com.twitter.snowflake.support

类 MillisIdSequenceFactory

java.lang.Object

com.twitter.snowflake.support.ElasticIdSequenceFactory

com.twitter.snowflake.support.MillisIdSequenceFactory

所有已实现的接口:

IdSequenceFactory

public class MillisIdSequenceFactory
extends ElasticIdSequenceFactory

The unique id has 64bits (long), default allocated as blow:

sign: The highest bit is 0 delta millisecond: The next 28 bits, represents delta seconds since a customer epoch(2017-01-01 00:00:00.000). Supports about 69 years until to 2086-01-01 00:00:00 worker id: The next 10 bits, represents the worker's id, max id is about 1023 sequence: The next 12 bits, represents a sequence within the same millisecond, max for 4095/ms

+------+----------------------+----------------+-----------+
 | sign |  delta millisecond   | worker node id | sequence  |
 +------+----------------------+----------------+-----------+
   1bit          41bits              10bits         12bits
 

You can also specified the bits by setter method.

作者:

svili