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 final class NullNameClass extends NameClass { 31 protected NullNameClass() { 32 } 33 34 public boolean contains(QName name) { 35 return false; 36 } 37 38 public int containsSpecificity(QName name) { 39 return SPECIFICITY_NONE; 40 } 41 42 public int hashCode() { 43 return NullNameClass.class.hashCode(); 44 } 45 46 public boolean equals(Object obj) { 47 return this==obj; 48 } 49 50 public <V> V accept(NameClassVisitor<V> visitor) { 51 return visitor.visitNull(); 52 } 53 54 public boolean isOpen() { 55 return false; 56 } 57 58 private Object readResolve() { 59 return NameClass.NULL; 60 } 61 }