Source for gnu.javax.print.ipp.IppDelimiterTag

   1: /* IppDelimiterTag.java --
   2:    Copyright (C) 2006 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.javax.print.ipp;
  40: 
  41: 
  42: /**
  43:  * IPP Delimiter Tags as described in RFC 2910 section 3.5.1.
  44:  * <p>
  45:  * Every delimiter tag value can occur in the protocol field
  46:  * begin-attribute-group-tag and indicates that the following
  47:  * attributes will be part of the named group.<br>
  48:  * The end-of-attributes-tag signals the end of the attributes
  49:  * section in the IPP request/response and therefore the beginning
  50:  * of the data section (if any).
  51:  * </p>
  52:  *
  53:  * @author Wolfgang Baer (WBaer@gmx.de)
  54:  */
  55: public final class IppDelimiterTag
  56: {
  57:   /** Start of the operation attributes group section. */
  58:   public static final byte OPERATION_ATTRIBUTES_TAG = 0x01;
  59: 
  60:   /** Start of the job attributes group section. */
  61:   public static final byte JOB_ATTRIBUTES_TAG = 0x02;
  62: 
  63:   /** End of the attributes section and begin of data section. */
  64:   public static final byte END_OF_ATTRIBUTES_TAG = 0x03;
  65: 
  66:   /** Start of the printer attributes group section. */
  67:   public static final byte PRINTER_ATTRIBUTES_TAG = 0x04;
  68: 
  69:   /** Start of the unsupported attributes group section. */
  70:   public static final byte UNSUPPORTED_ATTRIBUTES_TAG = 0x05;
  71: 
  72: 
  73:   // 0x00 reserved for definition in a future IETF
  74:   // standards track document
  75: 
  76:   // 0x06-0x0f reserved for future delimiters in IETF
  77:   // standards track documents
  78: 
  79:   private IppDelimiterTag()
  80:   {
  81:     // not to be instantiated
  82:   }
  83: 
  84:   /**
  85:    * Tests if given value corresponds to a
  86:    * delimiter tag value.
  87:    *
  88:    * @param value the value to test for
  89:    * @return <code>true</code> if, <code>false</code> otherwise.
  90:    */
  91:   public static boolean isDelimiterTag(byte value)
  92:   {
  93:     if (value >= 0x01 && value <= 0x05)
  94:       return true;
  95: 
  96:     return false;
  97:   }
  98: 
  99: }