code: public void addWhere(final String _where)
          throws EFapsException
      {
          if (_where != null) {
              final List<AbstractWhere> wheres = InvokerUtil.analyzeWheres(_where);
              QWhereSection whereSection = null;
              for (final AbstractWhere where : wheres) {
                  final AbstractQPart part = QueryBuilder.getQPart(where);
                  if (whereSection == null) {
                      whereSection = new QWhereSection(part);
                  } else {
                      whereSection.setPart(new QAnd(whereSection.getPart(), part));
                  }
              }
              this.selectPart.setWhereSection(whereSection);
          }
      }
docs: Adds the where.
  
  @param _where the where
  @throws EFapsException on error