/*
* Copyright (c) 1998, 2001, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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package java.rmi.server;
import java.io.*;
import java.net.*;
/**
* An <code>RMIClientSocketFactory</code> instance is used by the RMI runtime
* in order to obtain client sockets for RMI calls. A remote object can be
* associated with an <code>RMIClientSocketFactory</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>RMIClientSocketFactory</code> instance associated with a remote
* object will be downloaded to clients when the remote object's reference is
* transmitted in an RMI call. This <code>RMIClientSocketFactory</code> will
* be used to create connections to the remote object for remote method calls.
*
* <p>An <code>RMIClientSocketFactory</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 be serializable and
* should implement {@link Object#equals} to return <code>true</code> when
* passed an instance that represents the same (functionally equivalent)
* client 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 RMIClientSocketFactory {
/**
* Create a client socket connected to the specified host and port.
* @param host the host name
* @param port the port number
* @return a socket connected to the specified host and port.
* @exception IOException if an I/O error occurs during socket creation
* @since 1.2
*/
public Socket createSocket(String host, int port)
throws IOException;
}