org.apache.calcite.adapter.csv

类 CsvTable

java.lang.Object

org.apache.calcite.schema.impl.AbstractTable

org.apache.calcite.adapter.csv.CsvTable

所有已实现的接口:

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

直接已知子类:

CsvFilterableTable, CsvScannableTable, CsvTranslatableTable

public abstract class CsvTable
extends org.apache.calcite.schema.impl.AbstractTable

Base class for table that reads CSV files.

嵌套类概要

嵌套类

限定符和类型	类和说明
static class	CsvTable.Flavor Various degrees of table "intelligence".

字段概要

字段

限定符和类型	字段和说明
protected org.apache.calcite.rel.type.RelProtoDataType	protoRowType
protected org.apache.calcite.util.Source	source

方法概要

限定符和类型	方法和说明
List<org.apache.calcite.adapter.csv.CsvFieldType>	getFieldTypes(org.apache.calcite.rel.type.RelDataTypeFactory typeFactory) Returns the field types of this CSV table.
org.apache.calcite.rel.type.RelDataType	getRowType(org.apache.calcite.rel.type.RelDataTypeFactory typeFactory)
protected boolean	isStream() Returns whether the table represents a stream.

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, toString, wait, wait, wait

字段详细资料

source

protected final org.apache.calcite.util.Source source

protoRowType

protected final org.apache.calcite.rel.type.RelProtoDataType protoRowType

方法详细资料

getRowType

public org.apache.calcite.rel.type.RelDataType getRowType(org.apache.calcite.rel.type.RelDataTypeFactory typeFactory)

getFieldTypes

public List<org.apache.calcite.adapter.csv.CsvFieldType> getFieldTypes(org.apache.calcite.rel.type.RelDataTypeFactory typeFactory)

Returns the field types of this CSV table.

isStream

protected boolean isStream()

Returns whether the table represents a stream.