package ubic.basecode.ontology.jena;
   
   import com.hp.hpl.jena.ontology.OntModel;
   import com.hp.hpl.jena.rdf.model.Resource;
   import com.hp.hpl.jena.util.iterator.ExtendedIterator;
   import ubic.basecode.ontology.search.OntologySearchException;
   
   import java.util.List;
   import java.util.stream.Stream;
  
  interface SearchIndex extends AutoCloseable {
  
      /**
       * Find RDF nodes matching the given query string.
       */
      List<JenaSearchResult> search( OntModel model, String queryString, int maxResults ) throws OntologySearchException;
  
      /**
       * Find classes that match the query string.
       *
       * @param model that goes with the index
       * @return Collection of OntologyTerm objects
       */
      List<JenaSearchResult> searchClasses( OntModel model, String queryString, int maxResults ) throws OntologySearchException;
  
      /**
       * Find individuals that match the query string
       *
       * @param model that goes with the index
       * @return Collection of OntologyTerm objects
       */
      List<JenaSearchResult> searchIndividuals( OntModel model, String queryString, int maxResults ) throws OntologySearchException;
  
      class JenaSearchResult {
  
          public final Resource result;
          public final double score;
  
          JenaSearchResult( Resource result, double score ) {
              this.result = result;
              this.score = score;
          }
  
          @Override
          public String toString() {
              return String.format( "%s score=%f", result, score );
          }
      }
  }