1 /*
   2  * Copyright (c) 2000, 2003, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.sun.corba.se.impl.orb ;
  27 
  28 import org.omg.CORBA.portable.OutputStream ;
  29 
  30 import com.sun.corba.se.spi.orb.ORBVersion ;
  31 
  32 public class ORBVersionImpl implements ORBVersion {
  33     private byte orbType ;
  34 
  35     public ORBVersionImpl( byte orbType )
  36     {
  37         this.orbType = orbType ;
  38     }
  39 
  40     public static final ORBVersion FOREIGN = new ORBVersionImpl(
  41         ORBVersion.FOREIGN ) ;
  42 
  43     public static final ORBVersion OLD = new ORBVersionImpl(
  44         ORBVersion.OLD ) ;
  45 
  46     public static final ORBVersion NEW = new ORBVersionImpl(
  47         ORBVersion.NEW ) ;
  48 
  49     public static final ORBVersion JDK1_3_1_01 = new ORBVersionImpl(
  50         ORBVersion.JDK1_3_1_01 ) ;
  51 
  52     public static final ORBVersion NEWER = new ORBVersionImpl(
  53         ORBVersion.NEWER ) ;
  54 
  55     public static final ORBVersion PEORB = new ORBVersionImpl(
  56         ORBVersion.PEORB ) ;
  57 
  58     public byte getORBType()
  59     {
  60         return orbType ;
  61     }
  62 
  63     public void write( OutputStream os )
  64     {
  65         os.write_octet( (byte)orbType ) ;
  66     }
  67 
  68     public String toString()
  69     {
  70         return "ORBVersionImpl[" + Byte.toString( orbType ) + "]" ;
  71     }
  72 
  73     public boolean equals( Object obj )
  74     {
  75         if (!(obj instanceof ORBVersion))
  76             return false ;
  77 
  78         ORBVersion version = (ORBVersion)obj ;
  79         return version.getORBType() == orbType ;
  80     }
  81 
  82     public int hashCode()
  83     {
  84         return orbType ;
  85     }
  86 
  87     public boolean lessThan(ORBVersion version) {
  88         return orbType < version.getORBType();
  89     }
  90 
  91     public int compareTo(Object obj) {
  92         // The Comparable interface says that this
  93         // method throws a ClassCastException if the
  94         // given object's type prevents it from being
  95         // compared.
  96         return getORBType() - ((ORBVersion)obj).getORBType();
  97     }
  98 }