org.apache.lucene.search.spell
Interfaces 
Dictionary
SortedIterator
StringDistance
TermFreqIterator
Classes 
HighFrequencyDictionary
JaroWinklerDistance
LevensteinDistance
LuceneDictionary
NGramDistance
PlainTextDictionary
SpellChecker
SuggestWord
SuggestWordFrequencyComparator
SuggestWordQueue
SuggestWordScoreComparator
TermFreqIterator.TermFreqIteratorWrapper