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| Packages that use TaskInputOutputContext | |
|---|---|
| org.apache.hadoop.mapreduce | |
| org.apache.hadoop.mapreduce.lib.output | |
| Uses of TaskInputOutputContext in org.apache.hadoop.mapreduce |
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| Subinterfaces of TaskInputOutputContext in org.apache.hadoop.mapreduce | |
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interface |
MapContext<KEYIN,VALUEIN,KEYOUT,VALUEOUT>
The context that is given to the Mapper. |
interface |
ReduceContext<KEYIN,VALUEIN,KEYOUT,VALUEOUT>
The context passed to the Reducer. |
| Uses of TaskInputOutputContext in org.apache.hadoop.mapreduce.lib.output |
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| Methods in org.apache.hadoop.mapreduce.lib.output with parameters of type TaskInputOutputContext | |
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static Path |
FileOutputFormat.getPathForWorkFile(TaskInputOutputContext<?,?,?,?> context,
String name,
String extension)
Helper function to generate a Path for a file that is unique for
the task within the job output directory. |
static Path |
FileOutputFormat.getWorkOutputPath(TaskInputOutputContext<?,?,?,?> context)
Get the Path to the task's temporary output directory
for the map-reduce job
Tasks' Side-Effect Files |
| Constructors in org.apache.hadoop.mapreduce.lib.output with parameters of type TaskInputOutputContext | |
|---|---|
MultipleOutputs(TaskInputOutputContext<?,?,KEYOUT,VALUEOUT> context)
Creates and initializes multiple outputs support, it should be instantiated in the Mapper/Reducer setup method. |
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