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Snowflake

java edition of Twitter Snowflake, a network service for generating unique ID numbers at high scale with some simple guarantees.

QuickStart

  • import maven dependency
<dependency>
  <groupId>xyz.downgoon</groupId>
  <artifactId>snowflake</artifactId>
  <version>1.0.0</version>
</dependency>
  • sample code
// datacenter: 2; workerId: 5
Snowflake snowflake = new Snowflake(2, 5);
long id1 = snowflake.nextId();
long id2 = snowflake.nextId();

snowflake.formatId(id1);

for more details, please read SnowflakeDemo2.java.

snowflake tutorial