org.apache.hadoop.mapreduce.lib.partition

Interface InputSampler.Sampler<K,V>

All Known Implementing Classes:

InputSampler.IntervalSampler, InputSampler.RandomSampler, InputSampler.SplitSampler

Enclosing class:

InputSampler<K,V>

public static interface 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, Job job) For a given job, collect and return a subset of the keys from the input data.

Method Detail

getSample

K[] getSample(InputFormat<K,V> inf,
            Job job)
              throws java.io.IOException,
                     java.lang.InterruptedException

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

Throws:

java.io.IOException

java.lang.InterruptedException