All Classes

Class	Description
BinaryDocValueSelector	Select documents using binary doc values
BPIndexReorderer	Implementation of "recursive graph bisection", also called "bipartite graph partitioning" and often abbreviated BP, an approach to doc ID assignment that aims at reducing the sum of the log gap between consecutive postings.
BPIndexReorderer.NotEnoughRAMException	Exception that is thrown when not enough RAM is available.
ByteTrackingIndexOutput	An IndexOutput that wraps another instance and tracks the number of bytes written
ByteWritesTrackingDirectoryWrapper	FilterDirectory that tracks write amplification factor
CollectorMemoryTracker	Default implementation of MemoryTracker that tracks allocations and allows setting a memory limit per collector
DirectIODirectory	A Directory implementation for all Unixes and Windows that uses DIRECT I/O to bypass OS level IO caching during merging.
DiversifiedTopDocsCollector	A TopDocsCollector that controls diversity in results by ensuring no more than maxHitsPerKey results from a common source are collected in the final results.
DiversifiedTopDocsCollector.ScoreDocKey	An extension to ScoreDoc that includes a key used for grouping purposes
DocValuesStats<T>	Holds statistics for a DocValues field.
DocValuesStats.DoubleDocValuesStats	Holds DocValues statistics for a numeric field storing double values.
DocValuesStats.LongDocValuesStats	Holds DocValues statistics for a numeric field storing long values.
DocValuesStats.NumericDocValuesStats<T extends Number>	Holds statistics for a numeric DocValues field.
DocValuesStats.SortedDocValuesStats	Holds statistics for a sorted DocValues field.
DocValuesStats.SortedDoubleDocValuesStats	Holds DocValues statistics for a sorted-numeric field storing double values.
DocValuesStats.SortedLongDocValuesStats	Holds DocValues statistics for a sorted-numeric field storing long values.
DocValuesStats.SortedNumericDocValuesStats<T extends Number>	Holds statistics for a sorted-numeric DocValues field.
DocValuesStats.SortedSetDocValuesStats	Holds statistics for a sorted-set DocValues field.
DocValuesStatsCollector	A Collector which computes statistics for a DocValues field.
GetTermInfo	Utility to get document frequency and total number of occurrences (sum of the tf for each doc) of a term.
HardlinkCopyDirectoryWrapper	This directory wrapper overrides Directory.copyFrom(Directory, String, String, IOContext) in order to optionally use a hard-link instead of a full byte by byte file copy if applicable.
HighFreqTerms	HighFreqTerms class extracts the top n most frequent terms (by document frequency) from an existing Lucene index and reports their document frequency.
HighFreqTerms.DocFreqComparator	Compares terms by docTermFreq
HighFreqTerms.TotalTermFreqComparator	Compares terms by totalTermFreq
IndexMergeTool	Merges indices specified on the command line into the index specified as the first command line argument.
IndexRearranger	Copy and rearrange index according to document selectors, from input dir to output dir.
IndexRearranger.DocumentSelector	Select document within a CodecReader
IndexSplitter	Command-line tool that enables listing segments in an index, copying specific segments to another index, and deleting segments from an index.
LazyDocument	Defers actually loading a field's value until you ask for it.
ListOfOutputs<T>	Wraps another Outputs implementation and encodes one or more of its output values.
MemoryAccountingBitsetCollector	Bitset collector which supports memory tracking
MemoryTracker	Tracks dynamic allocations/deallocations of memory for transient objects
MultiPassIndexSplitter	This tool splits input index into multiple equal parts.
PKIndexSplitter	Split an index based on a Query.
RAFDirectory	A straightforward implementation of FSDirectory using java.io.RandomAccessFile.
SweetSpotSimilarity	A similarity with a lengthNorm that provides for a "plateau" of equally good lengths, and tf helper functions.
TermStats	Holder for a term along with its statistics (TermStats.docFreq and TermStats.totalTermFreq).
UpToTwoPositiveIntOutputs	An FST Outputs implementation where each output is one or two non-negative long values.
UpToTwoPositiveIntOutputs.TwoLongs	Holds two long outputs.