Apache Lucene.Net 2.4.0 Class Library API

MergePolicy.FindMergesForOptimize Method 

public abstract MergeSpecification FindMergesForOptimize(
   SegmentInfos segmentInfos,
   IndexWriter writer,
   int maxSegmentCount,
   2, Culture=neutral, PublicKeyToken=null]] segmentsToOptimize
);

See Also

MergePolicy Class | Lucene.Net.Index Namespace