com.alexkasko.unsafe.offheapstruct

Interface OffHeapStructAccessor

All Known Implementing Classes:

OffHeapStructComparator.OffHeapStructByteArrayAccessor, OffHeapStructComparator.OffHeapStructIndexAccessor, OffHeapStructSorterByReference.OffHeapStructIndexAccessor

public interface OffHeapStructAccessor

Interface for accessing fields of a single struct

Author:

alexkasko Date: 9/12/13

Method Summary

Methods

Modifier and Type	Method and Description
void	get(byte[] buffer) Copies struct into specified buffer
void	get(int srcPos, byte[] dest, int destPos, int length) Copies part of struct into specified buffer
byte	getByte(int offset) Gets byte from struct with specified offset
int	getInt(int offset) Gets four bytes as int from struct with specified offset
long	getLong(int offset) Gets long from struct with specified offset
short	getShort(int offset) Gets two bytes as short from struct with specified offset
short	getUnsignedByte(int offset) Gets one byte (stored as one signed byte) from struct on specified index with specified offset, converts it to unsigned and returns it as short
long	getUnsignedInt(int offset) Gets unsigned int (stored as 4 bytes) and returns it as long from struct with specified offset
int	getUnsignedShort(int offset) Gets unsigned short (stored as two bytes) from struct on specified index with specified offset and returns it as int
int	structLength() Returns length of the single struct in bytes

Method Detail

structLength

int structLength()

Returns length of the single struct in bytes

Returns:

length of the single struct in bytes

get

void get(byte[] buffer)

Copies struct into specified buffer

Parameters:

buffer - buffer to copy struct into

get

void get(int srcPos,
       byte[] dest,
       int destPos,
       int length)

Copies part of struct into specified buffer

Parameters:

srcPos -

dest -

destPos -

length -

getByte

byte getByte(int offset)

Gets byte from struct with specified offset

Parameters:

offset - byte array index

Returns:

byte

getUnsignedByte

short getUnsignedByte(int offset)

Gets one byte (stored as one signed byte) from struct on specified index with specified offset, converts it to unsigned and returns it as short

Parameters:

offset - byte array index

Returns:

unsigned byte as short

getShort

short getShort(int offset)

Gets two bytes as short from struct with specified offset

Parameters:

offset - byte array offset

Returns:

short value

getUnsignedShort

int getUnsignedShort(int offset)

Gets unsigned short (stored as two bytes) from struct on specified index with specified offset and returns it as int

Parameters:

offset - byte array offset

Returns:

unsigned short as int

getInt

int getInt(int offset)

Gets four bytes as int from struct with specified offset

Parameters:

offset - byte array offset

Returns:

int value

getUnsignedInt

long getUnsignedInt(int offset)

Gets unsigned int (stored as 4 bytes) and returns it as long from struct with specified offset

Parameters:

offset - byte array offset

Returns:

unsigned int as long

getLong

long getLong(int offset)

Gets long from struct with specified offset

Parameters:

offset - byte array offset

Returns:

long value