public abstract class CompressedSizeEstimator extends Object
| Modifier and Type | Method and Description | 
|---|---|
| CompressedSizeInfo | computeCompressedSizeInfos(int k)Multi threaded version of extracting Compression Size info | 
| CompressedSizeInfoColGroup | estimateCompressedColGroupSize()Method used for compressing into one type of colGroup | 
| EstimationFactors | estimateCompressedColGroupSize(ABitmap ubm)Method used to extract the CompressedSizeEstimationFactors from an constructed UncompressedBitmap. | 
| abstract CompressedSizeInfoColGroup | estimateCompressedColGroupSize(int[] colIndexes)Abstract method for extracting Compressed Size Info of specified columns, together in a single ColGroup | 
public CompressedSizeInfo computeCompressedSizeInfos(int k)
k - The concurrency degree.public CompressedSizeInfoColGroup estimateCompressedColGroupSize()
public abstract CompressedSizeInfoColGroup estimateCompressedColGroupSize(int[] colIndexes)
colIndexes - The Colums to group together inside a ColGrouppublic EstimationFactors estimateCompressedColGroupSize(ABitmap ubm)
ubm - the UncompressedBitmap, either extracted from a sample or from the entier datasetCopyright © 2020 The Apache Software Foundation. All rights reserved.