1 /*
   2  * Copyright (c) 2005, 2012, 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.binary.visitor;
  47 
  48 import com.sun.xml.internal.rngom.binary.Pattern;
  49 import com.sun.xml.internal.rngom.nc.NameClass;
  50 import org.relaxng.datatype.Datatype;
  51 
  52 /**
  53  * Walks the pattern tree.
  54  *
  55  * @author
  56  *      Kohsuke Kawaguchi (kk@kohsuke.org)
  57  */
  58 public class PatternWalker implements PatternVisitor {
  59     public void visitEmpty() {
  60     }
  61 
  62     public void visitNotAllowed() {
  63     }
  64 
  65     public void visitError() {
  66     }
  67 
  68     public void visitGroup(Pattern p1, Pattern p2) {
  69         visitBinary(p1, p2);
  70     }
  71 
  72     protected void visitBinary(Pattern p1, Pattern p2) {
  73         p1.accept(this);
  74         p2.accept(this);
  75     }
  76 
  77     public void visitInterleave(Pattern p1, Pattern p2) {
  78         visitBinary(p1, p2);
  79     }
  80 
  81     public void visitChoice(Pattern p1, Pattern p2) {
  82         visitBinary(p1, p2);
  83     }
  84 
  85     public void visitOneOrMore(Pattern p) {
  86         p.accept(this);
  87     }
  88 
  89     public void visitElement(NameClass nc, Pattern content) {
  90         content.accept(this);
  91     }
  92 
  93     public void visitAttribute(NameClass ns, Pattern value) {
  94         value.accept(this);
  95     }
  96 
  97     public void visitData(Datatype dt) {
  98     }
  99 
 100     public void visitDataExcept(Datatype dt, Pattern except) {
 101     }
 102 
 103     public void visitValue(Datatype dt, Object obj) {
 104     }
 105 
 106     public void visitText() {
 107     }
 108 
 109     public void visitList(Pattern p) {
 110         p.accept(this);
 111     }
 112 
 113     public void visitAfter(Pattern p1, Pattern p2) {
 114     }
 115 }