org.apache.hadoop.hbase.mapreduce.hadoopbackport
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

K[]	getSample(org.apache.hadoop.mapreduce.InputFormat<K,V> inf, org.apache.hadoop.mapreduce.Job job) For a given job, collect and return a subset of the keys from the input data.

Method Detail

getSample

K[] getSample(org.apache.hadoop.mapreduce.InputFormat<K,V> inf,
              org.apache.hadoop.mapreduce.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