org.apache.lucene.facet.search.sampling
Class RepeatableSampler

java.lang.Object
  extended by org.apache.lucene.facet.search.sampling.Sampler
      extended by org.apache.lucene.facet.search.sampling.RepeatableSampler

public class RepeatableSampler
extends Sampler

Take random samples of large collections.

WARNING: This API is experimental and might change in incompatible ways in the next release.

Nested Class Summary
 
Nested classes/interfaces inherited from class org.apache.lucene.facet.search.sampling.Sampler
Sampler.SampleResult
 
Field Summary
 
Fields inherited from class org.apache.lucene.facet.search.sampling.Sampler
samplingParams
 
Constructor Summary
RepeatableSampler(SamplingParams params)
           
 
Method Summary
protected  Sampler.SampleResult createSample(ScoredDocIDs docids, int actualSize, int sampleSetSize)
          Create and return a sample of the input set
 
Methods inherited from class org.apache.lucene.facet.search.sampling.Sampler
getSampleFixer, getSampleSet, getSamplingParams, overSampledSearchParams, shouldSample, trimResult
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

RepeatableSampler

public RepeatableSampler(SamplingParams params)
Method Detail

createSample

protected Sampler.SampleResult createSample(ScoredDocIDs docids,
                                            int actualSize,
                                            int sampleSetSize)
                                     throws IOException
Description copied from class: Sampler
Create and return a sample of the input set

Specified by:
createSample in class Sampler
Parameters:
docids - input set out of which a sample is to be created
actualSize - original size of set, prior to sampling
sampleSetSize - required size of sample set
Returns:
sample of the input set in the required size
Throws:
IOException


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