```
public class MergeState
extends Object
```
Holds common state used during segment merging.

Nested Classes
Modifier and Type	Class	Description
`static class`	`MergeState.CheckAbort`	Class for recording units of work when merging segments.
`static class`	`MergeState.DocMap`	Remaps docids around deletes during merge

Fields
Modifier and Type	Field	Description
`MergeState.CheckAbort`	`checkAbort`	Holds the CheckAbort instance, which is invoked periodically to see if the merge has been aborted.
`int[]`	`docBase`	New docID base per reader.
`MergeState.DocMap[]`	`docMaps`	Maps docIDs around deletions.
`FieldInfos`	`fieldInfos`	`FieldInfos` of the newly merged segment.
`InfoStream`	`infoStream`	InfoStream for debugging messages.
`int`	`matchedCount`	How many `matchingSegmentReaders` are set.
`SegmentReader[]`	`matchingSegmentReaders`	`SegmentReader`s that have identical field name/number mapping, so their stored fields and term vectors may be bulk merged.
`List<AtomicReader>`	`readers`	Readers being merged.
`SegmentInfo`	`segmentInfo`	`SegmentInfo` of the newly merged segment.

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

Class MergeState