org.apache.calcite.adapter.csv

类 CsvSchema

java.lang.Object

org.apache.calcite.schema.impl.AbstractSchema

org.apache.calcite.adapter.csv.CsvSchema

所有已实现的接口:

org.apache.calcite.schema.Schema

public class CsvSchema
extends org.apache.calcite.schema.impl.AbstractSchema

Schema mapped onto a directory of CSV files. Each table in the schema is a CSV file in that directory.

嵌套类概要

从类继承的嵌套类/接口 org.apache.calcite.schema.impl.AbstractSchema

org.apache.calcite.schema.impl.AbstractSchema.Factory

从接口继承的嵌套类/接口 org.apache.calcite.schema.Schema

org.apache.calcite.schema.Schema.TableType

构造器概要

构造器

构造器和说明
CsvSchema(File directoryFile, CsvTable.Flavor flavor) Creates a CSV schema.

方法概要

限定符和类型	方法和说明
protected Map<String,org.apache.calcite.schema.Table>	getTableMap()

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

getExpression, getFunctionMultimap, getFunctionNames, getFunctions, getSubSchema, getSubSchemaMap, getSubSchemaNames, getTable, getTableNames, getType, getTypeMap, getTypeNames, isMutable, snapshot

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

CsvSchema

public CsvSchema(File directoryFile,
                 CsvTable.Flavor flavor)

Creates a CSV schema.

参数:

directoryFile - Directory that holds .csv files

flavor - Whether to instantiate flavor tables that undergo query optimization

方法详细资料

getTableMap

protected Map<String,org.apache.calcite.schema.Table> getTableMap()

覆盖:

getTableMap 在类中 org.apache.calcite.schema.impl.AbstractSchema