/*
* Created on 25-Jan-2006
*/
package org.apache.lucene.xmlparser.builders;
import org.apache.lucene.search.Filter;
import org.apache.lucene.search.FilteredQuery;
import org.apache.lucene.search.Query;
import org.apache.lucene.xmlparser.DOMUtils;
import org.apache.lucene.xmlparser.FilterBuilder;
import org.apache.lucene.xmlparser.ParserException;
import org.apache.lucene.xmlparser.QueryBuilder;
import org.w3c.dom.Element;
/**
* @author maharwood
*/
public class FilteredQueryBuilder implements QueryBuilder {
private FilterBuilder filterFactory;
private QueryBuilder queryFactory;
public FilteredQueryBuilder(FilterBuilder filterFactory, QueryBuilder queryFactory)
{
this.filterFactory=filterFactory;
this.queryFactory=queryFactory;
}
/* (non-Javadoc)
* @see org.apache.lucene.xmlparser.QueryObjectBuilder#process(org.w3c.dom.Element)
*/
public Query getQuery(Element e) throws ParserException {
Element filterElement=DOMUtils.getChildByTagOrFail(e,"Filter");
filterElement=DOMUtils.getFirstChildOrFail(filterElement);
Filter f=filterFactory.getFilter(filterElement);
Element queryElement=DOMUtils.getChildByTagOrFail(e,"Query");
queryElement=DOMUtils.getFirstChildOrFail(queryElement);
Query q=queryFactory.getQuery(queryElement);
FilteredQuery fq = new FilteredQuery(q,f);
fq.setBoost(DOMUtils.getAttribute(e,"boost",1.0f));
return fq;
}
}