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java.lang.Objectorg.apache.hadoop.mapreduce.JobContext
org.apache.hadoop.mapreduce.TaskAttemptContext
org.apache.hadoop.mapreduce.TaskInputOutputContext<KEYIN,VALUEIN,KEYOUT,VALUEOUT>
org.apache.hadoop.mapreduce.ReduceContext<KEYIN,VALUEIN,KEYOUT,VALUEOUT>
org.apache.hadoop.mapreduce.Reducer.Context
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigMapReduce.Reduce.IllustratorContext
public class PigMapReduce.Reduce.IllustratorContext
Nested Class Summary |
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Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.ReduceContext |
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org.apache.hadoop.mapreduce.ReduceContext.ValueIterable, org.apache.hadoop.mapreduce.ReduceContext.ValueIterator |
Field Summary |
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Fields inherited from class org.apache.hadoop.mapreduce.ReduceContext |
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reporter |
Fields inherited from class org.apache.hadoop.mapreduce.JobContext |
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COMBINE_CLASS_ATTR, conf, INPUT_FORMAT_CLASS_ATTR, MAP_CLASS_ATTR, OUTPUT_FORMAT_CLASS_ATTR, PARTITIONER_CLASS_ATTR, REDUCE_CLASS_ATTR |
Constructor Summary | |
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PigMapReduce.Reduce.IllustratorContext(org.apache.hadoop.mapred.jobcontrol.Job job,
List<Pair<PigNullableWritable,org.apache.hadoop.io.Writable>> input,
POPackage pkg)
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Method Summary | |
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PigNullableWritable |
getCurrentKey()
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Iterable<NullableTuple> |
getValues()
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boolean |
nextKey()
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void |
progress()
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void |
write(PigNullableWritable k,
org.apache.hadoop.io.Writable t)
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Methods inherited from class org.apache.hadoop.mapreduce.ReduceContext |
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getCurrentValue, nextKeyValue |
Methods inherited from class org.apache.hadoop.mapreduce.TaskInputOutputContext |
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getCounter, getCounter, getOutputCommitter, setStatus |
Methods inherited from class org.apache.hadoop.mapreduce.TaskAttemptContext |
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getStatus, getTaskAttemptID |
Methods inherited from class org.apache.hadoop.mapreduce.JobContext |
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getCombinerClass, getConfiguration, getGroupingComparator, getInputFormatClass, getJar, getJobID, getJobName, getMapOutputKeyClass, getMapOutputValueClass, getMapperClass, getNumReduceTasks, getOutputFormatClass, getOutputKeyClass, getOutputValueClass, getPartitionerClass, getReducerClass, getSortComparator, getWorkingDirectory |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public PigMapReduce.Reduce.IllustratorContext(org.apache.hadoop.mapred.jobcontrol.Job job, List<Pair<PigNullableWritable,org.apache.hadoop.io.Writable>> input, POPackage pkg) throws IOException, InterruptedException
IOException
InterruptedException
Method Detail |
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public PigNullableWritable getCurrentKey()
getCurrentKey
in class org.apache.hadoop.mapreduce.ReduceContext<PigNullableWritable,NullableTuple,PigNullableWritable,org.apache.hadoop.io.Writable>
public boolean nextKey()
nextKey
in class org.apache.hadoop.mapreduce.ReduceContext<PigNullableWritable,NullableTuple,PigNullableWritable,org.apache.hadoop.io.Writable>
public Iterable<NullableTuple> getValues()
getValues
in class org.apache.hadoop.mapreduce.ReduceContext<PigNullableWritable,NullableTuple,PigNullableWritable,org.apache.hadoop.io.Writable>
public void write(PigNullableWritable k, org.apache.hadoop.io.Writable t)
write
in class org.apache.hadoop.mapreduce.TaskInputOutputContext<PigNullableWritable,NullableTuple,PigNullableWritable,org.apache.hadoop.io.Writable>
public void progress()
progress
in interface org.apache.hadoop.util.Progressable
progress
in class org.apache.hadoop.mapreduce.TaskInputOutputContext<PigNullableWritable,NullableTuple,PigNullableWritable,org.apache.hadoop.io.Writable>
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