Package org.apache.lucene.misc.index

Class IndexSplitter

java.lang.Object

org.apache.lucene.misc.index.IndexSplitter

public class IndexSplitter
extends Object

Command-line tool that enables listing segments in an index, copying specific segments to another index, and deleting segments from an index.

This tool does file-level copying of segments files. This means it's unable to split apart a single segment into multiple segments. For example if your index is a single segment, this tool won't help. Also, it does basic file-level copying (using simple File{In,Out}putStream) so it will not work with non FSDirectory Directory impls.

WARNING: This API is experimental and might change in incompatible ways in the next release.

You can easily accidentally remove segments from your index so be careful!

Field Summary

Fields

Modifier and Type	Field	Description
final SegmentInfos	infos

Constructor Summary

Constructors

Constructor	Description
IndexSplitter(Path dir)

Method Summary

Modifier and Type	Method	Description
void	listSegments()
static void	main(String[] args)
void	remove(String[] segs)
void	split(Path destDir, String[] segs)

Methods inherited from class java.lang.Object

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

Field Details

infos

public final SegmentInfos infos

Constructor Details

IndexSplitter

public IndexSplitter(Path dir)
              throws IOException

Throws:

IOException

Method Details

main

public static void main(String[] args)
                 throws Exception

Throws:

Exception

listSegments

public void listSegments()
                  throws IOException

Throws:

IOException

remove

public void remove(String[] segs)
            throws IOException

Throws:

IOException

split

public void split(Path destDir,
 String[] segs)
           throws IOException

Throws:

IOException