org.apache.shardingsphere.distsql.handler.update

Interface RuleDefinitionDropUpdater<T extends org.apache.shardingsphere.sql.parser.sql.common.statement.SQLStatement,R extends RuleConfiguration>

Type Parameters:

T - type of SQL statement

R - type of rule configuration

All Superinterfaces:

RuleDefinitionUpdater<T,R>, org.apache.shardingsphere.infra.util.spi.type.typed.TypedSPI

public interface RuleDefinitionDropUpdater<T extends org.apache.shardingsphere.sql.parser.sql.common.statement.SQLStatement,R extends RuleConfiguration>
extends RuleDefinitionUpdater<T,R>

Drop rule definition updater.

Method Summary

Modifier and Type	Method and Description
default Collection<String>	getIdenticalData(Collection<String> currentRules, Collection<String> toBeDroppedRules) Get identical data.
default boolean	hasAnyOneToBeDropped(T sqlStatement, R currentRuleConfig) Whether there is dropped data.
default boolean	isExistRuleConfig(R currentRuleConfig) Whether there is configuration.
boolean	updateCurrentRuleConfiguration(T sqlStatement, R currentRuleConfig) Update current rule configuration.

Methods inherited from interface org.apache.shardingsphere.distsql.handler.update.RuleDefinitionUpdater

checkSQLStatement, getRuleConfigurationClass

Methods inherited from interface org.apache.shardingsphere.infra.util.spi.type.typed.TypedSPI

getType, getTypeAliases

Method Detail

updateCurrentRuleConfiguration

boolean updateCurrentRuleConfiguration(T sqlStatement,
                                       R currentRuleConfig)

Update current rule configuration.

Parameters:

sqlStatement - SQL statement

currentRuleConfig - current rule configuration to be updated

Returns:

current rule configuration is empty or not

isExistRuleConfig

default boolean isExistRuleConfig(R currentRuleConfig)

Whether there is configuration.

Parameters:

currentRuleConfig - current rule configuration

Returns:

configuration exists or does not exist

hasAnyOneToBeDropped

default boolean hasAnyOneToBeDropped(T sqlStatement,
                                     R currentRuleConfig)

Whether there is dropped data.

Parameters:

sqlStatement - SQL statement

currentRuleConfig - current rule configuration

Returns:

dropped data exists or does not exist

getIdenticalData

default Collection<String> getIdenticalData(Collection<String> currentRules,
                                            Collection<String> toBeDroppedRules)

Get identical data.

Parameters:

currentRules - collection

toBeDroppedRules - collection

Returns:

identical data