int function ( ) { return index ; }
returns column index to sort concode_field_sep String preferenceKey concode_elem_sep String SEPARATOR concode_elem_sep int index concode_elem_sep int DEFAULT_INDEX concode_elem_sep boolean ascending concode_elem_sep long serialVersionUID concode_field_sep String getPreferenceKey concode_elem_sep void setAscending concode_elem_sep void getPreferenceValues concode_elem_sep void setPreferenceKey concode_elem_sep void setIndex concode_elem_sep boolean isAscending concode_elem_sep void setPreferenceValues