pro.fessional.mirana.id

Class LightId

java.lang.Object

pro.fessional.mirana.id.LightId

public class LightId
extends Object

 64 bit = 1bit(0 fixed) + 8bit (CRC8) + 1bit(Layout) + 54bit(block+sequence)
 8bit reserved for Crc8Long encode, default 0
 1bit whole-seq(0); block-seq(1)
 whole-seq(0) = sequence(54bit=18014398509481983)
 block-seq(1) = block(9bit=512) + sequence((54-9=45)bit=35184372088831)
 for 512 block unstopped 50000 id/second, running
 (2^45 -1)/(365*24*3600*50000) = 22.3 years
 

Since:

2019-05-20

Author:

trydofor

See Also:

Crc8Long

Field Summary

Fields

Modifier and Type	Field and Description
static int	BIT_BLOCK
static int	BIT_LIGHT
static int	BIT_SEQ_BLOCK
static int	BIT_SEQ_WHOLE
static int	MAX_BLOCK
static long	MAX_SEQ_BLOCK
static long	MAX_SEQ_WHOLE
static int	MIN_BLOCK
static long	MIN_SEQ
static LightId	NONE
static long	TKN_LAYOUT
static LightId	ZERO

Constructor Summary

Constructors

Constructor and Description
LightId(int block, long sequence) Constructed by block and sequence.

Method Summary

Modifier and Type	Method and Description
int	component1()
long	component2()
boolean	equals(Object o)
int	getBlock() Get block, 0 means whole-seq layout, above 1 is block-seq layout
long	getSequence()
int	hashCode()
long	toLong()
@NotNull String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

NONE

public static final LightId NONE

ZERO

public static final LightId ZERO

BIT_LIGHT

public static final int BIT_LIGHT

See Also:

Constant Field Values

BIT_BLOCK

public static final int BIT_BLOCK

See Also:

Constant Field Values

MIN_BLOCK

public static final int MIN_BLOCK

See Also:

Constant Field Values

MAX_BLOCK

public static final int MAX_BLOCK

See Also:

Constant Field Values

BIT_SEQ_WHOLE

public static final int BIT_SEQ_WHOLE

See Also:

Constant Field Values

BIT_SEQ_BLOCK

public static final int BIT_SEQ_BLOCK

See Also:

Constant Field Values

MIN_SEQ

public static final long MIN_SEQ

See Also:

Constant Field Values

MAX_SEQ_WHOLE

public static final long MAX_SEQ_WHOLE

See Also:

Constant Field Values

MAX_SEQ_BLOCK

public static final long MAX_SEQ_BLOCK

See Also:

Constant Field Values

TKN_LAYOUT

public static final long TKN_LAYOUT

See Also:

Constant Field Values

Constructor Detail

LightId

public LightId(int block,
               long sequence)

Constructed by block and sequence. The default value of block is from 0 to 512, which can be modified by LightIdUtil.forceBlockBit. 0 means whole-seq layout, above 1 is block-seq layout.

Method Detail

getBlock

public int getBlock()

Get block, 0 means whole-seq layout, above 1 is block-seq layout

getSequence

public long getSequence()

component1

public final int component1()

component2

public final long component2()

toLong

public long toLong()

toString

@NotNull
public @NotNull String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object