Package me.insidezhou.southernquiet.util

Class SnowflakeIdGenerator

java.lang.Object

instep.util.LongIdGenerator

me.insidezhou.southernquiet.util.SnowflakeIdGenerator

All Implemented Interfaces:

IdGenerator

public class SnowflakeIdGenerator
extends instep.util.LongIdGenerator
implements IdGenerator

基于twitter snowflake算法、64bit、默认秒级精度的发号器

0 - timestamp - highPadding - worker - lowPadding - sequence

Nested Class Summary

Nested classes/interfaces inherited from class instep.util.LongIdGenerator

instep.util.LongIdGenerator.Companion

Field Summary

Fields

Modifier and Type	Field	Description
static long	EPOCH
static int	HighPaddingBits
static int	LowPaddingBits
static int	SequenceStartRange
static int	TickAccuracy
static int	TimestampBits
static int	WorkerIdBits

Fields inherited from class instep.util.LongIdGenerator

Companion

Constructor Summary

Constructors

Constructor	Description
SnowflakeIdGenerator(int workerId)
SnowflakeIdGenerator(int workerId, int timestampBits, int highPaddingBits, int workerIdBits, int lowPaddingBits)
SnowflakeIdGenerator(int workerId, int timestampBits, int highPaddingBits, int workerIdBits, int lowPaddingBits, long epoch, int sequenceStartRange, java.util.Random random, int tickAccuracy)
SnowflakeIdGenerator(int workerId, long epoch, int sequenceStartRange, int tickAccuracy)

Method Summary

Modifier and Type	Method	Description
int	getSequenceFromId(long id)
long	getTicksFromId(long id)
long	getTimestampFromId(long id)
int	getWorkerFromId(long id)

Methods inherited from class instep.util.LongIdGenerator

generate, getEpochInMilliSeconds, getEpochInSeconds, getEpochTick, getHighPaddingBits, getLastTick, getLowPaddingBits, getMaxSequenceValue, getMaxWorkerId, getRandom, getSequence, getSequenceBits, getSequenceStartRange, getTickAccuracy, getTimestampBits, getTimestampShift, getWorkerId, getWorkerIdBits, getWorkerIdShift

Methods inherited from class java.lang.Object

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

Methods inherited from interface me.insidezhou.southernquiet.util.IdGenerator

generate

Field Detail

EPOCH

public static final long EPOCH

See Also:

Constant Field Values

TimestampBits

public static final int TimestampBits

See Also:

Constant Field Values

HighPaddingBits

public static final int HighPaddingBits

See Also:

Constant Field Values

WorkerIdBits

public static final int WorkerIdBits

See Also:

Constant Field Values

LowPaddingBits

public static final int LowPaddingBits

See Also:

Constant Field Values

SequenceStartRange

public static final int SequenceStartRange

See Also:

Constant Field Values

TickAccuracy

public static final int TickAccuracy

See Also:

Constant Field Values

Constructor Detail

SnowflakeIdGenerator

public SnowflakeIdGenerator(int workerId,
                            int timestampBits,
                            int highPaddingBits,
                            int workerIdBits,
                            int lowPaddingBits,
                            long epoch,
                            int sequenceStartRange,
                            @Nullable
                            java.util.Random random,
                            int tickAccuracy)

SnowflakeIdGenerator

public SnowflakeIdGenerator(int workerId,
                            int timestampBits,
                            int highPaddingBits,
                            int workerIdBits,
                            int lowPaddingBits)

SnowflakeIdGenerator

public SnowflakeIdGenerator(int workerId,
                            long epoch,
                            int sequenceStartRange,
                            int tickAccuracy)

SnowflakeIdGenerator

public SnowflakeIdGenerator(int workerId)

Method Detail

getTicksFromId

public long getTicksFromId(long id)

Specified by:

getTicksFromId in interface IdGenerator

getTimestampFromId

public long getTimestampFromId(long id)

Specified by:

getTimestampFromId in interface IdGenerator

getWorkerFromId

public int getWorkerFromId(long id)

Specified by:

getWorkerFromId in interface IdGenerator

getSequenceFromId

public int getSequenceFromId(long id)

Specified by:

getSequenceFromId in interface IdGenerator