程序包 org.apache.hadoop.hbase

接口概要

接口	说明
Cell	The unit of storage in HBase consisting of the following fields: 1) row 2) column family 3) column qualifier 4) timestamp 5) type 6) MVCC version 7) value Uniqueness is determined by the combination of row, column family, column qualifier, timestamp, and type.
CellBuilder	Use CellBuilderFactory to get CellBuilder instance.
CellComparator	Comparator for comparing cells and has some specialized methods that allows comparing individual cell components like row, family, qualifier and timestamp
CellScannable	Implementer can return a CellScanner over its Cell content.
CellScanner	An interface for iterating through a sequence of cells.
ExtendedCell	Extension to Cell with server side required functions.
ExtendedCellBuilder	For internal purpose.
KeyValue.SamePrefixComparator<T>	Avoids redundant comparisons for better performance.
RawCell	An extended version of cell that gives more power to CPs
RawCellBuilder	Allows creating a cell with Tag An instance of this type can be acquired by using RegionCoprocessorEnvironment#getCellBuilder (for prod code) and RawCellBuilderFactory (for unit tests).
Stoppable	Implementers are Stoppable.
Tag	Tags are part of cells and helps to add metadata about them.

类概要

类	说明
ArrayBackedTag	This is a Tag implementation in which value is backed by an on heap byte array.
AsyncConsoleAppender	Logger class that buffers before trying to log to the specified console.
AuthUtil	已过时 since 2.2.0, to be marked as InterfaceAudience.Private in 4.0.0.
BaseConfigurable	HBase version of Hadoop's Configured class that doesn't initialize the configuration via BaseConfigurable.setConf(Configuration) in the constructor, but only sets the configuration through the BaseConfigurable.setConf(Configuration) method
BBKVComparator	A comparator for case where ByteBufferKeyValue is prevalent type (BBKV is base-type in hbase2).
ByteBufferExtendedCell	This class is a server side extension to the Cell interface.
ByteBufferKeyOnlyKeyValue	This is a key only Cell implementation which is identical to KeyValue.KeyOnlyKeyValue with respect to key serialization but have its data in the form of Byte buffer (onheap and offheap).
ByteBufferKeyValue	This Cell is an implementation of ByteBufferExtendedCell where the data resides in off heap/ on heap ByteBuffer
ByteBufferTag	This is a Tag implementation in which value is backed by ByteBuffer
CellBuilderFactory	Create a CellBuilder instance.
CellComparatorImpl	Compare two HBase cells.
CellComparatorImpl.MetaCellComparator	A CellComparatorImpl for hbase:meta catalog table KeyValues.
CellUtil	Utility methods helpful for slinging Cell instances.
ChoreService	ChoreService is a service that can be used to schedule instances of ScheduledChore to run periodically while sharing threads.
CompoundConfiguration	Do a shallow merge of multiple KV configuration pools.
ExtendedCellBuilderFactory
ExtendedCellBuilderImpl
HBaseConfiguration	Adds HBase configuration files to a Configuration
HBaseInterfaceAudience	This class defines constants for different classes of hbase limited private apis
HConstants	HConstants holds a bunch of HBase-related constants
IndividualBytesFieldCell
JitterScheduledThreadPoolExecutorImpl	ScheduledThreadPoolExecutor that will add some jitter to the RunnableScheduledFuture.getDelay.
KeyValue	An HBase Key/Value.
KeyValue.KeyOnlyKeyValue	A simple form of KeyValue that creates a keyvalue with only the key part of the byte[] Mainly used in places where we need to compare two cells.
KeyValue.KVComparator	已过时 : Use CellComparatorImpl.
KeyValue.MetaComparator	已过时 : CellComparatorImpl.META_COMPARATOR to be used.
KeyValueTestUtil
KeyValueUtil	static convenience methods for dealing with KeyValues and collections of KeyValues
NamespaceDescriptor	Namespace POJO class.
NamespaceDescriptor.Builder
NoTagsByteBufferKeyValue	An extension of the ByteBufferKeyValue where the tags length is always 0
NoTagsKeyValue	An extension of the KeyValue where the tags length is always 0
PrivateCellUtil	Utility methods helpful slinging Cell instances.
RawCellBuilderFactory	Factory for creating cells for CPs.
ScheduledChore	ScheduledChore is a task performed on a period in hbase.
ServerName	Name of a particular incarnation of an HBase Server.
SizeCachedKeyValue	This class is an extension to KeyValue where rowLen and keyLen are cached.
SizeCachedNoTagsKeyValue	This class is an extension to ContentSizeCachedKeyValue where there are no tags in Cell.
TableName	Immutable POJO class for representing a table name.
TagType
TagUtil
Version

枚举概要

枚举	说明
Cell.Type	The valid types for user to build the cell.
CellBuilderType	Used by CellBuilderFactory and ExtendedCellBuilderFactory.
HConstants.OperationStatusCode	Status codes used for return values of bulk operations.
KeyValue.Type	Key type.

异常错误概要

异常错误	说明
HBaseIOException	All hbase specific IOExceptions should be subclasses of HBaseIOException
ServiceNotRunningException

注释类型概要

注释类型	说明
MetaMutationAnnotation	The field or the parameter to which this annotation can be applied only when it holds mutations for hbase:meta table.