Package io.rocketbase.commons.util

Class Snowflake

java.lang.Object

io.rocketbase.commons.util.Snowflake

public class Snowflake
extends Object

Author:

callicoder: https://github.com/callicoder/java-snowflake

Distributed Sequence Generator. Inspired by Twitter snowflake: https://github.com/twitter/snowflake/tree/snowflake-2010

This class should be used as a Singleton. Make sure that you create and reuse a Single instance of Snowflake per node in your distributed system cluster.

Field Summary

Fields

Modifier and Type	Field	Description
static final long	DEFAULT_CUSTOM_EPOCH
static final int	EPOCH_BITS
static final long	maxNodeId
static final long	maxSequence
static final int	NODE_ID_BITS
static final int	SEQUENCE_BITS
static final int	UNUSED_BITS

Constructor Summary

Constructors

Constructor	Description
Snowflake()
Snowflake(long nodeId)
Snowflake(long nodeId, long customEpoch)

Method Summary

Modifier and Type	Method	Description
long	nextId()
long[]	parse(long id)
String	toString()

Methods inherited from class java.lang.Object

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

Field Details

UNUSED_BITS

public static final int UNUSED_BITS

See Also:

• Constant Field Values

EPOCH_BITS

public static final int EPOCH_BITS

See Also:

• Constant Field Values

NODE_ID_BITS

public static final int NODE_ID_BITS

See Also:

• Constant Field Values

SEQUENCE_BITS

public static final int SEQUENCE_BITS

See Also:

• Constant Field Values

maxNodeId

public static final long maxNodeId

See Also:

• Constant Field Values

maxSequence

public static final long maxSequence

See Also:

• Constant Field Values

DEFAULT_CUSTOM_EPOCH

public static final long DEFAULT_CUSTOM_EPOCH

See Also:

• Constant Field Values

Constructor Details

Snowflake

public Snowflake(long nodeId,
 long customEpoch)

Snowflake

public Snowflake(long nodeId)

Snowflake

public Snowflake()

Method Details

nextId

public long nextId()

parse

public long[] parse(long id)

toString

public String toString()

Overrides:

toString in class Object