| Interface | Description | 
|---|---|
| PartialOutputCommitter | Interface for an  OutputCommitterimplementing partial commit of task output, as during preemption. | 
| Class | Description | 
|---|---|
| BindingPathOutputCommitter | This is a special committer which creates the factory for the committer and
 runs off that. | 
| FileOutputCommitter | An  OutputCommitterthat commits files specified 
 in job output directory i.e. | 
| FileOutputFormat<K,V> | A base class for  OutputFormats that read fromFileSystems. | 
| FilterOutputFormat<K,V> | FilterOutputFormat is a convenience class that wraps OutputFormat. | 
| LazyOutputFormat<K,V> | A Convenience class that creates output lazily. | 
| MapFileOutputFormat | An  OutputFormatthat writesMapFiles. | 
| MultipleOutputs<KEYOUT,VALUEOUT> | The MultipleOutputs class simplifies writing output data 
 to multiple outputs | 
| NullOutputFormat<K,V> | Consume all outputs and put them in /dev/null. | 
| PartialFileOutputCommitter | An  OutputCommitterthat commits files specified
 in job output directory i.e. | 
| PathOutputCommitter | A committer which somehow commits data written to a working directory
 to the final directory during the commit process. | 
| PathOutputCommitterFactory | A factory for committers implementing the  PathOutputCommittermethods, and so can be used fromFileOutputFormat. | 
| SequenceFileAsBinaryOutputFormat | An  OutputFormatthat writes keys, 
 values toSequenceFiles in binary(raw) format | 
| SequenceFileOutputFormat<K,V> | An  OutputFormatthat writesSequenceFiles. | 
| TextOutputFormat<K,V> | An  OutputFormatthat writes plain text files. | 
| Enum | Description | 
|---|---|
| FileOutputFormatCounter | 
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