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 * Copyright (C) 2004-2011 27 * 28 * Permission is hereby granted, free of charge, to any person obtaining a copy 29 * of this software and associated documentation files (the "Software"), to deal 30 * in the Software without restriction, including without limitation the rights 31 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 32 * copies of the Software, and to permit persons to whom the Software is 33 * furnished to do so, subject to the following conditions: 34 * 35 * The above copyright notice and this permission notice shall be included in 36 * all copies or substantial portions of the Software. 37 * 38 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 39 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 40 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 41 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 42 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 43 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 44 * THE SOFTWARE. 45 */ 46 package com.sun.xml.internal.rngom.digested; 47 48 /** 49 * @author Kohsuke Kawaguchi (kk@kohsuke.org) 50 */ 51 public class DPatternWalker implements DPatternVisitor<Void> { 52 public Void onAttribute(DAttributePattern p) { 53 return onXmlToken(p); 54 } 55 56 protected Void onXmlToken(DXmlTokenPattern p) { 57 return onUnary(p); 58 } 59 60 public Void onChoice(DChoicePattern p) { 61 return onContainer(p); 62 } 63 64 protected Void onContainer(DContainerPattern p) { 65 for( DPattern c=p.firstChild(); c!=null; c=c.next ) 66 c.accept(this); 67 return null; 68 } 69 70 public Void onData(DDataPattern p) { 71 return null; 72 } 73 74 public Void onElement(DElementPattern p) { 75 return onXmlToken(p); 76 } 77 78 public Void onEmpty(DEmptyPattern p) { 79 return null; 80 } 81 82 public Void onGrammar(DGrammarPattern p) { 83 return p.getStart().accept(this); 84 } 85 86 public Void onGroup(DGroupPattern p) { 87 return onContainer(p); 88 } 89 90 public Void onInterleave(DInterleavePattern p) { 91 return onContainer(p); 92 } 93 94 public Void onList(DListPattern p) { 95 return onUnary(p); 96 } 97 98 public Void onMixed(DMixedPattern p) { 99 return onUnary(p); 100 } 101 102 public Void onNotAllowed(DNotAllowedPattern p) { 103 return null; 104 } 105 106 public Void onOneOrMore(DOneOrMorePattern p) { 107 return onUnary(p); 108 } 109 110 public Void onOptional(DOptionalPattern p) { 111 return onUnary(p); 112 } 113 114 public Void onRef(DRefPattern p) { 115 return p.getTarget().getPattern().accept(this); 116 } 117 118 public Void onText(DTextPattern p) { 119 return null; 120 } 121 122 public Void onValue(DValuePattern p) { 123 return null; 124 } 125 126 public Void onZeroOrMore(DZeroOrMorePattern p) { 127 return onUnary(p); 128 } 129 130 protected Void onUnary(DUnaryPattern p) { 131 return p.getChild().accept(this); 132 } 133 }