set the converter to use to derive the key from the item concode_field_sep boolean delete concode_elem_sep Converter<V,K> itemKeyMapper concode_field_sep void init concode_elem_sep void afterPropertiesSet concode_elem_sep void writeKeyValue concode_elem_sep void write concode_elem_sep void setDelete
void function ( Converter < V , K > arg0 ) { this . itemKeyMapper = arg0 ; }