Package org.apache.lucene.misc.index
Class IndexRearranger
- java.lang.Object
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- org.apache.lucene.misc.index.IndexRearranger
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public class IndexRearranger extends Object
Copy and rearrange index according to document selectors, from input dir to output dir. Length of documentSelectors determines how many segments there will beTODO: 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
Nested Classes Modifier and Type Class Description static interface
IndexRearranger.DocumentSelector
Select document within a CodecReader
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Field Summary
Fields Modifier and Type Field Description protected IndexWriterConfig
config
protected List<IndexRearranger.DocumentSelector>
documentSelectors
protected Directory
input
protected Directory
output
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Constructor Summary
Constructors Constructor Description IndexRearranger(Directory input, Directory output, IndexWriterConfig config, List<IndexRearranger.DocumentSelector> documentSelectors)
Constructor
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Field Detail
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input
protected final Directory input
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output
protected final Directory output
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config
protected final IndexWriterConfig config
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documentSelectors
protected final List<IndexRearranger.DocumentSelector> documentSelectors
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Constructor Detail
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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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