Why do we need an Interface in Web Service ?

Hi Akii,

in dotnet interfaces are used for describing behaviour.
WCF, Web-services and remoting this all technology uses RPC (Remote Procedure Calling) behaviour.
in RPC there must be some common binding which shared by client and server.

if you use classes instead of interface, you've share your resultatnt dll file to client also.
hence your logic goes to client side, which is not good practice. that's why we are using interfaces.


Mark this as answer, if it helps you...........

Himanshu Manjarawala
Sr. Software Engineer@AutomationAnywhere
http://fieredotnet.wordpress.com/

Hi Akiii,

1st of all using interface as shared medium between client and service, we can hide our businesslogic from client...
here i means that if you use concrete classes then client may generate code from your dlls (through ILDASM.exe or other tools available...).
and reason for not using abstract class for same because multiple inheritance is not supported.

that's why................

Himanshu Manjarawala
Sr. Software Engineer@AutomationAnywhere
http://fieredotnet.wordpress.com/