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How returning a remote object created in the server
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Maurizio Poletto (VIP)
A singleton object (server) has a method (login) to let to every client to
connect to the server. I should like to return a new object (session) with
new methods.

So, in the client, we have
Session session = server.login(userId, userPsw);

while, in the server, we have
Session Login(string Id, string Psw)
{
...
...
Session session = new Session();
return session;
}

I would appreciate any ideas on how to return an object created in the server?
Regards
Maurizio
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Maurizio Poletto (VIP)
Thank for your quick reply.
I have followed any your advise but something seems not to run well!.
In the server I wrote:

public ObjRef Login(string userId, stringUserPsw)
{
Session session = new Session();
return RemotingServices.Marshal(session);
}

while, in the client, I wrote:

ObjRef obj = server.Login("ciao","bella");
Object proxy = RemotingServices.Unmarshal(obj);
Session session = (Session)RemoteingServices.Connect(typeof(Session),
"tcp://localhost:8080//Session");

and, after, when I call a method of Session

session.Initialize();

I have an exception i.e. "Requested Service not found"

I understand that this problem was solved successfully, but I spent a lot of
time without a happy solution. A bit of help is appreciate!
Ciao
Maurizio

"Maurizio Poletto" wrote:

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Ken Kolda
You've made it more complicated than it needs to be. Here's your server-side
code:

public Session Login(string uiserId, string userPsw)
{
return new Session();
}

On the client side, just use:

Session session = server.Login("ciao", "bella");
session.Initialize();

There's no need to deal with all the ObjRef marshalling directly as that
will be taken care of for you by .NET.

Ken

"Maurizio Poletto" <Click here to reveal e-mail address> wrote in
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Maurizio Poletto (VIP)
Of course I had already tried in this way, but
Session session = server.Login("ciao", "bella");
return an exception: Return argument return an invalid type.
So that I had tried a workaroud to resolve this problem.
I don't understand why a so easy code gives me a big problem.
Thank for any your suggestion.
Ciao Maurizio

"Ken Kolda" wrote:

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Sam Santiago
Sounds like you have to ensure your client application has access to the
meta-data of the returned remote object. You either have to deploy your
remote object assembly to your client or define a shared interface.

Check out step#5 of this link:

Basic Remoting Task List
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpguide/html/cpconBasicRemotingTaskList.asp

Thanks,

Sam

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Sam Santiago
You want each client to have a "session" object which implies you want to
use a CAO - Client Activated Object. All you have to do is derive your
Session object from MarshalByRefObject and have your server singleton object
return it. We had a discussion on this scenario several times of the
passed few weeks so search for factory pattern in this group or I also put
some of the discussion on my site:
http://www.SoftiTechture.com/discussions.

Thanks,

Sam

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http://www.SoftiTechture.com
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System.MarshalByRefObject
System.Runtime.Remoting.ObjRef
System.Runtime.Remoting.RemotingServices




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