org.hibernate.cache.spi
Interfaces 
CacheDataDescription
CollectionRegion
EntityRegion
GeneralDataRegion
OptimisticCacheSource
QueryCache
QueryCacheFactory
QueryResultsRegion
Region
RegionFactory
TimestampsRegion
TransactionalDataRegion
TransactionAwareCache
Classes 
CacheKey
FilterKey
QueryKey
UpdateTimestampsCache