SegmentInfos.FindSegmentsFile (Lucene 3.6.2 API)

java.lang.Object
- org.apache.lucene.index.SegmentInfos.FindSegmentsFile

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.

Constructor Summary

Constructors
Constructor Description

FindSegmentsFile(Directory directory)

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)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FindSegmentsFile

public FindSegmentsFile(Directory directory)

Method Detail

run

public Object run()
           throws CorruptIndexException,
                  IOException

Throws:: CorruptIndexException; IOException

run

public Object run(IndexCommit commit)
           throws CorruptIndexException,
                  IOException

Throws:: CorruptIndexException; IOException

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