org.apache.hadoop.mapreduce
Class Mapper.Context

java.lang.Object
  org.apache.hadoop.mapreduce.JobContext
      org.apache.hadoop.mapreduce.TaskAttemptContext
          org.apache.hadoop.mapreduce.TaskInputOutputContext<KEYIN,VALUEIN,KEYOUT,VALUEOUT>
              org.apache.hadoop.mapreduce.MapContext<KEYIN,VALUEIN,KEYOUT,VALUEOUT>
                  org.apache.hadoop.mapreduce.Mapper.Context

All Implemented Interfaces:

Progressable

Enclosing class:

Mapper<KEYIN,VALUEIN,KEYOUT,VALUEOUT>

public class Mapper.Context
extends MapContext<KEYIN,VALUEIN,KEYOUT,VALUEOUT>

Field Summary

Fields inherited from class org.apache.hadoop.mapreduce.JobContext

CACHE_ARCHIVES_VISIBILITIES, CACHE_FILE_VISIBILITIES, COMBINE_CLASS_ATTR, conf, credentials, INPUT_FORMAT_CLASS_ATTR, JOB_ACL_MODIFY_JOB, JOB_ACL_VIEW_JOB, JOB_CANCEL_DELEGATION_TOKEN, JOB_NAMENODES, MAP_CLASS_ATTR, OUTPUT_FORMAT_CLASS_ATTR, PARTITIONER_CLASS_ATTR, REDUCE_CLASS_ATTR, ugi, USER_LOG_RETAIN_HOURS

Constructor Summary

Mapper.Context(Configuration conf, TaskAttemptID taskid, RecordReader<KEYIN,VALUEIN> reader, RecordWriter<KEYOUT,VALUEOUT> writer, OutputCommitter committer, StatusReporter reporter, InputSplit split)

Method Summary

Methods inherited from class org.apache.hadoop.mapreduce.MapContext

getCurrentKey, getCurrentValue, getInputSplit, nextKeyValue

Methods inherited from class org.apache.hadoop.mapreduce.TaskInputOutputContext

getCounter, getCounter, getOutputCommitter, progress, setStatus, write

Methods inherited from class org.apache.hadoop.mapreduce.TaskAttemptContext

getStatus, getTaskAttemptID

Methods inherited from class org.apache.hadoop.mapreduce.JobContext

getCombinerClass, getConfiguration, getCredentials, getGroupingComparator, getInputFormatClass, getJar, getJobID, getJobName, getMapOutputKeyClass, getMapOutputValueClass, getMapperClass, getNumReduceTasks, getOutputFormatClass, getOutputKeyClass, getOutputValueClass, getPartitionerClass, getReducerClass, getSortComparator, getWorkingDirectory

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Mapper.Context

public Mapper.Context(Configuration conf,
                      TaskAttemptID taskid,
                      RecordReader<KEYIN,VALUEIN> reader,
                      RecordWriter<KEYOUT,VALUEOUT> writer,
                      OutputCommitter committer,
                      StatusReporter reporter,
                      InputSplit split)
               throws IOException,
                      InterruptedException

Throws:

IOException

InterruptedException