Package org.apache.hadoop.hbase.io

Interface Summary

Interface	Description
ByteBuffAllocator.Recycler
ByteBufferWriter	This interface marks a class to support writing ByteBuffers into it.
CellOutputStream	Accepts a stream of Cells.
HeapSize	Implementations can be asked for an estimate of their size in bytes.
MetricsIOSource
MetricsIOWrapper
SizedCellScanner	A CellScanner that knows its size in memory in bytes.
WritableWithSize	An optional interface to 'size' writables.

Class Summary

Class	Description
ByteArrayOutputStream	Our own implementation of ByteArrayOutputStream where all methods are NOT synchronized and supports writing ByteBuffer directly to it.
ByteBuffAllocator	ByteBuffAllocator is used for allocating/freeing the ByteBuffers from/to NIO ByteBuffer pool, and it provide high-level interfaces for upstream.
ByteBufferInputStream	Not thread safe!
ByteBufferListOutputStream	An OutputStream which writes data into ByteBuffers.
ByteBufferOutputStream	Not thread safe!
ByteBufferWriterDataOutputStream	Our extension of DataOutputStream which implements ByteBufferWriter
ByteBufferWriterOutputStream	When deal with OutputStream which is not ByteBufferWriter type, wrap it with this class.
ByteBuffInputStream	Not thread safe!
FileLink	The FileLink is a sort of hardlink, that allows access to a file given a set of locations.
FileLink.FileLinkInputStream	FileLink InputStream that handles the switch between the original path and the alternative locations, when the file is moved.
FSDataInputStreamWrapper	Wrapper for input stream(s) that takes care of the interaction of FS and HBase checksums, as well as closing streams.
FSDataInputStreamWrapper.ReadStatistics
HalfStoreFileReader	A facade for a HFile.Reader that serves up either the top or bottom half of a HFile where 'bottom' is the first half of the file containing the keys that sort lowest and 'top' is the second half of the file with keys that sort greater than those of the bottom half.
HFileLink	HFileLink describes a link to an hfile.
ImmutableBytesWritable	A byte sequence that is usable as a key or value.
ImmutableBytesWritable.Comparator	A Comparator optimized for ImmutableBytesWritable.
MetricsIO
MetricsIOSourceImpl
MetricsIOWrapperImpl
Reference	A reference to the top or bottom half of a store file where 'bottom' is the first half of the file containing the keys that sort lowest and 'top' is the second half of the file with keys that sort greater than those of the bottom half.
TagCompressionContext	Context that holds the dictionary for Tag compression and doing the compress/uncompress.
TimeRange	Represents an interval of version timestamps.
WALLink	WALLink describes a link to a WAL.

Enum Summary

Enum	Description
Reference.Range	For split HStoreFiles, it specifies if the file covers the lower half or the upper half of the key range