org.apache.lucene.search.highlight
Interfaces 
Encoder
Formatter
Fragmenter
Scorer
Classes 
DefaultEncoder
GradientFormatter
Highlighter
NullFragmenter
OffsetLimitTokenFilter
PositionSpan
QueryScorer
QueryTermExtractor
QueryTermScorer
SimpleFragmenter
SimpleHTMLEncoder
SimpleHTMLFormatter
SimpleSpanFragmenter
SpanGradientFormatter
TextFragment
TokenGroup
TokenSources
TokenStreamFromTermPositionVector
WeightedSpanTerm
WeightedSpanTermExtractor
WeightedSpanTermExtractor.PositionCheckingMap
WeightedTerm
Exceptions 
InvalidTokenOffsetsException