org.apache.hadoop.hbase.regionserver.wal
Interfaces 
HLog.Reader
HLog.Writer
WALActionsListener
Classes 
Compressor
HLog
HLog.Entry
HLog.Metric
HLogFileSystem
HLogKey
HLogPrettyPrinter
HLogSplitter
LRUDictionary
SequenceFileLogReader
SequenceFileLogWriter
WALCoprocessorHost
WALEdit
WALEditCodec
Exceptions 
FailedLogCloseException
OrphanHLogAfterSplitException