/* * Copyright (c) 2002, 2007, 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. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package javax.management.remote.rmi; import java.io.IOException;import java.rmi.Remote;import java.rmi.RemoteException; /** * <p>RMI object used to establish connections to an RMI connector. * There is one Remote object implementing this interface for each RMI * connector.</p> * * <p>User code does not usually refer to this interface.  It is * specified as part of the public API so that different * implementations of that API will interoperate.</p> * * @since 1.5 */public interface RMIServer extends Remote {    /**     * <p>The version of the RMI Connector Protocol understood by this     * connector server.  This is a string with the following format:</p>     *     * <pre>     * <em>protocol-version</em> <em>implementation-name</em>     * </pre>     *     * <p>The <code><em>protocol-version</em></code> is a series of     * two or more non-negative integers separated by periods     * (<code>.</code>).  An implementation of the version described     * by this documentation must use the string <code>1.0</code>     * here.</p>     *     * <p>After the protocol version there must be a space, followed     * by the implementation name.  The format of the implementation     * name is unspecified.  It is recommended that it include an     * implementation version number.  An implementation can use an     * empty string as its implementation name, for example for     * security reasons.</p>     *     * @return a string with the format described here.     *     * @exception RemoteException if there is a communication     * exception during the remote method call.     */    public String getVersion() throws RemoteException;     /**     * <p>Makes a new connection through this RMI connector.  Each     * remote client calls this method to obtain a new RMI object     * representing its connection.</p>     *     * @param credentials this object specifies the user-defined credentials     * to be passed in to the server in order to authenticate the user before     * creating the <code>RMIConnection</code>.  Can be null.     *     * @return the newly-created connection object.     *     * @exception IOException if the new client object cannot be     * created or exported, or if there is a communication exception     * during the remote method call.     *     * @exception SecurityException if the given credentials do not     * allow the server to authenticate the caller successfully.     */    public RMIConnection newClient(Object credentials) throws IOException;}