com.alibaba.innodb.java.reader.util

接口 Slice

所有已知实现类:

ByteBufferSlice

public interface Slice

Slice of a byte array or buffer

作者:

xu.zx

方法概要

限定符和类型	方法和说明
int	get3BytesInt(int index) Get a 24-bit integer in the slice.
byte	getByte(int index) Get a byte in the slice.
byte[]	getBytes() Get byte array of the slice.
void	getBytes(int index, byte[] destination, int destinationIndex, int length) Transfer this array or buffer to a byte array.
void	getBytes(int index, ByteBuffer destination) Transfer this buffer's data to the specified destination starting at the specified absolute index until the destination's position reaches its limit.
byte[]	getBytes(int index, int length) Get sub-region byte array of the slice.
double	getDouble(int index) Get 8 bytes double in the slice.
float	getFloat(int index) Get 4 bytes float in the slice.
int	getInt(int index) Get a 32-bit integer in the slice.
long	getLong(int index) Get a 64-bit long integer in the slice.
byte[]	getRawArray() Get the raw array of the slice.
int	getRawOffset() Get the offset of the slice.
short	getShort(int index) Get a 16-bit short integer in the slice.
default SliceInput	input() Create an input stream for this slice.
int	length() Get length of this slice.

方法详细资料

length

int length()

Get length of this slice.

返回:

length of the slice

getRawArray

byte[] getRawArray()

Get the raw array of the slice.

返回:

raw byte array

getRawOffset

int getRawOffset()

Get the offset of the slice.

返回:

raw offset

getByte

byte getByte(int index)

Get a byte in the slice.

参数:

index - the specified absolute index in this slice

返回:

one byte

抛出:

IndexOutOfBoundsException - if the specified index is less than 0 or index + 1 is greater than capacity

getShort

short getShort(int index)

Get a 16-bit short integer in the slice.

参数:

index - the specified absolute index in this slice

返回:

16-bit short integer

抛出:

IndexOutOfBoundsException - if the specified index is less than 0 or index + 2 is greater than capacity

get3BytesInt

int get3BytesInt(int index)

Get a 24-bit integer in the slice.

参数:

index - the specified absolute index in this slice

返回:

24-bit integer

抛出:

IndexOutOfBoundsException - if the specified index is less than 0 or index + 3 is greater than capacity

getInt

int getInt(int index)

Get a 32-bit integer in the slice.

参数:

index - the specified absolute index in this slice.

返回:

32-bit integer

抛出:

IndexOutOfBoundsException - if the specified index is less than 0 or index + 4 is greater than capacity

getLong

long getLong(int index)

Get a 64-bit long integer in the slice.

参数:

index - the specified absolute index in this slice

返回:

64-bit long integer

抛出:

IndexOutOfBoundsException - if the specified index is less than 0 or index + 8 is greater than capacity

getFloat

float getFloat(int index)

Get 4 bytes float in the slice.

参数:

index - the specified absolute index in this slice

返回:

4 bytes float

抛出:

IndexOutOfBoundsException - if the specified index is less than 0 or index + 8 is greater than capacity

getDouble

double getDouble(int index)

Get 8 bytes double in the slice.

参数:

index - the specified absolute index in this slice

返回:

8 bytes double

抛出:

IndexOutOfBoundsException - if the specified index is less than 0 or index + 8 is greater than capacity

getBytes

void getBytes(int index,
              byte[] destination,
              int destinationIndex,
              int length)

Transfer this array or buffer to a byte array.

参数:

index - the specified absolute index in this slice

destination - destination byte array

destinationIndex - the first index of the destination

length - the number of bytes to transfer

抛出:

IndexOutOfBoundsException - if the specified index is less than 0, if the specified dstIndex is less than 0, if index + length is greater than this.capacity, or if dstIndex + length is greater than dst.length

getBytes

byte[] getBytes()

Get byte array of the slice. Leave the implementation to decide to do deep copy or just a view.

返回:

byte array

getBytes

byte[] getBytes(int index,
                int length)

Get sub-region byte array of the slice. Leave the implementation to decide to do deep copy or just a view.

参数:

index - the specified absolute index in this slice

length - length

返回:

byte array

getBytes

void getBytes(int index,
              ByteBuffer destination)

Transfer this buffer's data to the specified destination starting at the specified absolute index until the destination's position reaches its limit.

参数:

index - the specified absolute index in this slice

destination - destination byte buffer

抛出:

IndexOutOfBoundsException - if the specified index is less than 0 or if index + dst.remaining() is greater than this.capacity

input

default SliceInput input()

Create an input stream for this slice.

返回:

SliceInput