content: package com.japisoft.dtdparser.node;
  
  import java.io.*;
  
  import com.japisoft.dtdparser.CannotFindElementException;
  
  /**
  This program is available under two licenses : 
  
  1. For non commercial usage : 
  
  This program is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.
  
  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.
  
  You should have received a copy of the GNU General Public License
  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  
  2. For commercial usage :
  
  You need to get a commercial license for source usage at : 
  
  http://www.editix.com/buy.html
  
  Copyright (c) 2018 Alexandre Brillant - JAPISOFT SARL - http://www.japisoft.com
  
  @author Alexandre Brillant - abrillant@japisoft.com
  @author JAPISOFT SARL - http://www.japisoft.com
  
  */
  public class ElementRefDTDNode
  	extends ElementDTDNode
  	implements DocumentWritable {
  	public ElementRefDTDNode() {
  		super();
  		setNodeType(ELEMENT_REF);
  	}
  
  	/** This name is the reference. You can find the real ELEMENT by the
  	 * <code>RootDTDNode</code> */
  	public ElementRefDTDNode(String name) {
  		super(name);
  		setNodeType(ELEMENT_REF);
  	}
  
  	/** This is the max of the occurence between this element ref
  	 * and the element set */
  	public int getOperator() {
  //		ElementSetDTDNode set = (ElementSetDTDNode) getDTDParentNode();
  //		return Math.max(set.getOperator(), super.getOperator());
  		return super.getOperator();
  	}
  
  	public String toString() {
  		return "[ELEMENTREF] " + getName() + getOperatorString();
  	}
  
  	/** @return the reference node: null value means an error in the DTD */
  	public ElementDTDNode getReferenceNode() {
  		if (getName() == null)
  			return null;
  		try {
  			return getRoot().getElementDefinitionByName(getName());
  		} catch( CannotFindElementException e ) {
  			return null;
  		}
  	}
  
  	public void writeDocument(PrintWriter output) throws IOException {
  		ElementDTDNode ref = getReferenceNode();
  		if (ref != null)
  			ref.writeDocument(output);
  	}
  
  }
  
  // ElementRefDTDNode ends here
  