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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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/*
 * Copyright (C) 2004-2011
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
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 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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package com.sun.xml.internal.rngom.digested;

Author:Kohsuke Kawaguchi (kk@kohsuke.org)
/** * @author Kohsuke Kawaguchi (kk@kohsuke.org) */
public class DPatternWalker implements DPatternVisitor<Void> { public Void onAttribute(DAttributePattern p) { return onXmlToken(p); } protected Void onXmlToken(DXmlTokenPattern p) { return onUnary(p); } public Void onChoice(DChoicePattern p) { return onContainer(p); } protected Void onContainer(DContainerPattern p) { for( DPattern c=p.firstChild(); c!=null; c=c.next ) c.accept(this); return null; } public Void onData(DDataPattern p) { return null; } public Void onElement(DElementPattern p) { return onXmlToken(p); } public Void onEmpty(DEmptyPattern p) { return null; } public Void onGrammar(DGrammarPattern p) { return p.getStart().accept(this); } public Void onGroup(DGroupPattern p) { return onContainer(p); } public Void onInterleave(DInterleavePattern p) { return onContainer(p); } public Void onList(DListPattern p) { return onUnary(p); } public Void onMixed(DMixedPattern p) { return onUnary(p); } public Void onNotAllowed(DNotAllowedPattern p) { return null; } public Void onOneOrMore(DOneOrMorePattern p) { return onUnary(p); } public Void onOptional(DOptionalPattern p) { return onUnary(p); } public Void onRef(DRefPattern p) { return p.getTarget().getPattern().accept(this); } public Void onText(DTextPattern p) { return null; } public Void onValue(DValuePattern p) { return null; } public Void onZeroOrMore(DZeroOrMorePattern p) { return onUnary(p); } protected Void onUnary(DUnaryPattern p) { return p.getChild().accept(this); } }