protected SelectListParameter<GenomicIntervalTypeEnum> createIntervalTypeParameter() {
   OptionList<GenomicIntervalTypeEnum> options = new OptionList<GenomicIntervalTypeEnum>();
   options.addOption(
       GenomicIntervalTypeEnum.GENE_NAME.getValue(), GenomicIntervalTypeEnum.GENE_NAME);
   options.addOption(
       GenomicIntervalTypeEnum.CHROMOSOME_COORDINATES.getValue(),
       GenomicIntervalTypeEnum.CHROMOSOME_COORDINATES);
   ValueSelectedHandler<GenomicIntervalTypeEnum> handler =
       new ValueSelectedHandler<GenomicIntervalTypeEnum>() {
         @Override
         public void valueSelected(GenomicIntervalTypeEnum value) {
           criterion.setGenomicIntervalType(value);
           setIntervalParameters();
         }
       };
   SelectListParameter<GenomicIntervalTypeEnum> intervalTypeParameter =
       new SelectListParameter<GenomicIntervalTypeEnum>(
           getParameters().size(),
           getRow().getRowIndex(),
           options,
           handler,
           criterion.getGenomicIntervalType());
   intervalTypeParameter.setLabel("Genome Interval");
   intervalTypeParameter.setUpdateFormOnChange(true);
   return intervalTypeParameter;
 }