Source for gnu.java.beans.encoder.Context

   1: /* Context.java -- Provides calling context information to ScannerStates.
   2:    Copyright (C) 2005 Free Software Foundation, Inc.
   3: 
   4: This file is part of GNU Classpath.
   5: 
   6: GNU Classpath is free software; you can redistribute it and/or modify
   7: it under the terms of the GNU General Public License as published by
   8: the Free Software Foundation; either version 2, or (at your option)
   9: any later version.
  10: 
  11: GNU Classpath is distributed in the hope that it will be useful, but
  12: WITHOUT ANY WARRANTY; without even the implied warranty of
  13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14: General Public License for more details.
  15: 
  16: You should have received a copy of the GNU General Public License
  17: along with GNU Classpath; see the file COPYING.  If not, write to the
  18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19: 02110-1301 USA.
  20: 
  21: Linking this library statically or dynamically with other modules is
  22: making a combined work based on this library.  Thus, the terms and
  23: conditions of the GNU General Public License cover the whole
  24: combination.
  25: 
  26: As a special exception, the copyright holders of this library give you
  27: permission to link this library with independent modules to produce an
  28: executable, regardless of the license terms of these independent
  29: modules, and to copy and distribute the resulting executable under
  30: terms of your choice, provided that you also meet, for each linked
  31: independent module, the terms and conditions of the license of that
  32: module.  An independent module is a module which is not derived from
  33: or based on this library.  If you modify this library, you may extend
  34: this exception to your version of the library, but you are not
  35: obligated to do so.  If you do not wish to do so, delete this
  36: exception statement from your version. */
  37: 
  38: 
  39: package gnu.java.beans.encoder;
  40: 
  41: /** A <code>Contect</code> object describes the current state
  42:  * and the call number while processing the original object
  43:  * tree in the {@link ScanEngine}.
  44:  *
  45:  * <p>The class allows to distinguish the different calling states
  46:  * and is neccessary for the child element skipping feature of
  47:  * the {@link GenericScannerState}.</p>
  48:  *
  49:  * @author Robert Schuster (robertschuster@fsfe.org)
  50:  *
  51:  */
  52: public class Context
  53: {
  54:   private String state;
  55: 
  56:   private int call;
  57: 
  58:   Context(String newState, int newCall)
  59:   {
  60:     state = newState;
  61:     call = newCall;
  62:   }
  63: 
  64:   public int hashCode()
  65:   {
  66:     int hc = 7;
  67:     hc = 31 * hc + state.hashCode();
  68:     hc = 31 * hc + call;
  69: 
  70:     return hc;
  71:   }
  72: 
  73:   public boolean equals(Object o)
  74:   {
  75:     if (!(o instanceof Context))
  76:       return false;
  77: 
  78:     Context that = (Context) o;
  79: 
  80:     return state.equals(that.state)
  81:       && call == that.call;
  82:   }
  83: 
  84:   public String toString()
  85:   {
  86:     return "Context [state=" + state + ", call=" + call + "]";
  87:   }
  88: }