creates a parser for specified talker and sentence type . this method is mainly intended to be used when custom parsers have been registered in the factory . the returned instance needs to be cast to corresponding sentence interface . concode_field_sep SentenceFactory instance concode_elem_sep Map<String,Class<? extends SentenceParser>> parsers concode_field_sep void unregisterParser concode_elem_sep boolean hasParser concode_elem_sep List<String> listParsers concode_elem_sep void reset concode_elem_sep void registerParser concode_elem_sep SentenceFactory getInstance concode_elem_sep Sentence createParserImpl