1 /*
   2  * Copyright (c) 2005, 2010, 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.xml.internal.rngom.nc;
  27 
  28 import javax.xml.namespace.QName;
  29 
  30 public class ChoiceNameClass extends NameClass {
  31 
  32     private final NameClass nameClass1;
  33     private final NameClass nameClass2;
  34 
  35     public ChoiceNameClass(NameClass nameClass1, NameClass nameClass2) {
  36         this.nameClass1 = nameClass1;
  37         this.nameClass2 = nameClass2;
  38     }
  39 
  40     public boolean contains(QName name) {
  41         return (nameClass1.contains(name) || nameClass2.contains(name));
  42     }
  43 
  44     public int containsSpecificity(QName name) {
  45         return Math.max(
  46             nameClass1.containsSpecificity(name),
  47             nameClass2.containsSpecificity(name));
  48     }
  49 
  50     public int hashCode() {
  51         return nameClass1.hashCode() ^ nameClass2.hashCode();
  52     }
  53 
  54     public boolean equals(Object obj) {
  55         if (obj == null || !(obj instanceof ChoiceNameClass))
  56             return false;
  57         ChoiceNameClass other = (ChoiceNameClass) obj;
  58         return (
  59             nameClass1.equals(other.nameClass1)
  60                 && nameClass2.equals(other.nameClass2));
  61     }
  62 
  63     public <V> V accept(NameClassVisitor<V> visitor) {
  64         return visitor.visitChoice(nameClass1, nameClass2);
  65     }
  66 
  67     public boolean isOpen() {
  68         return nameClass1.isOpen() || nameClass2.isOpen();
  69     }
  70 }