Package org.apache.lucene.index
Class SegmentInfos.FindSegmentsFile
- java.lang.Object
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- org.apache.lucene.index.SegmentInfos.FindSegmentsFile
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- Enclosing class:
- SegmentInfos
public abstract static class SegmentInfos.FindSegmentsFile extends Object
Utility class for executing code that needs to do something with the current segments file. This is necessary with lock-less commits because from the time you locate the current segments file name, until you actually open it, read its contents, or check modified time, etc., it could have been deleted due to a writer commit finishing.
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Constructor Summary
Constructors Constructor Description FindSegmentsFile(Directory directory)
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Method Summary
All Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description protected abstract Object
doBody(String segmentFileName)
Subclass must implement this.Object
run()
Object
run(IndexCommit commit)
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Constructor Detail
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FindSegmentsFile
public FindSegmentsFile(Directory directory)
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Method Detail
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run
public Object run() throws CorruptIndexException, IOException
- Throws:
CorruptIndexException
IOException
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run
public Object run(IndexCommit commit) throws CorruptIndexException, IOException
- Throws:
CorruptIndexException
IOException
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doBody
protected abstract Object doBody(String segmentFileName) throws CorruptIndexException, IOException
Subclass must implement this. The assumption is an IOException will be thrown if something goes wrong during the processing that could have been caused by a writer committing.- Throws:
CorruptIndexException
IOException
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