Package org.apache.lucene.misc.search
Class DocValuesStats.DoubleDocValuesStats
- java.lang.Object
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- org.apache.lucene.misc.search.DocValuesStats<T>
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- org.apache.lucene.misc.search.DocValuesStats.NumericDocValuesStats<Double>
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- org.apache.lucene.misc.search.DocValuesStats.DoubleDocValuesStats
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- Enclosing class:
- DocValuesStats<T>
public static final class DocValuesStats.DoubleDocValuesStats extends DocValuesStats.NumericDocValuesStats<Double>
Holds DocValues statistics for a numeric field storingdoublevalues.
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Nested Class Summary
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Nested classes/interfaces inherited from class org.apache.lucene.misc.search.DocValuesStats
DocValuesStats.DoubleDocValuesStats, DocValuesStats.LongDocValuesStats, DocValuesStats.NumericDocValuesStats<T extends Number>, DocValuesStats.SortedDocValuesStats, DocValuesStats.SortedDoubleDocValuesStats, DocValuesStats.SortedLongDocValuesStats, DocValuesStats.SortedNumericDocValuesStats<T extends Number>, DocValuesStats.SortedSetDocValuesStats
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Field Summary
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Fields inherited from class org.apache.lucene.misc.search.DocValuesStats.NumericDocValuesStats
mean, ndv, variance
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Fields inherited from class org.apache.lucene.misc.search.DocValuesStats
field, max, min
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Constructor Summary
Constructors Constructor Description DoubleDocValuesStats(String field)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected voiddoAccumulate(int count)Called afterDocValuesStats.accumulate(int)was processed and verified that the document has a value for the field.Doublesum()Returns the sum of values of the field.-
Methods inherited from class org.apache.lucene.misc.search.DocValuesStats.NumericDocValuesStats
hasValue, init, mean, stdev, variance
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Constructor Detail
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DoubleDocValuesStats
public DoubleDocValuesStats(String field)
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Method Detail
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doAccumulate
protected void doAccumulate(int count) throws IOExceptionDescription copied from class:DocValuesStatsCalled afterDocValuesStats.accumulate(int)was processed and verified that the document has a value for the field. Implementations should update the statistics based on the value of the current document.- Specified by:
doAccumulatein classDocValuesStats<Double>- Parameters:
count- the updated number of documents with value for this field.- Throws:
IOException
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sum
public Double sum()
Description copied from class:DocValuesStats.NumericDocValuesStatsReturns the sum of values of the field. Note that if the values are large, thesummight overflow.- Specified by:
sumin classDocValuesStats.NumericDocValuesStats<Double>
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