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JAXB (JSR 222) reference implementation - JAXB1 build

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/*
 * @(#)$Id: IncludeMergeState.java,v 1.5 2003/07/09 22:52:30 kohsuke Exp $
 *
 * Copyright 2001 Sun Microsystems, Inc. All Rights Reserved.
 * 
 * This software is the proprietary information of Sun Microsystems, Inc.  
 * Use is subject to license terms.
 * 
 */
package com.sun.msv.reader.trex.ng;

import java.util.Set;

import com.sun.msv.grammar.Expression;
import com.sun.msv.grammar.ReferenceExp;
import com.sun.msv.reader.ExpressionOwner;
import com.sun.msv.reader.State;
import com.sun.msv.util.StartTagInfo;

/**
 * parses <include> element as a child of <grammar> element.
 * 
 * @author Kohsuke KAWAGUCHI
 */
public class IncludeMergeState extends com.sun.msv.reader.trex.IncludeMergeState
            implements ExpressionOwner {
    
    protected State createChildState( StartTagInfo tag ) {
        final RELAXNGReader reader = (RELAXNGReader)this.reader;
        if(tag.localName.equals("define"))    return reader.getStateFactory().redefine(this,tag);
        if(tag.localName.equals("start"))    return reader.getStateFactory().redefineStart(this,tag);
        return null;
    }
    
    /** set of ReferenceExps which are redefined by this inclusion. */
    private final Set redefinedPatterns = new java.util.HashSet();
    
    // this class has to implement ExpressionOwner because
    //  state requires this interface.
    public void onEndChild( Expression child ) {
        // if child  element has an error,
        // then it may not return ReferenceExp.
        if(!(child instanceof ReferenceExp))    return;
        
        redefinedPatterns.add(child);
    }
    
    public void endSelf() {
        final RELAXNGReader reader = (RELAXNGReader)this.reader;
        
        ReferenceExp[] patterns = (ReferenceExp[])redefinedPatterns.toArray(new ReferenceExp[0]);
        RELAXNGReader.RefExpParseInfo[] old = new RELAXNGReader.RefExpParseInfo[patterns.length];
        
        // back-up the current values of RefExpParseInfo,
        // and reset the values.
        for( int i=0; i