Module java.rmi
Package java.rmi.server

Class RMISocketFactory

java.lang.Object
java.rmi.server.RMISocketFactory
All Implemented Interfaces:
RMIClientSocketFactory, RMIServerSocketFactory
public abstract class RMISocketFactory extends Object implements RMIClientSocketFactory, RMIServerSocketFactory
An RMISocketFactory instance is used by the RMI runtime in order to obtain client and server sockets for RMI calls. An application may use the setSocketFactory method to request that the RMI runtime use its socket factory instance instead of the default implementation.

The default socket factory implementation creates a direct socket connection to the remote host.

The default socket factory implementation creates server sockets that are bound to the wildcard address, which accepts requests from all network interfaces.

Implementation Note:

You can use the RMISocketFactory class to create a server socket that is bound to a specific address, restricting the origin of requests. For example, the following code implements a socket factory that binds server sockets to an IPv4 loopback address. This restricts RMI to processing requests only from the local host. 


     class LoopbackSocketFactory extends RMISocketFactory {
         public ServerSocket createServerSocket(int port) throws IOException {
             return new ServerSocket(port, 5, InetAddress.getByName("127.0.0.1"));
         }

         public Socket createSocket(String host, int port) throws IOException {
             // just call the default client socket factory
             return RMISocketFactory.getDefaultSocketFactory()
                                    .createSocket(host, port);
         }
     }

     // ...

     RMISocketFactory.setSocketFactory(new LoopbackSocketFactory());
Set the java.rmi.server.hostname system property to 127.0.0.1 to ensure that the generated stubs connect to the right network interface.

Since:
1.1