get the reducer class for the job . concode_field_sep JobID jobId concode_elem_sep Credentials credentials concode_elem_sep UserGroupInformation ugi concode_elem_sep org.apache.hadoop.mapred.JobConf conf concode_field_sep String[] toTimestampStrs concode_elem_sep JobID getJobID concode_elem_sep Path[] getLocalCacheArchives concode_elem_sep int getMaxMapAttempts concode_elem_sep String getUser concode_elem_sep Credentials getCredentials concode_elem_sep String[] getArchiveTimestamps concode_elem_sep Class<? extends Reducer<?,?,?,?>> getCombinerClass concode_elem_sep Class<?> getOutputValueClass concode_elem_sep IntegerRanges getProfileTaskRange concode_elem_sep Path[] getLocalCacheFiles concode_elem_sep Configuration getConfiguration concode_elem_sep boolean getTaskCleanupNeeded concode_elem_sep URI[] getCacheFiles concode_elem_sep Class<?> getOutputKeyClass concode_elem_sep Path[] getFileClassPaths concode_elem_sep int getNumReduceTasks concode_elem_sep String[] getFileTimestamps concode_elem_sep void setJobID concode_elem_sep Path getWorkingDirectory concode_elem_sep Class<? extends InputFormat<?,?>> getInputFormatClass concode_elem_sep String getJobName concode_elem_sep Class<?> getMapOutputKeyClass concode_elem_sep String getProfileParams concode_elem_sep RawComparator<?> getCombinerKeyGroupingComparator concode_elem_sep Class<? extends OutputFormat<?,?>> getOutputFormatClass concode_elem_sep Class<? extends Partitioner<?,?>> getPartitionerClass concode_elem_sep String getJar concode_elem_sep boolean getJobSetupCleanupNeeded concode_elem_sep boolean getSymlink concode_elem_sep URI[] getCacheArchives concode_elem_sep RawComparator<?> getSortComparator concode_elem_sep boolean getProfileEnabled concode_elem_sep RawComparator<?> getGroupingComparator concode_elem_sep int getMaxReduceAttempts concode_elem_sep Class<?> getMapOutputValueClass concode_elem_sep Class<? extends Mapper<?,?,?,?>> getMapperClass concode_elem_sep Path[] getArchiveClassPaths
Class < ? extends Reducer < ? , ? , ? , ? >> function ( ) { return ( Class < ? extends Reducer < ? , ? , ? , ? >> ) conf . getClass ( REDUCE_CLASS_ATTR , Reducer . class ) ; }