org.apache.hadoop.hbase.util

类 AbstractPositionedByteRange

java.lang.Object

org.apache.hadoop.hbase.util.AbstractByteRange

org.apache.hadoop.hbase.util.AbstractPositionedByteRange

所有已实现的接口:

Comparable<ByteRange>, ByteRange, PositionedByteRange

直接已知子类:

SimplePositionedByteRange, SimplePositionedMutableByteRange

@InterfaceAudience.Private
@InterfaceStability.Evolving
public abstract class AbstractPositionedByteRange
extends AbstractByteRange
implements PositionedByteRange

Extends the basic SimpleByteRange implementation with position support. position is considered transient, not fundamental to the definition of the range, and does not participate in AbstractByteRange.compareTo(ByteRange), AbstractByteRange.hashCode(), or Object.equals(Object). Position is retained by copy operations.

字段概要

字段

限定符和类型	字段和说明
protected int	limit
protected int	position The current index into the range.

从类继承的字段 org.apache.hadoop.hbase.util.AbstractByteRange

bytes, hash, length, offset, UNSET_HASH_VALUE

构造器概要

构造器

构造器和说明
AbstractPositionedByteRange()

方法概要

方法

限定符和类型	方法和说明
byte	get() Retrieve the next byte from this range.
PositionedByteRange	get(byte[] dst) Fill dst with bytes from the range, starting from position.
PositionedByteRange	get(byte[] dst, int offset, int length) Fill dst with bytes from the range, starting from the current position.
PositionedByteRange	get(int index, byte[] dst) Fill dst with bytes from the range, starting from index.
PositionedByteRange	get(int index, byte[] dst, int offset, int length) Fill dst with bytes from the range, starting from index.
int	getInt() Retrieve the next int value from this range.
int	getLimit() Return the current limit
long	getLong() Retrieve the next long value from this range.
int	getPosition() The current position marker.
int	getRemaining() The number of bytes remaining between position and the end of the range.
short	getShort() Retrieve the next short value from this range.
long	getVLong() Retrieve the next long value, which is stored as VLong, from this range
byte	peek() Retrieve the next byte from this range without incrementing position.
PositionedByteRange	set(byte[] bytes) Reuse this ByteRange over a new byte[].
PositionedByteRange	set(byte[] bytes, int offset, int length) Reuse this ByteRange over a new byte[].
PositionedByteRange	set(int capacity) Reuse this ByteRange over a new byte[].
PositionedByteRange	setLength(int length) Update the length of this range.
PositionedByteRange	setLimit(int limit) Limits the byte range upto a specified value.
PositionedByteRange	setOffset(int offset) Update the beginning of this range.
PositionedByteRange	setPosition(int position) Update the position index.

从类继承的方法 org.apache.hadoop.hbase.util.AbstractByteRange

clearHashCache, compareTo, deepCopySubRangeTo, deepCopyTo, deepCopyToNewArray, get, getBytes, getInt, getLength, getLong, getOffset, getShort, getVLong, getVLongSize, hashCode, isEmpty, isEmpty, isHashCached, toString

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.hadoop.hbase.util.PositionedByteRange

deepCopy, put, put, put, put, put, put, putInt, putInt, putLong, putLong, putShort, putShort, putVLong, shallowCopy, shallowCopySubRange, unset

从接口继承的方法 org.apache.hadoop.hbase.util.ByteRange

deepCopySubRangeTo, deepCopyTo, deepCopyToNewArray, get, getBytes, getInt, getLength, getLong, getOffset, getShort, getVLong, isEmpty, putVLong

从接口继承的方法 java.lang.Comparable

compareTo

字段详细资料

position

protected int position

The current index into the range. Like ByteBuffer position, it points to the next value that will be read/written in the array. It provides the appearance of being 0-indexed, even though its value is calculated according to offset.

Position is considered transient and does not participate in Object.equals(Object) or AbstractByteRange.hashCode() comparisons.

limit

protected int limit

构造器详细资料

AbstractPositionedByteRange

public AbstractPositionedByteRange()

方法详细资料

set

public PositionedByteRange set(int capacity)

从接口复制的说明: ByteRange

Reuse this ByteRange over a new byte[]. offset is set to 0 and length is set to capacity.

指定者:

set 在接口中 ByteRange

指定者:

set 在接口中 PositionedByteRange

覆盖:

set 在类中 AbstractByteRange

参数:

capacity - the size of a new byte[].

返回:

this

set

public PositionedByteRange set(byte[] bytes)

从接口复制的说明: ByteRange

Reuse this ByteRange over a new byte[]. offset is set to 0 and length is set to bytes.length. A null bytes IS supported, in which case this method will behave equivalently to ByteRange.unset().

指定者:

set 在接口中 ByteRange

指定者:

set 在接口中 PositionedByteRange

覆盖:

set 在类中 AbstractByteRange

参数:

bytes - the array to wrap.

返回:

this

set

public PositionedByteRange set(byte[] bytes,
                      int offset,
                      int length)

从接口复制的说明: ByteRange

Reuse this ByteRange over a new byte[]. A null bytes IS supported, in which case this method will behave equivalently to ByteRange.unset(), regardless of the values of offset and length.

指定者:

set 在接口中 ByteRange

指定者:

set 在接口中 PositionedByteRange

覆盖:

set 在类中 AbstractByteRange

参数:

bytes - The array to wrap.

offset - The offset into bytes considered the beginning of this range.

length - The length of this range.

返回:

this.

setOffset

public PositionedByteRange setOffset(int offset)

Update the beginning of this range. offset + length may not be greater than bytes.length. Resets position to 0.

指定者:

setOffset 在接口中 ByteRange

指定者:

setOffset 在接口中 PositionedByteRange

覆盖:

setOffset 在类中 AbstractByteRange

参数:

offset - the new start of this range.

返回:

this.

setLength

public PositionedByteRange setLength(int length)

Update the length of this range. offset + length should not be greater than bytes.length. If position is greater than the new length, sets position to length.

指定者:

setLength 在接口中 ByteRange

指定者:

setLength 在接口中 PositionedByteRange

覆盖:

setLength 在类中 AbstractByteRange

参数:

length - The new length of this range.

返回:

this.

getPosition

public int getPosition()

从接口复制的说明: PositionedByteRange

The current position marker. This valuae is 0-indexed, relative to the beginning of the range.

指定者:

getPosition 在接口中 PositionedByteRange

setPosition

public PositionedByteRange setPosition(int position)

从接口复制的说明: PositionedByteRange

Update the position index. May not be greater than length.

指定者:

setPosition 在接口中 PositionedByteRange

参数:

position - the new position in this range.

返回:

this.

getRemaining

public int getRemaining()

从接口复制的说明: PositionedByteRange

The number of bytes remaining between position and the end of the range.

指定者:

getRemaining 在接口中 PositionedByteRange

peek

public byte peek()

从接口复制的说明: PositionedByteRange

Retrieve the next byte from this range without incrementing position.

指定者:

peek 在接口中 PositionedByteRange

get

public byte get()

从接口复制的说明: PositionedByteRange

Retrieve the next byte from this range.

指定者:

get 在接口中 PositionedByteRange

get

public PositionedByteRange get(byte[] dst)

从接口复制的说明: PositionedByteRange

Fill dst with bytes from the range, starting from position. This range's position is incremented by the length of dst, the number of bytes copied.

指定者:

get 在接口中 PositionedByteRange

参数:

dst - the destination of the copy.

返回:

this.

get

public PositionedByteRange get(byte[] dst,
                      int offset,
                      int length)

从接口复制的说明: PositionedByteRange

Fill dst with bytes from the range, starting from the current position. length bytes are copied into dst, starting at offset. This range's position is incremented by the number of bytes copied.

指定者:

get 在接口中 PositionedByteRange

参数:

dst - the destination of the copy.

offset - the offset into dst to start the copy.

length - the number of bytes to copy into dst.

返回:

this.

get

public PositionedByteRange get(int index,
                      byte[] dst)

从接口复制的说明: ByteRange

Fill dst with bytes from the range, starting from index.

指定者:

get 在接口中 ByteRange

指定者:

get 在接口中 PositionedByteRange

覆盖:

get 在类中 AbstractByteRange

参数:

index - zero-based index into this range.

dst - the destination of the copy.

返回:

this.

get

public PositionedByteRange get(int index,
                      byte[] dst,
                      int offset,
                      int length)

从接口复制的说明: ByteRange

Fill dst with bytes from the range, starting from index. length bytes are copied into dst, starting at offset.

指定者:

get 在接口中 ByteRange

指定者:

get 在接口中 PositionedByteRange

覆盖:

get 在类中 AbstractByteRange

参数:

index - zero-based index into this range.

dst - the destination of the copy.

offset - the offset into dst to start the copy.

length - the number of bytes to copy into dst.

返回:

this.

getShort

public short getShort()

从接口复制的说明: PositionedByteRange

Retrieve the next short value from this range.

指定者:

getShort 在接口中 PositionedByteRange

getInt

public int getInt()

从接口复制的说明: PositionedByteRange

Retrieve the next int value from this range.

指定者:

getInt 在接口中 PositionedByteRange

getLong

public long getLong()

从接口复制的说明: PositionedByteRange

Retrieve the next long value from this range.

指定者:

getLong 在接口中 PositionedByteRange

getVLong

public long getVLong()

从接口复制的说明: PositionedByteRange

Retrieve the next long value, which is stored as VLong, from this range

指定者:

getVLong 在接口中 PositionedByteRange

返回:

the long value which is stored as VLong

setLimit

public PositionedByteRange setLimit(int limit)

从接口复制的说明: PositionedByteRange

Limits the byte range upto a specified value. Limit cannot be greater than capacity

指定者:

setLimit 在接口中 PositionedByteRange

返回:

PositionedByteRange

getLimit

public int getLimit()

从接口复制的说明: PositionedByteRange

Return the current limit

指定者:

getLimit 在接口中 PositionedByteRange

返回:

limit