question: retrieves the mapper class to use for this split . concode_field_sep Class<? extends InputFormat> inputFormatClass concode_elem_sep Class<? extends InputSplit> inputSplitClass concode_elem_sep Configuration conf concode_elem_sep InputSplit inputSplit concode_elem_sep Class<? extends Mapper> mapperClass concode_field_sep void readFields concode_elem_sep Class<?> readClass concode_elem_sep Configuration getConf concode_elem_sep Class<? extends InputFormat> getInputFormatClass concode_elem_sep long getLength concode_elem_sep String[] getLocations concode_elem_sep InputSplit getInputSplit concode_elem_sep String toString concode_elem_sep void write concode_elem_sep void setConf
target: Class < ? extends Mapper > function ( ) { return mapperClass ; }