org.apache.shardingsphere.sqlfederation.optimizer.util

类 SQLFederationPlannerUtil

java.lang.Object

org.apache.shardingsphere.sqlfederation.optimizer.util.SQLFederationPlannerUtil

public final class SQLFederationPlannerUtil
extends Object

SQL federation planner util.

构造器概要

构造器

构造器和说明
SQLFederationPlannerUtil()

方法概要

限定符和类型	方法和说明
static org.apache.calcite.prepare.CalciteCatalogReader	createCatalogReader(String schemaName, org.apache.calcite.schema.Schema schema, org.apache.calcite.rel.type.RelDataTypeFactory relDataTypeFactory, org.apache.calcite.config.CalciteConnectionConfig connectionConfig) Create catalog reader.
static org.apache.calcite.plan.RelOptPlanner	createHepPlanner() Create new instance of hep planner.
static org.apache.calcite.plan.RelOptCluster	createRelOptCluster(org.apache.calcite.rel.type.RelDataTypeFactory relDataTypeFactory) Create rel opt cluster.
static org.apache.calcite.sql2rel.SqlToRelConverter	createSqlToRelConverter(org.apache.calcite.prepare.CalciteCatalogReader catalogReader, org.apache.calcite.sql.validate.SqlValidator validator, org.apache.calcite.plan.RelOptCluster cluster, SQLParserRule sqlParserRule, DatabaseType databaseType, boolean needsViewExpand) Create sql to rel converter.
static org.apache.calcite.sql.validate.SqlValidator	createSqlValidator(org.apache.calcite.prepare.CalciteCatalogReader catalogReader, org.apache.calcite.rel.type.RelDataTypeFactory relDataTypeFactory, DatabaseType databaseType, org.apache.calcite.config.CalciteConnectionConfig connectionConfig) Create sql validator.
static org.apache.calcite.plan.RelOptPlanner	createVolcanoPlanner() Create new instance of volcano planner.

从类继承的方法 java.lang.Object

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

构造器详细资料

SQLFederationPlannerUtil

public SQLFederationPlannerUtil()

方法详细资料

createVolcanoPlanner

public static org.apache.calcite.plan.RelOptPlanner createVolcanoPlanner()

Create new instance of volcano planner.

返回:

volcano planner instance

createHepPlanner

public static org.apache.calcite.plan.RelOptPlanner createHepPlanner()

Create new instance of hep planner.

返回:

hep planner instance

createCatalogReader

public static org.apache.calcite.prepare.CalciteCatalogReader createCatalogReader(String schemaName,
                                                                                  org.apache.calcite.schema.Schema schema,
                                                                                  org.apache.calcite.rel.type.RelDataTypeFactory relDataTypeFactory,
                                                                                  org.apache.calcite.config.CalciteConnectionConfig connectionConfig)

Create catalog reader.

参数:

schemaName - schema name

schema - schema

relDataTypeFactory - rel data type factory

connectionConfig - connection config

返回:

calcite catalog reader

createSqlValidator

public static org.apache.calcite.sql.validate.SqlValidator createSqlValidator(org.apache.calcite.prepare.CalciteCatalogReader catalogReader,
                                                                              org.apache.calcite.rel.type.RelDataTypeFactory relDataTypeFactory,
                                                                              DatabaseType databaseType,
                                                                              org.apache.calcite.config.CalciteConnectionConfig connectionConfig)

Create sql validator.

参数:

catalogReader - catalog reader

relDataTypeFactory - rel data type factory

databaseType - database type

connectionConfig - connection config

返回:

sql validator

createSqlToRelConverter

public static org.apache.calcite.sql2rel.SqlToRelConverter createSqlToRelConverter(org.apache.calcite.prepare.CalciteCatalogReader catalogReader,
                                                                                   org.apache.calcite.sql.validate.SqlValidator validator,
                                                                                   org.apache.calcite.plan.RelOptCluster cluster,
                                                                                   SQLParserRule sqlParserRule,
                                                                                   DatabaseType databaseType,
                                                                                   boolean needsViewExpand)

Create sql to rel converter.

参数:

catalogReader - catalog reader

validator - validator

cluster - cluster

sqlParserRule - sql parser rule

databaseType - database type

needsViewExpand - whether sql needs view expand or not

返回:

sql to rel converter

createRelOptCluster

public static org.apache.calcite.plan.RelOptCluster createRelOptCluster(org.apache.calcite.rel.type.RelDataTypeFactory relDataTypeFactory)

Create rel opt cluster.

参数:

relDataTypeFactory - rel data type factory

返回:

rel opt cluster