Determine what set of merge operations is necessary in order to optimize the index. {@link IndexWriter} calls this when its {@link IndexWriter#Optimize()} method is called. This call is always synchronized on the {@link IndexWriter} instance so only one thread at a time will call this method.

public abstract MergePolicy..::..MergeSpecification FindMergesForOptimize(
	SegmentInfos segmentInfos,
	int maxSegmentCount,
	Hashtable segmentsToOptimize
)

Public MustOverride Function FindMergesForOptimize ( _
	segmentInfos As SegmentInfos, _
	maxSegmentCount As Integer, _
	segmentsToOptimize As Hashtable _
) As MergePolicy..::..MergeSpecification

public:
virtual MergePolicy..::..MergeSpecification^ FindMergesForOptimize(
	SegmentInfos^ segmentInfos, 
	int maxSegmentCount, 
	Hashtable^ segmentsToOptimize
) abstract