Stats (Lucene 8.9.0 API)乐学网一站式学习平台

java.lang.Object
- org.apache.lucene.codecs.blocktree.Stats

```
public class Stats
extends Object
```
BlockTree statistics for a single field returned by FieldReader.getStats().

NOTE: This API is for internal purposes only and might change in incompatible ways in the next release.

Field Summary

Fields
Modifier and Type	Field and Description
`int[]`	`blockCountByPrefixLen` Number of blocks at each prefix depth.
`long[]`	`compressionAlgorithms` Number of times each compression method has been used.
`String`	`field` Field name.
`int`	`floorBlockCount` The number of floor blocks (meta-blocks larger than the allowed `maxItemsPerBlock`) in the terms file.
`int`	`floorSubBlockCount` The number of sub-blocks within the floor blocks.
`long`	`indexNumBytes` Byte size of the index.
`int`	`mixedBlockCount` The number of "internal" blocks (that have both terms and sub-blocks).
`int`	`nonFloorBlockCount` The number of normal (non-floor) blocks in the terms file.
`String`	`segment` Segment name.
`int`	`subBlocksOnlyBlockCount` The number of "internal" blocks that do not contain terms (have only sub-blocks).
`int`	`termsOnlyBlockCount` The number of "leaf" blocks (blocks that have only terms).
`int`	`totalBlockCount` Total number of blocks.
`long`	`totalBlockOtherBytes` Total bytes stored by the `PostingsReaderBase`, plus the other few vInts stored in the frame.
`long`	`totalBlockStatsBytes` Total number of bytes used to store term stats (not including what the `PostingsReaderBase` stores.
`long`	`totalBlockSuffixBytes` Total number of bytes used to store term suffixes.
`long`	`totalTermBytes` Total number of bytes (sum of term lengths) across all terms in the field.
`long`	`totalTermCount` Total number of terms in the field.
`long`	`totalUncompressedBlockSuffixBytes` Total number of suffix bytes before compression.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type Method and Description

String toString()
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`String`	`toString()`

- Field Detail
  - indexNumBytes
```
public long indexNumBytes
```
    Byte size of the index.
  - totalTermCount
```
public long totalTermCount
```
    Total number of terms in the field.
  - totalTermBytes
```
public long totalTermBytes
```
    Total number of bytes (sum of term lengths) across all terms in the field.
  - nonFloorBlockCount
```
public int nonFloorBlockCount
```
    The number of normal (non-floor) blocks in the terms file.
  - floorBlockCount
```
public int floorBlockCount
```
    The number of floor blocks (meta-blocks larger than the allowed maxItemsPerBlock) in the terms file.
  - floorSubBlockCount
```
public int floorSubBlockCount
```
    The number of sub-blocks within the floor blocks.
  - mixedBlockCount
```
public int mixedBlockCount
```
    The number of "internal" blocks (that have both terms and sub-blocks).
  - termsOnlyBlockCount
```
public int termsOnlyBlockCount
```
    The number of "leaf" blocks (blocks that have only terms).
  - subBlocksOnlyBlockCount
```
public int subBlocksOnlyBlockCount
```
    The number of "internal" blocks that do not contain terms (have only sub-blocks).
  - totalBlockCount
```
public int totalBlockCount
```
    Total number of blocks.
  - blockCountByPrefixLen
```
public int[] blockCountByPrefixLen
```
    Number of blocks at each prefix depth.
  - totalBlockSuffixBytes
```
public long totalBlockSuffixBytes
```
    Total number of bytes used to store term suffixes.
  - compressionAlgorithms
```
public final long[] compressionAlgorithms
```
    Number of times each compression method has been used. 0 = uncompressed 1 = lowercase_ascii 2 = LZ4
  - totalUncompressedBlockSuffixBytes
```
public long totalUncompressedBlockSuffixBytes
```
    Total number of suffix bytes before compression.
  - totalBlockStatsBytes
```
public long totalBlockStatsBytes
```
    Total number of bytes used to store term stats (not including what the PostingsReaderBase stores.
  - totalBlockOtherBytes
```
public long totalBlockOtherBytes
```
    Total bytes stored by the PostingsReaderBase, plus the other few vInts stored in the frame.
  - segment
```
public final String segment
```
    Segment name.
  - field
```
public final String field
```
    Field name.
- Method Detail
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object

Class Stats

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

indexNumBytes

totalTermCount

totalTermBytes

nonFloorBlockCount

floorBlockCount

floorSubBlockCount

mixedBlockCount

termsOnlyBlockCount

subBlocksOnlyBlockCount

totalBlockCount

blockCountByPrefixLen

totalBlockSuffixBytes

compressionAlgorithms

totalUncompressedBlockSuffixBytes

totalBlockStatsBytes

totalBlockOtherBytes

segment

field

Method Detail

toString