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| 1 | /* | ||
| 2 | * Copyright (c) 1998, 2001, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | |||
| 26 | package java.rmi.server; | ||
| 27 | |||
| 28 | import java.io.*; | ||
| 29 | import java.net.*; | ||
| 30 | |||
| 31 | /** | ||
| 32 | * An <code>RMIClientSocketFactory</code> instance is used by the RMI runtime | ||
| 33 | * in order to obtain client sockets for RMI calls. A remote object can be | ||
| 34 | * associated with an <code>RMIClientSocketFactory</code> when it is | ||
| 35 | * created/exported via the constructors or <code>exportObject</code> methods | ||
| 36 | * of <code>java.rmi.server.UnicastRemoteObject</code> and | ||
| 37 | * <code>java.rmi.activation.Activatable</code> . | ||
| 38 | * | ||
| 39 | * <p>An <code>RMIClientSocketFactory</code> instance associated with a remote | ||
| 40 | * object will be downloaded to clients when the remote object's reference is | ||
| 41 | * transmitted in an RMI call. This <code>RMIClientSocketFactory</code> will | ||
| 42 | * be used to create connections to the remote object for remote method calls. | ||
| 43 | * | ||
| 44 | * <p>An <code>RMIClientSocketFactory</code> instance can also be associated | ||
| 45 | * with a remote object registry so that clients can use custom socket | ||
| 46 | * communication with a remote object registry. | ||
| 47 | * | ||
| 48 | * <p>An implementation of this interface should be serializable and | ||
| 49 | * should implement {@link Object#equals} to return <code>true</code> when | ||
| 50 | * passed an instance that represents the same (functionally equivalent) | ||
| 51 | * client socket factory, and <code>false</code> otherwise (and it should also | ||
| 52 | * implement {@link Object#hashCode} consistently with its | ||
| 53 | * <code>Object.equals</code> implementation). | ||
| 54 | * | ||
| 55 | * @author Ann Wollrath | ||
| 56 | * @author Peter Jones | ||
| 57 | * @since 1.2 | ||
| 58 | * @see java.rmi.server.UnicastRemoteObject | ||
| 59 | * @see java.rmi.activation.Activatable | ||
| 60 | * @see java.rmi.registry.LocateRegistry | ||
| 61 | */ | ||
| 62 | public interface RMIClientSocketFactory { | ||
| 63 | |||
| 64 | /** | ||
| 65 | * Create a client socket connected to the specified host and port. | ||
| 66 | * @param host the host name | ||
| 67 | * @param port the port number | ||
| 68 | * @return a socket connected to the specified host and port. | ||
| 69 | * @exception IOException if an I/O error occurs during socket creation | ||
| 70 | * @since 1.2 | ||
| 71 | */ | ||
| 72 | public Socket createSocket(String host, int port) | ||
| 73 | throws IOException; | ||
| 74 | } | ||