org.apache.shardingsphere.infra.distsql.preprocess

Interface RuleDefinitionAlterPreprocessor<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:

TypedSPI

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

Rule definition alter preprocessor.

Method Summary

Modifier and Type	Method and Description
R	preprocess(R currentRuleConfig, R toBeAlteredRuleConfig) Preprocess current rule configuration.

Methods inherited from interface org.apache.shardingsphere.spi.typed.TypedSPI

getProps, getType, getTypeAliases, setProps

Method Detail

preprocess

R preprocess(R currentRuleConfig,
             R toBeAlteredRuleConfig)

Preprocess current rule configuration.

Parameters:

currentRuleConfig - current rule configuration to be updated

toBeAlteredRuleConfig - to be altered rule configuration

Returns:

altered current rule configuration