Package org.apache.lucene.index
Class IndexSplitter
- java.lang.Object
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- org.apache.lucene.index.IndexSplitter
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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!
NOTE: this tool is unaware of documents added atomically via
IndexWriter.addDocuments(java.util.Collection<org.apache.lucene.document.Document>)
orIndexWriter.updateDocuments(org.apache.lucene.index.Term, java.util.Collection<org.apache.lucene.document.Document>)
, which means it can easily break up such document groups.
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Field Summary
Fields Modifier and Type Field Description org.apache.lucene.index.SegmentInfos
infos
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Constructor Summary
Constructors Constructor Description IndexSplitter(File dir)
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description void
listSegments()
static void
main(String[] args)
void
remove(String[] segs)
void
split(File destDir, String[] segs)
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Constructor Detail
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IndexSplitter
public IndexSplitter(File dir) throws IOException
- Throws:
IOException
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Method Detail
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listSegments
public void listSegments() throws IOException
- Throws:
IOException
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remove
public void remove(String[] segs) throws IOException
- Throws:
IOException
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split
public void split(File destDir, String[] segs) throws IOException
- Throws:
IOException
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