Lucene46SegmentInfoFormat (Jackrabbit Oak 1.71-SNAPSHOT API)

java.lang.Object
- org.apache.lucene.codecs.SegmentInfoFormat
- - org.apache.lucene.codecs.lucene46.Lucene46SegmentInfoFormat

```
public class Lucene46SegmentInfoFormat
extends SegmentInfoFormat
```
Lucene 4.6 Segment info format.
Files:
- .si: Header, SegVersion, SegSize, IsCompoundFile, Diagnostics, Files
Data types:
- Header --> CodecHeader
- SegSize --> Int32
- SegVersion --> String
- Files --> Set<String>
- Diagnostics --> Map<String,String>
- IsCompoundFile --> Int8
Field Descriptions:
- SegVersion is the code version that created the segment.
- SegSize is the number of documents contained in the segment index.
- IsCompoundFile records whether the segment is written as a compound file or not. If this is -1, the segment is not a compound file. If it is 1, the segment is a compound file.
- Checksum contains the CRC32 checksum of all bytes in the segments_N file up until the checksum. This is used to verify integrity of the file on opening the index.
- The Diagnostics Map is privately written by IndexWriter, as a debugging aid, for each segment it creates. It includes metadata like the current Lucene version, OS, Java version, why the segment was created (merge, flush, addIndexes), etc.
- Files is a list of files referred to by this segment.
See Also:

SegmentInfos

Field Summary

Fields
Modifier and Type Field Description

static String SI_EXTENSION
File extension used to store SegmentInfo.

Constructor Summary

Constructors
Constructor Description

Lucene46SegmentInfoFormat()
Sole constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`SegmentInfoReader`	`getSegmentInfoReader()`	Returns the `SegmentInfoReader` for reading `SegmentInfo` instances.
`SegmentInfoWriter`	`getSegmentInfoWriter()`	Returns the `SegmentInfoWriter` for writing `SegmentInfo` instances.

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

- Field Detail
  - SI_EXTENSION
```
public static final String SI_EXTENSION
```
    File extension used to store SegmentInfo.
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - Lucene46SegmentInfoFormat
```
public Lucene46SegmentInfoFormat()
```
    Sole constructor.
- Method Detail
  - getSegmentInfoReader
```
public SegmentInfoReader getSegmentInfoReader()
```
    Description copied from class: SegmentInfoFormat
    
    Returns the SegmentInfoReader for reading SegmentInfo instances.
    
    Specified by:
    
    getSegmentInfoReader in class SegmentInfoFormat
  - getSegmentInfoWriter
```
public SegmentInfoWriter getSegmentInfoWriter()
```
    Description copied from class: SegmentInfoFormat
    
    Returns the SegmentInfoWriter for writing SegmentInfo instances.
    
    Specified by:
    
    getSegmentInfoWriter in class SegmentInfoFormat