Package org.apache.lucene.misc.index
Class IndexRearranger
java.lang.Object
org.apache.lucene.misc.index.IndexRearranger
Copy and rearrange index according to document selectors, from input dir to output dir. Length of
documentSelectors determines how many segments there will be
TODO: another possible (faster) approach to do this is to manipulate FlushPolicy and MergePolicy at indexing time to create small desired segments first and merge them accordingly for details please see: https://markmail.org/message/lbtdntclpnocmfuf
- WARNING: This API is experimental and might change in incompatible ways in the next release.
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Nested Class Summary
Modifier and TypeClassDescriptionstatic interface
Select document within a CodecReader -
Field Summary
Modifier and TypeFieldDescriptionprotected final IndexWriterConfig
protected final List
<IndexRearranger.DocumentSelector> protected final Directory
protected final Directory
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Constructor Summary
ConstructorDescriptionIndexRearranger
(Directory input, Directory output, IndexWriterConfig config, List<IndexRearranger.DocumentSelector> documentSelectors) Constructor -
Method Summary
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Field Details
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input
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output
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config
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documentSelectors
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Constructor Details
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IndexRearranger
public IndexRearranger(Directory input, Directory output, IndexWriterConfig config, List<IndexRearranger.DocumentSelector> documentSelectors) Constructor- Parameters:
input
- input diroutput
- output dirconfig
- index writer configdocumentSelectors
- specify what document is desired in the rearranged index segments, each selector correspond to one segment
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Method Details
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execute
- Throws:
Exception
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