Package org.apache.shardingsphere.sqlfederation.spi

Interface SQLFederationDecider<T extends ShardingSphereRule>

Type Parameters:

T - type of rule

All Superinterfaces:

org.apache.shardingsphere.infra.util.spi.type.ordered.OrderedSPI<T>

public interface SQLFederationDecider<T extends ShardingSphereRule>
extends org.apache.shardingsphere.infra.util.spi.type.ordered.OrderedSPI<T>

SQL federation decider.

Method Summary

Modifier and Type	Method	Description
boolean	decide(org.apache.shardingsphere.infra.binder.statement.dml.SelectStatementContext selectStatementContext, List<Object> parameters, ShardingSphereRuleMetaData globalRuleMetaData, ShardingSphereDatabase database, T rule, Collection<DataNode> includedDataNodes)	Judge whether to use SQL federation.

Methods inherited from interface org.apache.shardingsphere.infra.util.spi.type.ordered.OrderedSPI

getOrder, getTypeClass

Method Detail

decide

boolean decide(org.apache.shardingsphere.infra.binder.statement.dml.SelectStatementContext selectStatementContext,
               List<Object> parameters,
               ShardingSphereRuleMetaData globalRuleMetaData,
               ShardingSphereDatabase database,
               T rule,
               Collection<DataNode> includedDataNodes)

Judge whether to use SQL federation.

Parameters:

selectStatementContext - select statement context

parameters - parameters

globalRuleMetaData - global rule meta data

database - database

rule - rule

includedDataNodes - included data nodes

Returns:

use SQL federation or not