Re: Stateful Web Services...

You might want to look at Choreography and orchestration initiatives 
like WS-CDL and BPEL4WS for stateful interactions between web -services. 
I believe there are some application servers already existing with 
BPEL4WS as the specification language

Cristóvão Bento wrote:

> Hi to all,
>  
> As far as i understood, web services are stateless by definition. 
> Although i already read some works about JAX-RPC and the possibility 
> of creating a stateful web service. To do this we need to extend the 
> javax.xml.rpc.server.ServiceLifecyle interface.
>  
> Although i would like to know what are the developments in stateful 
> Web Services. Is it possible already to have a full server running and 
> responding to requests like for example a Windows DCOM Service? or a 
> CORBA Server. These kind of server have their own cycle of life. For 
> Web Services the cycle of life is controled by the Web Server, they 
> are dynamically allocated when a request arrives and deallocated when 
> that request/session ends. Also these kind of servers gives us the 
> hability to maintain some usefull information in memory which can make 
> their performance increse in several situations.
>  
> When this will be possible with Web Services? to have mass processing 
> server running while some application server is running...
>  
> sem mais,
>  
> Cristóvão André Carvalho Bento
> Software Engineer
>  
> Critical Software SA
> Parque Industrial de Taveiro, Lote 48
> 3045-504 Coimbra, Portugal
> Tel:+351.239 989 108 Fax:+351.239 989 119
> http://www.criticalsoftware.com
> mailto:cbento@criticalsoftware.com
>
>
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Monika Solanki
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