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Lucene example source code file (SpanQueryBuilderFactory.java)

This example Lucene source code file (SpanQueryBuilderFactory.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Lucene tags/keywords

dom, hashmap, hashmap, no, parserexception, parserexception, query, query, spanquery, spanquerybuilder, spanquerybuilder, spanquerybuilderfactory, spanqueryobjectbuilder, util

The Lucene SpanQueryBuilderFactory.java source code

package org.apache.lucene.xmlparser.builders;

import java.util.HashMap;

import org.apache.lucene.search.Query;
import org.apache.lucene.search.spans.SpanQuery;
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 SpanQueryBuilderFactory implements SpanQueryBuilder {

	HashMap<String,SpanQueryBuilder> builders=new HashMap();
	
	public Query getQuery(Element e) throws ParserException {
		return getSpanQuery(e);
	}
	public void addBuilder(String nodeName,SpanQueryBuilder builder)
	{
		builders.put(nodeName,builder);
	}
	public SpanQuery getSpanQuery(Element e) throws ParserException
	{
		SpanQueryBuilder builder= builders.get(e.getNodeName());
		if(builder==null)
		{
			throw new ParserException("No SpanQueryObjectBuilder defined for node "+e.getNodeName()); 
		}
		return builder.getSpanQuery(e); 
	}

}

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