## Uses of Class
org.apache.lucene.index.SegmentInfos

Packages that use SegmentInfos
org.apache.lucene.index: Code to maintain and access indices.

### Uses of SegmentInfos in org.apache.lucene.index

Methods in org.apache.lucene.index that return SegmentInfos
`SegmentInfos` SegmentInfos.`clone()` Returns a copy of this instance, also copying each SegmentInfo.
`SegmentInfos` StandardDirectoryReader.`getSegmentInfos()` Return the `SegmentInfos` for this reader.
`static SegmentInfos` SegmentInfos.`readCommit(Directory directory, ChecksumIndexInput input, long generation)` Read the commit from the provided `ChecksumIndexInput`.
`static SegmentInfos` SegmentInfos.`readCommit(Directory directory, String segmentFileName)` Read a particular segmentFileName.
`static SegmentInfos` SegmentInfos.`readLatestCommit(Directory directory)` Find the latest commit (`segments_N file`) and load all `SegmentCommitInfo`s.

Methods in org.apache.lucene.index with parameters of type SegmentInfos
`void` IndexWriter.`decRefDeleter(SegmentInfos segmentInfos)` Record that the files referenced by this `SegmentInfos` are no longer in use.
`MergePolicy.MergeSpecification` FilterMergePolicy.`findForcedDeletesMerges(SegmentInfos segmentInfos, MergePolicy.MergeContext mergeContext)`
`MergePolicy.MergeSpecification` TieredMergePolicy.`findForcedDeletesMerges(SegmentInfos infos, MergePolicy.MergeContext mergeContext)`
`MergePolicy.MergeSpecification` NoMergePolicy.`findForcedDeletesMerges(SegmentInfos segmentInfos, MergePolicy.MergeContext mergeContext)`
`MergePolicy.MergeSpecification` LogMergePolicy.`findForcedDeletesMerges(SegmentInfos segmentInfos, MergePolicy.MergeContext mergeContext)` Finds merges necessary to force-merge all deletes from the index.
`abstract MergePolicy.MergeSpecification` MergePolicy.`findForcedDeletesMerges(SegmentInfos segmentInfos, MergePolicy.MergeContext mergeContext)` Determine what set of merge operations is necessary in order to expunge all deletes from the index.
`MergePolicy.MergeSpecification` OneMergeWrappingMergePolicy.`findForcedDeletesMerges(SegmentInfos segmentInfos, MergePolicy.MergeContext mergeContext)`
`MergePolicy.MergeSpecification` FilterMergePolicy.`findForcedMerges(SegmentInfos segmentInfos, int maxSegmentCount, Map<SegmentCommitInfo,Boolean> segmentsToMerge, MergePolicy.MergeContext mergeContext)`
`MergePolicy.MergeSpecification` UpgradeIndexMergePolicy.`findForcedMerges(SegmentInfos segmentInfos, int maxSegmentCount, Map<SegmentCommitInfo,Boolean> segmentsToMerge, MergePolicy.MergeContext mergeContext)`
`MergePolicy.MergeSpecification` TieredMergePolicy.`findForcedMerges(SegmentInfos infos, int maxSegmentCount, Map<SegmentCommitInfo,Boolean> segmentsToMerge, MergePolicy.MergeContext mergeContext)`
`MergePolicy.MergeSpecification` NoMergePolicy.`findForcedMerges(SegmentInfos segmentInfos, int maxSegmentCount, Map<SegmentCommitInfo,Boolean> segmentsToMerge, MergePolicy.MergeContext mergeContext)`
`MergePolicy.MergeSpecification` LogMergePolicy.`findForcedMerges(SegmentInfos infos, int maxNumSegments, Map<SegmentCommitInfo,Boolean> segmentsToMerge, MergePolicy.MergeContext mergeContext)` Returns the merges necessary to merge the index down to a specified number of segments.
`abstract MergePolicy.MergeSpecification` MergePolicy.`findForcedMerges(SegmentInfos segmentInfos, int maxSegmentCount, Map<SegmentCommitInfo,Boolean> segmentsToMerge, MergePolicy.MergeContext mergeContext)` Determine what set of merge operations is necessary in order to merge to `<=` the specified segment count.
`MergePolicy.MergeSpecification` OneMergeWrappingMergePolicy.`findForcedMerges(SegmentInfos segmentInfos, int maxSegmentCount, Map<SegmentCommitInfo,Boolean> segmentsToMerge, MergePolicy.MergeContext mergeContext)`
`MergePolicy.MergeSpecification` FilterMergePolicy.`findMerges(MergeTrigger mergeTrigger, SegmentInfos segmentInfos, MergePolicy.MergeContext mergeContext)`
`MergePolicy.MergeSpecification` UpgradeIndexMergePolicy.`findMerges(MergeTrigger mergeTrigger, SegmentInfos segmentInfos, MergePolicy.MergeContext mergeContext)`
`MergePolicy.MergeSpecification` TieredMergePolicy.`findMerges(MergeTrigger mergeTrigger, SegmentInfos infos, MergePolicy.MergeContext mergeContext)`
`MergePolicy.MergeSpecification` NoMergePolicy.`findMerges(MergeTrigger mergeTrigger, SegmentInfos segmentInfos, MergePolicy.MergeContext mergeContext)`
`MergePolicy.MergeSpecification` LogMergePolicy.`findMerges(MergeTrigger mergeTrigger, SegmentInfos infos, MergePolicy.MergeContext mergeContext)` Checks if any merges are now necessary and returns a `MergePolicy.MergeSpecification` if so.
`abstract MergePolicy.MergeSpecification` MergePolicy.`findMerges(MergeTrigger mergeTrigger, SegmentInfos segmentInfos, MergePolicy.MergeContext mergeContext)` Determine what set of merge operations are now necessary on the index.
`MergePolicy.MergeSpecification` OneMergeWrappingMergePolicy.`findMerges(MergeTrigger mergeTrigger, SegmentInfos segmentInfos, MergePolicy.MergeContext mergeContext)`
`void` IndexWriter.`incRefDeleter(SegmentInfos segmentInfos)` Record that the files referenced by this `SegmentInfos` are still in use.
`protected boolean` LogMergePolicy.`isMerged(SegmentInfos infos, int maxNumSegments, Map<SegmentCommitInfo,Boolean> segmentsToMerge, MergePolicy.MergeContext mergeContext)` Returns true if the number of segments eligible for merging is less than or equal to the specified `maxNumSegments`.
`protected boolean` MergePolicy.`isMerged(SegmentInfos infos, SegmentCommitInfo info, MergePolicy.MergeContext mergeContext)` Returns true if this single info is already fully merged (has no pending deletes, is in the same dir as the writer, and matches the current compound file setting
`static DirectoryReader` StandardDirectoryReader.`open(Directory directory, SegmentInfos infos, List<? extends LeafReader> oldReaders, Map<String,String> readerAttributes)` This constructor is only used for `StandardDirectoryReader.doOpenIfChanged(SegmentInfos)`, as well as NRT replication.
`void` SegmentInfos.`updateGeneration(SegmentInfos other)` Carry over generation numbers from another SegmentInfos
`boolean` FilterMergePolicy.`useCompoundFile(SegmentInfos infos, SegmentCommitInfo mergedInfo, MergePolicy.MergeContext mergeContext)`
`boolean` NoMergePolicy.`useCompoundFile(SegmentInfos segments, SegmentCommitInfo newSegment, MergePolicy.MergeContext mergeContext)`
`boolean` MergePolicy.`useCompoundFile(SegmentInfos infos, SegmentCommitInfo mergedInfo, MergePolicy.MergeContext mergeContext)` Returns true if a new segment (regardless of its origin) should use the compound file format.