public DocumentExtractor(Query preparedQuery,
    IndexSearcher searcher,
    SearchFactoryImplementor searchFactoryImplementor,
    String projection) 
{
		this.searchFactoryImplementor = searchFactoryImplementor;
		this.projection = projection;
		this.searcher = searcher;
		this.preparedQuery = preparedQuery;
}

 public EntityInfo extract(Hits hits,
    int index) throws IOException 
{
		Document doc = hits.doc( index );
		//TODO if we are only looking for score (unlikely), avoid accessing doc (lazy load)
		EntityInfo entityInfo = extract( doc );
		Object[] eip = entityInfo.projection;
		if ( eip != null && eip.length  > 0 ) {
			for (int x = 0; x <  projection.length; x++) {
				if ( ProjectionConstants.SCORE.equals( projection[x] ) ) {
					eip[x] = hits.score( index );
				}
				else if ( ProjectionConstants.ID.equals( projection[x] ) ) {
					eip[x] = entityInfo.id;
				}
				else if ( ProjectionConstants.DOCUMENT.equals( projection[x] ) ) {
					eip[x] = doc;
				}
				else if ( ProjectionConstants.DOCUMENT_ID.equals( projection[x] ) ) {
					eip[x] = hits.id( index );
				}
				else if ( ProjectionConstants.BOOST.equals( projection[x] ) ) {
					eip[x] = doc.getBoost();
				}
				else if ( ProjectionConstants.EXPLANATION.equals( projection[x] ) ) {
					eip[x] = searcher.explain( preparedQuery, hits.id( index ) );
				}
				else if ( ProjectionConstants.THIS.equals( projection[x] ) ) {
					//THIS could be projected more than once
					//THIS loading delayed to the Loader phase
					entityInfo.indexesOfThis.add(x);
				}
			}
		}
		return entityInfo;
}