org.apache.hadoop.mapred.lib

Interface InputSampler.Sampler<K,V>

All Superinterfaces:

InputSampler.Sampler<K,V>

Enclosing class:

InputSampler<K,V>

public static interface InputSampler.Sampler<K,V>
extends InputSampler.Sampler<K,V>

Interface to sample using an InputFormat.

Method Summary

Methods

Modifier and Type	Method and Description
K[]	getSample(InputFormat<K,V> inf, JobConf job) For a given job, collect and return a subset of the keys from the input data.

Methods inherited from interface org.apache.hadoop.mapreduce.lib.partition.InputSampler.Sampler

getSample

Method Detail

getSample

K[] getSample(InputFormat<K,V> inf,
            JobConf job)
              throws IOException

For a given job, collect and return a subset of the keys from the input data.

Throws:

IOException