001    /* Lease.java
002       Copyright (c) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
003       Free Software Foundation, Inc.
004    
005    This file is part of GNU Classpath.
006    
007    GNU Classpath is free software; you can redistribute it and/or modify
008    it under the terms of the GNU General Public License as published by
009    the Free Software Foundation; either version 2, or (at your option)
010    any later version.
011    
012    GNU Classpath is distributed in the hope that it will be useful, but
013    WITHOUT ANY WARRANTY; without even the implied warranty of
014    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
015    General Public License for more details.
016    
017    You should have received a copy of the GNU General Public License
018    along with GNU Classpath; see the file COPYING.  If not, write to the
019    Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
020    02110-1301 USA.
021    
022    Linking this library statically or dynamically with other modules is
023    making a combined work based on this library.  Thus, the terms and
024    conditions of the GNU General Public License cover the whole
025    combination.
026    
027    As a special exception, the copyright holders of this library give you
028    permission to link this library with independent modules to produce an
029    executable, regardless of the license terms of these independent
030    modules, and to copy and distribute the resulting executable under
031    terms of your choice, provided that you also meet, for each linked
032    independent module, the terms and conditions of the license of that
033    module.  An independent module is a module which is not derived from
034    or based on this library.  If you modify this library, you may extend
035    this exception to your version of the library, but you are not
036    obligated to do so.  If you do not wish to do so, delete this
037    exception statement from your version. */
038    
039    package java.rmi.dgc;
040    
041    import java.io.Serializable;
042    
043    /**
044     * A lease object is used to request and grant leases for the remote objects. It
045     * contains the lease duration and the unique VM indentifier.
046     */
047    public final class Lease
048        implements Serializable
049    {
050    
051      static final long serialVersionUID = - 5713411624328831948L;
052    
053      private VMID vmid;
054    
055      private long value;
056    
057      /**
058       * Create the new lease with the given id and duration
059       * 
060       * @param id the lease id
061       * @param duration the lease duration
062       */
063      public Lease(VMID id, long duration)
064      {
065        vmid = id;
066        value = duration;
067      }
068    
069      /**
070       * Get the lease id.
071       * 
072       * @return the lease id
073       */
074      public VMID getVMID()
075      {
076        return (vmid);
077      }
078    
079      /**
080       * Get the lease duration
081       * 
082       * @return the lease duration
083       */
084      public long getValue()
085      {
086        return (value);
087      }
088    
089      /**
090       * Get the string representation of this lease
091       * 
092       * @return the string represenation (lease id, followed by the lease
093       *         duration).
094       */
095      public String toString()
096      {
097        return ("[" + vmid.toString() + ", " + Long.toString(value) + "]");
098      }
099    
100    }