org.apache.hadoop.hbase.types

类 OrderedInt16

java.lang.Object

org.apache.hadoop.hbase.types.OrderedBytesBase<Short>

org.apache.hadoop.hbase.types.OrderedInt16

所有已实现的接口:

DataType<Short>

@InterfaceAudience.Public
@InterfaceStability.Evolving
public class OrderedInt16
extends OrderedBytesBase<Short>

A short of 16-bits using a fixed-length encoding. Built on OrderedBytes.encodeInt16(PositionedByteRange, short, Order).

字段概要

字段

限定符和类型	字段和说明
static OrderedInt16	ASCENDING
static OrderedInt16	DESCENDING

从类继承的字段 org.apache.hadoop.hbase.types.OrderedBytesBase

order

构造器概要

构造器

限定符	构造器和说明
protected	OrderedInt16(Order order)

方法概要

方法

限定符和类型	方法和说明
Short	decode(PositionedByteRange src) Read an instance of T from the buffer src.
short	decodeShort(PositionedByteRange src) Read a short value from the buffer src.
int	encode(PositionedByteRange dst, Short val) Write instance val into buffer dst.
Class<Short>	encodedClass() Inform consumers over what type this DataType operates.
int	encodedLength(Short val) Inform consumers how long the encoded byte[] will be.
int	encodeShort(PositionedByteRange dst, short val) Write instance val into buffer dst.
boolean	isNullable() Indicates whether this instance supports encoding null values.

从类继承的方法 org.apache.hadoop.hbase.types.OrderedBytesBase

getOrder, isOrderPreserving, isSkippable, skip

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料

ASCENDING

public static final OrderedInt16 ASCENDING

DESCENDING

public static final OrderedInt16 DESCENDING

构造器详细资料

OrderedInt16

protected OrderedInt16(Order order)

方法详细资料

isNullable

public boolean isNullable()

从接口复制的说明: DataType

Indicates whether this instance supports encoding null values. This depends on the implementation details of the encoding format. All DataTypes that support null should treat null as comparing less than any non-null value for default sort ordering purposes.

指定者:

isNullable 在接口中 DataType<Short>

覆盖:

isNullable 在类中 OrderedBytesBase<Short>

返回:

true when null is supported, false otherwise.

encodedLength

public int encodedLength(Short val)

从接口复制的说明: DataType

Inform consumers how long the encoded byte[] will be.

参数:

val - The value to check.

返回:

the number of bytes required to encode val.a

encodedClass

public Class<Short> encodedClass()

从接口复制的说明: DataType

Inform consumers over what type this DataType operates. Useful when working with bare DataType instances.

decode

public Short decode(PositionedByteRange src)

从接口复制的说明: DataType

Read an instance of T from the buffer src.

参数:

src - the buffer containing the encoded value.

encode

public int encode(PositionedByteRange dst,
         Short val)

从接口复制的说明: DataType

Write instance val into buffer dst.

参数:

dst - the buffer containing the encoded value.

val - the value to encode onto dst.

返回:

number of bytes written.

decodeShort

public short decodeShort(PositionedByteRange src)

Read a short value from the buffer src.

encodeShort

public int encodeShort(PositionedByteRange dst,
              short val)

Write instance val into buffer dst.