question: get the data to filter for concode_field_sep boolean filter concode_elem_sep String filterData concode_elem_sep ResultsFilter customFilter concode_elem_sep boolean indexData concode_elem_sep String filterColumn concode_field_sep void setCustomFilter concode_elem_sep void setIndexData concode_elem_sep String getFilterColumn concode_elem_sep boolean hasIndex concode_elem_sep void filterData concode_elem_sep boolean hasFilter concode_elem_sep Map<Character,Integer> createIndex concode_elem_sep void setFilter concode_elem_sep void setFilterColumn concode_elem_sep void setFilterData
target: String function ( ) { return filterData ; }