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package java.rmi.server;

import java.io.*;
import java.net.*;

An RMIServerSocketFactory instance is used by the RMI runtime
in order to obtain server sockets for RMI calls.  A remote object can be
associated with an RMIServerSocketFactory when it is
created/exported via the constructors or exportObject methods
of java.rmi.server.UnicastRemoteObject and
java.rmi.activation.Activatable .
An RMIServerSocketFactory instance associated with a remote
object is used to obtain the ServerSocket used to accept
incoming calls from clients.
An RMIServerSocketFactory instance can also be associated
with a remote object registry so that clients can use custom socket
communication with a remote object registry.
An implementation of this interface should implement Object.equals to return true when
passed an instance that represents the same (functionally equivalent)
server socket factory, and false otherwise (and it should also implement Object.hashCode consistently with its Object.equals implementation).
Author:
 Ann Wollrath,  Peter Jones
See Also:
UnicastRemoteObject
Activatable
LocateRegistry
Since:
  1.2/**
 * An <code>RMIServerSocketFactory</code> instance is used by the RMI runtime
 * in order to obtain server sockets for RMI calls.  A remote object can be
 * associated with an <code>RMIServerSocketFactory</code> when it is
 * created/exported via the constructors or <code>exportObject</code> methods
 * of <code>java.rmi.server.UnicastRemoteObject</code> and
 * <code>java.rmi.activation.Activatable</code> .
 *
 * <p>An <code>RMIServerSocketFactory</code> instance associated with a remote
 * object is used to obtain the <code>ServerSocket</code> used to accept
 * incoming calls from clients.
 *
 * <p>An <code>RMIServerSocketFactory</code> instance can also be associated
 * with a remote object registry so that clients can use custom socket
 * communication with a remote object registry.
 *
 * <p>An implementation of this interface
 * should implement {@link Object#equals} to return <code>true</code> when
 * passed an instance that represents the same (functionally equivalent)
 * server socket factory, and <code>false</code> otherwise (and it should also
 * implement {@link Object#hashCode} consistently with its
 * <code>Object.equals</code> implementation).
 *
 * @author  Ann Wollrath
 * @author  Peter Jones
 * @since   1.2
 * @see     java.rmi.server.UnicastRemoteObject
 * @see     java.rmi.activation.Activatable
 * @see     java.rmi.registry.LocateRegistry
 */
public interface RMIServerSocketFactory {

    
Create a server socket on the specified port (port 0 indicates
an anonymous port).
Params:
port – the port number
Throws:
IOException – if an I/O error occurs during server socket
creation
Returns:
the server socket on the specified port
Since:
1.2/**
     * Create a server socket on the specified port (port 0 indicates
     * an anonymous port).
     * @param  port the port number
     * @return the server socket on the specified port
     * @throws IOException if an I/O error occurs during server socket
     * creation
     * @since 1.2
     */
    public ServerSocket createServerSocket(int port)
        throws IOException;
}