001    /* RMIServer.java -- RMI object for connecting to an RMI JMX connector.
002       Copyright (C) 2007 Free Software Foundation, Inc.
003    
004    This file is part of GNU Classpath.
005    
006    GNU Classpath is free software; you can redistribute it and/or modify
007    it under the terms of the GNU General Public License as published by
008    the Free Software Foundation; either version 2, or (at your option)
009    any later version.
010    
011    GNU Classpath is distributed in the hope that it will be useful, but
012    WITHOUT ANY WARRANTY; without even the implied warranty of
013    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014    General Public License for more details.
015    
016    You should have received a copy of the GNU General Public License
017    along with GNU Classpath; see the file COPYING.  If not, write to the
018    Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
019    02110-1301 USA.
020    
021    Linking this library statically or dynamically with other modules is
022    making a combined work based on this library.  Thus, the terms and
023    conditions of the GNU General Public License cover the whole
024    combination.
025    
026    As a special exception, the copyright holders of this library give you
027    permission to link this library with independent modules to produce an
028    executable, regardless of the license terms of these independent
029    modules, and to copy and distribute the resulting executable under
030    terms of your choice, provided that you also meet, for each linked
031    independent module, the terms and conditions of the license of that
032    module.  An independent module is a module which is not derived from
033    or based on this library.  If you modify this library, you may extend
034    this exception to your version of the library, but you are not
035    obligated to do so.  If you do not wish to do so, delete this
036    exception statement from your version. */
037    
038    package javax.management.remote.rmi;
039    
040    import java.io.IOException;
041    
042    import java.rmi.Remote;
043    import java.rmi.RemoteException;
044    
045    /**
046     * RMI interface for obtaining an instance of an
047     * {@link RMIConnection}.  An implementation of this
048     * interface exists for each RMI connector.
049     *
050     * @author Andrew John Hughes (gnu_andrew@member.fsf.org)
051     * @since 1.5
052     */
053    public interface RMIServer
054      extends Remote
055    {
056    
057      /**
058       * Returns the version of the RMI connection protocol used
059       * by this server.  The returned string takes the form of
060       * <emph>protocol-version implementation-name</emph> where
061       * <emph>protocol-version</emph> is a series of two or more
062       * non-negative integers, separated by a decimal point (.)
063       * (currently {@code 1.0}) and <emph>implementation-name</emph>
064       * is the string {@code "GNU Classpath"} followed by the version
065       * of GNU Classpath in use.
066       *
067       * @return the string specified above.
068       * @throws RemoteException if there is a problem with the transfer
069       *                         of the string via RMI.
070       */
071      String getVersion()
072        throws RemoteException;
073    
074      /**
075       * Constructs and returns a new RMI connection using the specified
076       * authentication credentials.  Each client calls this method to
077       * obtain a connection to the server.
078       *
079       * @param credentials a user-defined object passed to the server
080       *                    to authenticate the client.  May be {@code null}.
081       * @return the new connection.
082       * @throws IOException if the new connection can not be created or
083       *                     exported, or an error occurs in the RMI transmission.
084       * @throws SecurityException if the client could not be authenticated
085       *                           correctly using the supplied credientials.
086       */
087      RMIConnection newClient(Object credentials)
088        throws IOException;
089    }