content: package com.japisoft.editix.ui.container.xpath;
  
  import javax.xml.xpath.XPathConstants;
  import javax.xml.xpath.XPathExpression;
  
  import org.w3c.dom.Node;
  
  /**
  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 XPathRunnerResultObject {
  
  	private Node sourceNode;
  	private Node xpathResultNode;
  	private XPathExpression xpathEngine;
  	private String value;
  
  	public XPathRunnerResultObject( 
  			Node sourceNode, 
  			XPathExpression xe ) {
  		this.sourceNode = sourceNode;
  		this.xpathEngine = xe;
  	}
  
  	public Node getSourceNode() {
  		return sourceNode;
  	}
  
  	public String getValue() {
  		if ( value == null ) {
  			try {
  				xpathResultNode = ( Node )xpathEngine.evaluate( 
  						sourceNode, 
  						XPathConstants.NODE 
  				);
  				if ( xpathResultNode != null ) {
  					value = xpathResultNode.getNodeValue();
  				}
  			} catch( Exception exc ) {
  				value = "XPath Error";
  			}
  		}
  		return value;
  	}
  
  	public void setValue( String value ) {
  		if ( xpathResultNode != null ) {
  			xpathResultNode.setNodeValue( value );
  			this.value = value;
  		}
  	}
  
  }
  