Castle.DynamicProxy library loading error...

cyrille · **Joined:** Fri Aug 18, 2006 7:30 am **Posts:** 5

Hibernate version: 1.2.0 GA

Hello,

I have a trouble with Lazy initialization...
If in my mapping file I change lazy="false" to "true", I have the following error (impossible to load library Castle.DynamicProxy.dll) :

Code:

{"Impossible de charger le fichier ou l'assembly 'Castle.DynamicProxy, Version=1.1.5.0, Culture=neutral, PublicKeyToken=407dd0808d44fbdc' ou une de ses dépendances. Le fichier spécifié est introuvable.":"Castle.DynamicProxy, Version=1.1.5.0, Culture=neutral, PublicKeyToken=407dd0808d44fbdc"}
    [System.IO.FileNotFoundException]: {"Impossible de charger le fichier ou l'assembly 'Castle.DynamicProxy, Version=1.1.5.0, Culture=neutral, PublicKeyToken=407dd0808d44fbdc' ou une de ses dépendances. Le fichier spécifié est introuvable.":"Castle.DynamicProxy, Version=1.1.5.0, Culture=neutral, PublicKeyToken=407dd0808d44fbdc"}
    Data: {System.Collections.ListDictionaryInternal}
    HelpLink: null
    InnerException: null
    Message: "Impossible de charger le fichier ou l'assembly 'Castle.DynamicProxy, Version=1.1.5.0, Culture=neutral, PublicKeyToken=407dd0808d44fbdc' ou une de ses dépendances. Le fichier spécifié est introuvable."
    Source: "NHibernate"
    StackTrace: "   à NHibernate.Proxy.CastleProxyFactory..cctor()"
    TargetSite: {Void .cctor()}

My mapping file :

Code:

<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2">
    <class name="*****.Dao.Nhibernate.Site, *****.Dao.Nhibernate" table="SAT_ADRSIT" lazy="true">
    <id name="ID" type="String" column="NUMADR">
        <generator class="assigned"/>
    </id>
    <property name="Name" column="NOMCLI" type="String" not-null="false" />
 </class>
</hibernate-mapping>

My class :

Code:

    [Serializable]
    public class Site : DomainObject<String>
    {


        private String name;

        public Site()
        {
        }

         public virtual String Name {
             get { return name; }
             set { name = value;}
         }


        public override int GetHashCode()
        {
            return ID.GetHashCode();
        }

     }

It works fine with lazy="false", and loaded values are ok...

Any ideas ?

thanks

hace_x · **Joined:** Thu Oct 26, 2006 4:45 am **Posts:** 39

I had the same problem. the only solution is to switch lazy loading in the mapping file

http://forum.hibernate.org/viewtopic.ph ... namicproxy

kire · **Posted:** Thu Oct 18, 2007 3:55 pm

Hi,

Used example from NHibernate quickstart together with NHibernate version NHibernate-1.2.0.GA.

Looks like is working until using the

Code:

session = factory.OpenSession();
User joeCool = (User)session.Load(typeof(User), "joe_cool");

then the following exception is comming up:

Code:

Unhandled Exception: NHibernate.HibernateException: Creating a proxy instance failed ---> System.TypeLoadException: Access is denied: 'hbrnt.User'.

Debuging the whole case down into the Castle stuff it goes wrong anywhere in
Castle.DynamicProxy.Builder.CodeBuilder.AbstractEasyType.BuildType()

However setting the lazy attribute to false helps in this case.

Code:

Another workaround is to use the old NHibernate package
nhibernate-1.0.4.0 with this package the issue described above never appears.

Thought about exchanging the castle.dynamic.proxy.dll but this one is of the same build as in package 1.0.4.0 and 1.2.0.GA.

So looks like there is a bug in 1.0.2.0GA which appears in the castle.dynamic.proxy.dll.

Anybody an idea, if it is really a bug or did I made build failure or something ?

karlchu · **Posted:** Fri Oct 19, 2007 9:47 am

Perhaps your hbrnt.User class is not public?

kire · **Posted:** Sat Oct 20, 2007 12:28 pm

yes indeed the class was not public. Checked it out now and it works fine in all cases.

Thanks.

cyrille · **Joined:** Fri Aug 18, 2006 7:30 am **Posts:** 5

hace_x wrote:

I had the same problem. the only solution is to switch lazy loading in the mapping file

http://forum.hibernate.org/viewtopic.ph ... namicproxy

The TypeInitializationException occurs for the class itself, not because of a many-to-one relation....

Any ideas ? :-S

xasp · **Posted:** Wed Oct 24, 2007 6:08 am

Just to be sure: did you add a reference to the Castle.DynamicProxy.dll assembly in your project ?

cyrille · **Joined:** Fri Aug 18, 2006 7:30 am **Posts:** 5

xasp wrote:

Just to be sure: did you add a reference to the Castle.DynamicProxy.dll assembly in your project ?

:-/
The reference is not needed, but the dll should be in the same directory as the main NHibernate.dll....

That was the answer, thanks.