long function ( ) { return id ; }
gets the id of the this node . concode_field_sep int distance concode_elem_sep List<LocationNode> sons concode_elem_sep LocationNode father concode_elem_sep boolean sonsFound concode_elem_sep long id concode_field_sep int getDistance concode_elem_sep LocationNode getFather concode_elem_sep void removeSon concode_elem_sep List<LocationNode> getSons concode_elem_sep void setFather concode_elem_sep void findSons