Data Sharding :: ShardingSphere

Data Sharding

ShardingAlgorithm

Sharding Algorithm definition

Configuration Type	Auto Create Tables	Description	Fully-qualified class name
MOD	Y	Modulo sharding algorithm	`org.apache.shardingsphere.sharding.algorithm.sharding.mod.ModShardingAlgorithm`
HASH_MOD	Y	Hash modulo sharding algorithm	`org.apache.shardingsphere.sharding.algorithm.sharding.mod.HashModShardingAlgorithm`
BOUNDARY_RANGE	Y	Boundary based range sharding algorithm	`org.apache.shardingsphere.sharding.algorithm.sharding.range.BoundaryBasedRangeShardingAlgorithm`
VOLUME_RANGE	Y	Volume based range sharding algorithm	`org.apache.shardingsphere.sharding.algorithm.sharding.range.VolumeBasedRangeShardingAlgorithm`
AUTO_INTERVAL	Y	Mutable interval sharding algorithm	`org.apache.shardingsphere.sharding.algorithm.sharding.datetime.AutoIntervalShardingAlgorithm`
INTERVAL	N	Fixed interval sharding algorithm	`org.apache.shardingsphere.sharding.algorithm.sharding.datetime.IntervalShardingAlgorithm`
CLASS_BASED	N	Class based sharding algorithm	`org.apache.shardingsphere.sharding.algorithm.sharding.classbased.ClassBasedShardingAlgorithm`
INLINE	N	Inline sharding algorithm	`org.apache.shardingsphere.sharding.algorithm.sharding.inline.InlineShardingAlgorithm`
COMPLEX_INLINE	N	Complex inline sharding algorithm	`org.apache.shardingsphere.sharding.algorithm.sharding.complex.ComplexInlineShardingAlgorithm`
HINT_INLINE	N	Hint inline sharding algorithm	`org.apache.shardingsphere.sharding.algorithm.sharding.hint.HintInlineShardingAlgorithm`

Distributed Key Generating Algorithm definition

Configuration Type	Description	Fully-qualified class name
SNOWFLAKE	Snowflake key generate algorithm	`org.apache.shardingsphere.sharding.algorithm.keygen.SnowflakeKeyGenerateAlgorithm`
UUID	UUID key generate algorithm	`org.apache.shardingsphere.sharding.algorithm.keygen.UUIDKeyGenerateAlgorithm`

Sharding audit algorithm definition

Configuration Type	Description	Fully-qualified class name
DML_SHARDING_CONDITIONS	Prohibit DML auditing algorithm without sharding conditions	`org.apache.shardingsphere.sharding.algorithm.audit.DMLShardingConditionsShardingAuditAlgorithm`

Obtain the current date for routing definition

Configuration Type	Description	Fully-qualified class name
DatabaseTimestampService	Get the current time from the database for routing	`org.apache.shardingsphere.timeservice.type.database.DatabaseTimestampService`
SystemTimestampService	Get the current time from the application system for routing	`org.apache.shardingsphere.timeservice.type.system.SystemTimestampService`

org.apache.shardingsphere.infra.expr.core.InlineExpressionParser

Row Value Expressions definition

Configuration Type	Description	Fully-qualified class name
GROOVY	Row Value Expressions that uses the Groovy syntax	`org.apache.shardingsphere.infra.expr.groovy.GroovyInlineExpressionParser`
PURELIST	Row Value Expressions that uses a standard list	`org.apache.shardingsphere.infra.expr.purelist.PureListInlineExpressionParser`