org.apache.calcite.adapter.csv

类 CsvTranslatableTable

java.lang.Object

org.apache.calcite.schema.impl.AbstractTable

org.apache.calcite.adapter.csv.CsvTable

org.apache.calcite.adapter.csv.CsvTranslatableTable

所有已实现的接口:

org.apache.calcite.schema.QueryableTable, org.apache.calcite.schema.Table, org.apache.calcite.schema.TranslatableTable, org.apache.calcite.schema.Wrapper

public class CsvTranslatableTable
extends CsvTable
implements org.apache.calcite.schema.QueryableTable, org.apache.calcite.schema.TranslatableTable

Table based on a CSV file.

嵌套类概要

从类继承的嵌套类/接口 org.apache.calcite.adapter.csv.CsvTable

CsvTable.Flavor

字段概要

从类继承的字段 org.apache.calcite.adapter.csv.CsvTable

protoRowType, source

方法概要

限定符和类型	方法和说明
<T> org.apache.calcite.linq4j.Queryable<T>	asQueryable(org.apache.calcite.linq4j.QueryProvider queryProvider, org.apache.calcite.schema.SchemaPlus schema, String tableName)
Type	getElementType()
org.apache.calcite.linq4j.tree.Expression	getExpression(org.apache.calcite.schema.SchemaPlus schema, String tableName, Class clazz)
org.apache.calcite.linq4j.Enumerable<Object>	project(org.apache.calcite.DataContext root, int[] fields) Returns an enumerable over a given projection of the fields.
org.apache.calcite.rel.RelNode	toRel(org.apache.calcite.plan.RelOptTable.ToRelContext context, org.apache.calcite.plan.RelOptTable relOptTable)
String	toString()

从类继承的方法 org.apache.calcite.adapter.csv.CsvTable

getFieldTypes, getRowType, isStream

从类继承的方法 org.apache.calcite.schema.impl.AbstractTable

getJdbcTableType, getStatistic, isRolledUp, rolledUpColumnValidInsideAgg, unwrap

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.calcite.schema.Table

getJdbcTableType, getRowType, getStatistic, isRolledUp, rolledUpColumnValidInsideAgg

方法详细资料

toString

public String toString()

覆盖:

toString 在类中 Object

project

public org.apache.calcite.linq4j.Enumerable<Object> project(org.apache.calcite.DataContext root,
                                                            int[] fields)

Returns an enumerable over a given projection of the fields.

Called from generated code.

getExpression

public org.apache.calcite.linq4j.tree.Expression getExpression(org.apache.calcite.schema.SchemaPlus schema,
                                                               String tableName,
                                                               Class clazz)

指定者:

getExpression 在接口中 org.apache.calcite.schema.QueryableTable

getElementType

public Type getElementType()

指定者:

getElementType 在接口中 org.apache.calcite.schema.QueryableTable

asQueryable

public <T> org.apache.calcite.linq4j.Queryable<T> asQueryable(org.apache.calcite.linq4j.QueryProvider queryProvider,
                                                              org.apache.calcite.schema.SchemaPlus schema,
                                                              String tableName)

指定者:

asQueryable 在接口中 org.apache.calcite.schema.QueryableTable

toRel

public org.apache.calcite.rel.RelNode toRel(org.apache.calcite.plan.RelOptTable.ToRelContext context,
                                            org.apache.calcite.plan.RelOptTable relOptTable)

指定者:

toRel 在接口中 org.apache.calcite.schema.TranslatableTable