org.apache.shardingsphere.elasticjob.infra.handler.sharding.impl

Class OdevitySortByNameJobShardingStrategy

java.lang.Object

org.apache.shardingsphere.elasticjob.infra.handler.sharding.impl.OdevitySortByNameJobShardingStrategy

All Implemented Interfaces:

JobShardingStrategy, TypedSPI

public final class OdevitySortByNameJobShardingStrategy
extends Object
implements JobShardingStrategy

Sharding strategy which for hash with job name to determine IP asc or desc.

IP address asc if job name' hashcode is odd; IP address desc if job name' hashcode is even. Used to average assign to job server. For example: 1. If there are 3 job servers with 2 sharding item, and the hash value of job name is odd, then each server is divided into: 1 = [0], 2 = [1], 3 = []; 2. If there are 3 job servers with 2 sharding item, and the hash value of job name is even, then each server is divided into: 3 = [0], 2 = [1], 1 = [].

Constructor Summary

Constructors

Constructor and Description
OdevitySortByNameJobShardingStrategy()

Method Summary

Modifier and Type	Method and Description
String	getType() Get type.
Map<JobInstance,List<Integer>>	sharding(List<JobInstance> jobInstances, String jobName, int shardingTotalCount) Sharding job.

Methods inherited from class java.lang.Object

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

Constructor Detail

OdevitySortByNameJobShardingStrategy

public OdevitySortByNameJobShardingStrategy()

Method Detail

sharding

public Map<JobInstance,List<Integer>> sharding(List<JobInstance> jobInstances,
                                               String jobName,
                                               int shardingTotalCount)

Description copied from interface: JobShardingStrategy

Sharding job.

Specified by:

sharding in interface JobShardingStrategy

Parameters:

jobInstances - all job instances which participate in sharding

jobName - job name

shardingTotalCount - sharding total count

Returns:

sharding result

getType

public String getType()

Description copied from interface: TypedSPI

Get type.

Specified by:

getType in interface TypedSPI

Returns:

type