_id",
> Cascade = ManyRelationCascadeEnum.AllDeleteOrphan, Lazy =
> true)]
> public IList<Role> Roles { get; set; }
> }
> }
> [/code]
>
> My Role.cs is defined here :
> [code]
> namespace jTekPos.Data.Model
> {
> [Serializable]
> [DataContract]
> [ActiveRecord("user_role")]
> public class Role : ActiveRecordBase<Role>
> {
> [DataMember]
> [PrimaryKey("role_id")]
> public int RoleId { get; set; }
>
> [DataMember]
> [Property("role_name")]
> public String RoleName { get; set; }
>
> [DataMember]
> [Property("role_desc")]
> public String RoleDescription { get; set; }
>
> [DataMember]
> [HasAndBelongsToMany(typeof(User),
> Table = "user_role_link", ColumnKey = "role_id", ColumnRef
> = "user_id",
> Inverse = true, Cascade =
> ManyRelationCascadeEnum.SaveUpdate, Lazy = true)]
> public IList<User> Users { get; set; }
>
> [DataMember]
> [HasAndBelongsToMany(typeof(Permission),
> Table = "role_perm_link", ColumnKey = "role_id", ColumnRef
> = "perm_id",
> Cascade = ManyRelationCascadeEnum.AllDeleteOrphan, Lazy =
> true)]
> public IList<Permission> Permissions { get; set; }
> }
> }
> [/code]
>
>
> The DAO that I expose (UserDAO.cs) :
> [code]
> namespace jTekPos.Data.AccessObject
> {
> [ServiceContract(Namespace="www.#####co.za/jTekPos/
> DataAccessObject/User")]
> [ServiceBehavior(IncludeExceptionDetailInFaults=true,
> MaxItemsInObjectGraph=1000)]
> public class UserDao : StandardDao<User>
> {
> [OperationContract]
> [PreserveCircularReferences]
> public virtual User FindUserById( int id )
> {
> return GetSingleResultFromCriteria
> (MakeOneParamSimpleEqCriteria("Id", id));
> }
>
> [OperationContract]
> [PreserveCircularReferences]
> public virtual User FindUserByUsername(String username)
> {
> return GetSingleResultFromCriteria
> (MakeOneParamSimpleEqCriteria("Username", username));
> }
> }
> }
> [/code]
>
> The UserDao extends StandardDAO.cs thats this :
> [code]
>
> namespace jTekPos.Data.AccessObject
> {
> public abstract class StandardDao<T>
> {
> public readonly ISession _Session;
> public T _BaseEntity;
>
> public StandardDao()
> {
> ISessionFactory factory =
> ObjectFactory.GetInstance<ISessionFactory>();
> _Session = factory.OpenSession();
> _BaseEntity = (T)
> typeof(T).GetConstructor(new Type[]{}).Invoke(new
> Object[]{});
> }
>
> public ICriteria MakeCriteria()
> {
> return _Session.CreateCriteria(typeof(T).Name);
> }
>
> public ICriteria MakeOneParamSimpleEqCriteria(String
> PropertyName, Object Value)
> {
> ICriteria crit = MakeCriteria();
> crit.Add(Restrictions.Eq(PropertyName, Value));
> return crit;
> }
>
> public T GetSingleResultFromCriteria(ICriteria iCrit)
> {
> iCrit.SetMaxResults(1);
> IList<T> lst = iCrit.List<T>();
> if (lst == null || lst.Count == 0)
> return default(T);
> return lst[0];
> }
> }
> }
>
> [/code]
>
> I followed an Microsoft article recommending me to create these
> (supposed to help the dataContractSerializer preserver my
> references) :
>
> [b]OpBehaviourPreserveRefs.cs[/b]
> [code]
> public class OpBehaviourPreserveRefs :
> DataContractSerializerOperationBehavior
> {
> public OpBehaviourPreserveRefs ( OperationDescription
> operationDescription) : base(operationDescription) { }
>
> public override XmlObjectSerializer CreateSerializer( Type
> type, string name, string ns, IList<Type> knownTypes)
> {
> return CreateDataContractSerializer(type, name, ns,
> knownTypes);
> }
>
> private static XmlObjectSerializer
> CreateDataContractSerializer( Type type, string name, string ns,
> IList<Type> knownTypes)
> {
> return CreateDataContractSerializer(type, name, ns,
> knownTypes);
> }
>
> public override XmlObjectSerializer CreateSerializer( Type
> type, XmlDictionaryString name, XmlDictionaryString ns, IList<Type>
> knownTypes)
> {
> return new DataContractSerializer(type, name, ns,
> knownTypes, 0x7FFF, false, true, null);
> }
> }
> [/code]
>
> [b]The attribute : [/b]
> [code]
> public class PreserveCircularReferencesAttribute : Attribute,
> IOperationBehavior
> {
> public void AddBindingParameters(OperationDescription
> description, BindingParameterCollection parameters) { }
>
> public void ApplyClientBehavior(OperationDescription
> description, ClientOperation proxy) {
> IOperationBehavior innerBehavior =
> new OpBehaviourPreserveRefs(description);
> innerBehavior.ApplyClientBehavior(description, proxy);
> }
>
> public void ApplyDispatchBehavior(OperationDescription
> description, DispatchOperation dispatch)
> {
> IOperationBehavior innerBehavior =
> new OpBehaviourPreserveRefs(description);
> innerBehavior.ApplyDispatchBehavior(description,
> dispatch);
> }
>
> public void Validate(OperationDescription description) { }
> }
> [/code]
>
> And Then to host these I tried the standard selfHost option, and tried
> the WcfIntegration package from Castle :
>
> [b]IServiceHostCache.cs[/b]
> [code]
> public abstract class IServiceHostCache
> {
> public const String URI_TEMPLATE =
> "http://${BindAddress}:${Port}/jtek/wcf/${ServiceType}/$
> {ServiceName}";
>
> public IList<Object> RunningServiceHosts =
> new List<Object>();
>
> public abstract void HostService(String ServiceName, String
> ServiceType, Type ServiceContractImpl);
>
> public Uri GenerateServiceUri(string ServiceName, string
> ServiceType)
> {
> return new Uri(URI_TEMPLATE
> .Replace("${BindAddress}", "localhost")
> .Replace("${Port}", "8000")
> .Replace("${ServiceType}", ServiceType)
> .Replace("${ServiceName}", ServiceName));
> }
>
> public abstract void Destroy();
> [/code]
>
> [b]Standard WCF impl:[/b]
> [code]
> public class WcfBasedServiceHostCache : IServiceHostCache
> {
> public override void HostService(String ServiceName, String
> ServiceType, Type ServiceContractImpl)
> {
> Uri uri = GenerateServiceUri( ServiceName, ServiceType );
> ServiceHost host =
> new ServiceHost( ServiceContractImpl , uri );
> try
> {
> host.AddServiceEndpoint(
> ServiceContractImpl,
> new WSHttpBinding(),
> ServiceName);
> ServiceMetadataBehavior httpGetBehaviour =
> new ServiceMetadataBehavior();
> httpGetBehaviour.HttpGetEnabled = true;
> host.Description.Behaviors.Add( httpGetBehaviour );
> host.Open();
> RunningServiceHosts.Add(host);
> }
> catch (CommunicationException ce)
> {
> host.Abort();
> throw new Exception("Something Bad Happened", ce);
> }
> }
>
> public override void Destroy()
> {
> foreach (ServiceHost host in RunningServiceHosts)
> {
> host.Close();
> }
> this.RunningServiceHosts.Clear();
> }
> }
> [/code]
>
> [b]The Windsor Impl[/b]
> [code]
> public class WindsorServiceHostCache : IServiceHostCache
> {
> public override void HostService(String ServiceName, String
> ServiceType, Type ServiceContractImpl)
> {
> Uri uri = this.GenerateServiceUri(ServiceName,
> ServiceType);
> DefaultServiceHostFactory.RegisterContainer
> (((IWindsorContainer) ObjectFactory.FetchDelegate()).Kernel);
> DefaultServiceHost host =
> new DefaultServiceHost(ServiceContractImpl, uri);
> try
> {
> host.AddServiceEndpoint(
> ServiceContractImpl,
> new WSHttpBinding(),
> ServiceName);
> ServiceMetadataBehavior httpGetBehaviour =
> new ServiceMetadataBehavior();
> httpGetBehaviour.HttpGetEnabled = true;
> host.Description.Behaviors.Add(httpGetBehaviour);
> host.Open();
> RunningServiceHosts.Add(host);
> }
> catch (CommunicationException ce)
> {
> host.Abort();
> throw new Exception("Something Bad Happened", ce);
> }
> this.RunningServiceHosts.Add(host);
> }
>
> public override void Destroy()
> {
> foreach (DefaultServiceHost host in
> this.RunningServiceHosts)
> {
> host.Close();
> }
> this.RunningServiceHosts.Clear();
> }
> }
> [/code]
>
> [b]My Application Configuration[/b]
> [code]
> <?xml version="1.0" encoding="utf-8" ?>
> <configuration>
> <configSections>
> <section name="castle"
>
> type="Castle.Windsor.Configuration.AppDomain.CastleSectionHandler,
> Castle.Windsor" />
> </configSections>
>
> <castle>
> <facilities>
> <!-- NHibernate Active Record Facility -->
> <facility
> id="arfacility"
>
> type="Castle.Facilities.ActiveRecordIntegration.ActiveRecordFacility,
> Castle.Facilities.ActiveRecordIntegration"
> isDebug="true"
> isWeb="false">
> <assemblies>
> <item>jTekPos.Data.Model</item>
> </assemblies>
> <config>
> <add key="connection.driver_class"
> value="NHibernate.Driver.MySqlDataDriver" />
> <add key="dialect" value="NHibernate.Dialect.MySQLDialect" />
> <add key="connection.provider"
> value="NHibernate.Connection.DriverConnectionProvider" />
> <add key="connection.connection_string"
> value="Database=jtekposclientdb;Data Source=localhost;User
> Id=root;Password=mrozio" />
> <add key="proxyfactory.factory_class"
> value="NHibernate.ByteCode.LinFu.ProxyFactoryFactory,
> NHibernate.ByteCode.LinFu" />
> <add key="hbm2ddl.keywords" value="none" />
> </config>
> </facility>
>
> <!-- ActiveRecord Automatic Transaction Management -->
> <facility
> id="atm"
>
> type="Castle.Facilities.AutomaticTransactionManagement.TransactionFacility,
> Castle.Facilities.AutomaticTransactionManagement" />
> </facilities>
> </castle>
> </configuration>
> [/code]
>
> And the remote client I use is basicly the selfgenerated code from
> that svcutil.exe thing.
>
> Sorry for asking you guys for help - But I have been struggling with
> this whole project setup the whole of today and yesterday.
>
> Please if I'm posting in the wrong place - just lemme know.
>
> [/code]
>
> --
>
> You received this message because you are subscribed to the Google Groups
> "Castle Project Users" group.
> To post to this group, send email to castle-project-us...@googlegroups.com.
> To unsubscribe from this group, send email to
> castle-project-users+unsubscr...@googlegroups.com.
> For more options, visit this group at
> http://groups.google.com/group/castle-project-users?hl=en.
>
>
>
--
You received this message because you are subscribed to the Google Groups
"Castle Project Users" group.
To post to this group, send email to castle-project-us...@googlegroups.com.
To unsubscribe from this group, send email to
castle-project-users+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/castle-project-users?hl=en.
