org.apache.hadoop.mapreduce.lib.partition

接口 InputSampler.Sampler<K,V>

所有已知实现类:

InputSampler.IntervalSampler, InputSampler.RandomSampler, InputSampler.SplitSampler

封闭类:

InputSampler<K,V>

public static interface InputSampler.Sampler<K,V>

Interface to sample using an InputFormat.

方法概要

方法

限定符和类型	方法和说明
K[]	getSample(InputFormat<K,V> inf, Job job) For a given job, collect and return a subset of the keys from the input data.

方法详细资料

getSample

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

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

抛出:

IOException

InterruptedException