private static final String genders[];

    static {
        genders = new String[2];
        genders[0] = "Male";
        genders[1] = "Female";
    }

    public List<String> getAllGenders() {
        return Arrays.asList(genders);
    }

public boolean filterByAge(Object value, Object filter, Locale locale) {
        String filterText = (filter == null) ? null : filter.toString().trim();
        if (filterText == null || filterText.equals("")) {
            return true;
        }

        if (value == null) {
            return false;
        }
        if (!filterText.contains("-")) {
            return (Objects.equals(Integer.valueOf(value.toString()), Integer.valueOf(filterText)));
        } else {
            String[] range = filterText.split("-");
            int rangeBegin = Integer.valueOf(range[0]);
            int rangeEnd = Integer.valueOf(range[1]);

            for (int i = rangeBegin; i < rangeEnd + 1; i++) {
                if (Objects.equals(Integer.valueOf(value.toString()), i)) {
                    return true;
                }
            }
            return false;
        }
    }