code: package it.unibz.inf.ontop.dbschema.impl;
  
  import com.google.inject.assistedinject.Assisted;
  import com.google.inject.assistedinject.AssistedInject;
  import it.unibz.inf.ontop.exception.MetadataExtractionException;
  import it.unibz.inf.ontop.injection.CoreSingletons;
  import it.unibz.inf.ontop.model.type.TypeFactory;
  
  import java.sql.Connection;
  
  public class H2DBMetadataProvider extends DefaultSchemaCatalogDBMetadataProvider {
  
      @AssistedInject
      H2DBMetadataProvider(@Assisted Connection connection, CoreSingletons coreSingletons) throws MetadataExtractionException {
          super(connection, metadata -> new SQLStandardQuotedIDFactory(), coreSingletons,
                 "SELECT DATABASE() AS TABLE_CAT, SCHEMA() AS TABLE_SCHEM");
          // http://www.h2database.com/html/functions.html#current_schema
          // the .getSchema() does work for OntopExtractDBMetadataTest
      }
  }
  