Source for java.rmi.dgc.Lease

   1: /* Lease.java
   2:    Copyright (c) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
   3:    Free Software Foundation, Inc.
   4: 
   5: This file is part of GNU Classpath.
   6: 
   7: GNU Classpath is free software; you can redistribute it and/or modify
   8: it under the terms of the GNU General Public License as published by
   9: the Free Software Foundation; either version 2, or (at your option)
  10: any later version.
  11: 
  12: GNU Classpath is distributed in the hope that it will be useful, but
  13: WITHOUT ANY WARRANTY; without even the implied warranty of
  14: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15: General Public License for more details.
  16: 
  17: You should have received a copy of the GNU General Public License
  18: along with GNU Classpath; see the file COPYING.  If not, write to the
  19: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  20: 02110-1301 USA.
  21: 
  22: Linking this library statically or dynamically with other modules is
  23: making a combined work based on this library.  Thus, the terms and
  24: conditions of the GNU General Public License cover the whole
  25: combination.
  26: 
  27: As a special exception, the copyright holders of this library give you
  28: permission to link this library with independent modules to produce an
  29: executable, regardless of the license terms of these independent
  30: modules, and to copy and distribute the resulting executable under
  31: terms of your choice, provided that you also meet, for each linked
  32: independent module, the terms and conditions of the license of that
  33: module.  An independent module is a module which is not derived from
  34: or based on this library.  If you modify this library, you may extend
  35: this exception to your version of the library, but you are not
  36: obligated to do so.  If you do not wish to do so, delete this
  37: exception statement from your version. */
  38: 
  39: package java.rmi.dgc;
  40: 
  41: import java.io.Serializable;
  42: 
  43: /**
  44:  * A lease object is used to request and grant leases for the remote objects. It
  45:  * contains the lease duration and the unique VM indentifier.
  46:  */
  47: public final class Lease
  48:     implements Serializable
  49: {
  50: 
  51:   static final long serialVersionUID = - 5713411624328831948L;
  52: 
  53:   private VMID vmid;
  54: 
  55:   private long value;
  56: 
  57:   /**
  58:    * Create the new lease with the given id and duration
  59:    * 
  60:    * @param id the lease id
  61:    * @param duration the lease duration
  62:    */
  63:   public Lease(VMID id, long duration)
  64:   {
  65:     vmid = id;
  66:     value = duration;
  67:   }
  68: 
  69:   /**
  70:    * Get the lease id.
  71:    * 
  72:    * @return the lease id
  73:    */
  74:   public VMID getVMID()
  75:   {
  76:     return (vmid);
  77:   }
  78: 
  79:   /**
  80:    * Get the lease duration
  81:    * 
  82:    * @return the lease duration
  83:    */
  84:   public long getValue()
  85:   {
  86:     return (value);
  87:   }
  88: 
  89:   /**
  90:    * Get the string representation of this lease
  91:    * 
  92:    * @return the string represenation (lease id, followed by the lease
  93:    *         duration).
  94:    */
  95:   public String toString()
  96:   {
  97:     return ("[" + vmid.toString() + ", " + Long.toString(value) + "]");
  98:   }
  99: 
 100: }