{
String queryFeatureName = queryFeature.getName();
if ( queryFeatureName.equals("Query by Experimenter")) {
QueryByExperimenter experimenterQuery = new QueryByExperimenter(databaseOperations, statementExecutor, queryFeature, getTimeStamp(), user.getID());
tuples = experimenterQuery.getTuples();
}
if (queryFeatureName.equals("Query by Start Date")) {
QueryByDate dateQuery = new QueryByDate(databaseOperations, statementExecutor, queryFeature, getTimeStamp(), user.getID());