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XML query parser

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package org.apache.lucene.xmlparser.builders;

import org.apache.lucene.index.Term;
import org.apache.lucene.search.spans.SpanQuery;
import org.apache.lucene.search.payloads.PayloadTermQuery;
import org.apache.lucene.search.payloads.AveragePayloadFunction;
import org.apache.lucene.xmlparser.DOMUtils;
import org.apache.lucene.xmlparser.ParserException;
import org.w3c.dom.Element;

/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * 
 */
public class BoostingTermBuilder extends SpanBuilderBase
{

	public SpanQuery getSpanQuery(Element e) throws ParserException
	{
 		String fieldName=DOMUtils.getAttributeWithInheritanceOrFail(e,"fieldName");
 		String value=DOMUtils.getNonBlankTextOrFail(e);
  		PayloadTermQuery btq = new PayloadTermQuery(new Term(fieldName,value), new AveragePayloadFunction());

  		btq.setBoost(DOMUtils.getAttribute(e,"boost",1.0f));
		return btq;

	}

}