a default method that assumes the key is com.tinkerpop.gremlin.process.computer.mapreduce.nullobject . concode_field_sep NullObject INSTANCE concode_elem_sep String NULL_OBJECT concode_field_sep void reduce concode_elem_sep void loadState concode_elem_sep Optional<Comparator<RK>> getReduceKeySort concode_elem_sep void addResultToMemory concode_elem_sep Optional<Comparator<MK>> getMapKeySort concode_elem_sep NullObject instance concode_elem_sep int compareTo concode_elem_sep R generateFinalResult concode_elem_sep boolean doStage concode_elem_sep int hashCode concode_elem_sep boolean equals concode_elem_sep void storeState concode_elem_sep String toString concode_elem_sep void map concode_elem_sep void combine concode_elem_sep String getMemoryKey
void function ( final OV arg0 ) { this . emit ( ( OK ) MapReduce . NullObject . instance ( ) , arg0 ) ; }