Package org.apache.lucene.backward_codecs.lucene50

Class Lucene50LiveDocsFormat

java.lang.Object

org.apache.lucene.codecs.LiveDocsFormat

org.apache.lucene.backward_codecs.lucene50.Lucene50LiveDocsFormat

public final class Lucene50LiveDocsFormat
extends LiveDocsFormat

Lucene 5.0 live docs format

The .liv file is optional, and only exists when a segment contains deletions.

Although per-segment, this file is maintained exterior to compound segment files.

Deletions (.liv) --> IndexHeader,Generation,Bits

• SegmentHeader --> IndexHeader
• Bits --> <Int64> ^LongCount

Constructor Summary

Constructors

Constructor	Description
Lucene50LiveDocsFormat()	Sole constructor.

Method Summary

Modifier and Type	Method	Description
void	files(SegmentCommitInfo info, Collection<String> files)
Bits	readLiveDocs(Directory dir, SegmentCommitInfo info, IOContext context)
void	writeLiveDocs(Bits bits, Directory dir, SegmentCommitInfo info, int newDelCount, IOContext context)	Note: although this format is only used on older versions, we need to keep the write logic in addition to the read logic.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Lucene50LiveDocsFormat

public Lucene50LiveDocsFormat()

Sole constructor.

Method Details

readLiveDocs

public Bits readLiveDocs(Directory dir,
 SegmentCommitInfo info,
 IOContext context)
                  throws IOException

Specified by:

readLiveDocs in class LiveDocsFormat

Throws:

IOException

writeLiveDocs

public void writeLiveDocs(Bits bits,
 Directory dir,
 SegmentCommitInfo info,
 int newDelCount,
 IOContext context)
                   throws IOException

Note: although this format is only used on older versions, we need to keep the write logic in addition to the read logic. When we delete documents that live in an older segment, we write to the live docs for that segment.

Specified by:

writeLiveDocs in class LiveDocsFormat

Throws:

IOException

files

public void files(SegmentCommitInfo info,
 Collection<String> files)
           throws IOException

Specified by:

files in class LiveDocsFormat

Throws:

IOException