org.apache.calcite.adapter.csv

Class CsvTranslatableTable

java.lang.Object

org.apache.calcite.schema.impl.AbstractTable

org.apache.calcite.adapter.csv.CsvTable

org.apache.calcite.adapter.csv.CsvTranslatableTable

All Implemented Interfaces:

QueryableTable, Table, TranslatableTable

public class CsvTranslatableTable
extends CsvTable
implements QueryableTable, TranslatableTable

Table based on a CSV file.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.calcite.adapter.csv.CsvTable

CsvTable.Flavor

Field Summary

Fields inherited from class org.apache.calcite.adapter.csv.CsvTable

fieldTypes, file

Method Summary

Methods

Modifier and Type	Method and Description
<T> Queryable<T>	asQueryable(QueryProvider queryProvider, SchemaPlus schema, String tableName)
Type	getElementType()
Expression	getExpression(SchemaPlus schema, String tableName, Class clazz)
Enumerable<Object>	project(int[] fields) Returns an enumerable over a given projection of the fields.
RelNode	toRel(RelOptTable.ToRelContext context, RelOptTable relOptTable)
String	toString()

Methods inherited from class org.apache.calcite.adapter.csv.CsvTable

getRowType

Methods inherited from class org.apache.calcite.schema.impl.AbstractTable

getJdbcTableType, getStatistic

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.calcite.schema.Table

getJdbcTableType, getRowType, getStatistic

Method Detail

toString

public String toString()

Overrides:

toString in class Object

project

public Enumerable<Object> project(int[] fields)

Returns an enumerable over a given projection of the fields.

Called from generated code.

getExpression

public Expression getExpression(SchemaPlus schema,
                       String tableName,
                       Class clazz)

Specified by:

getExpression in interface QueryableTable

getElementType

public Type getElementType()

Specified by:

getElementType in interface QueryableTable

asQueryable

public <T> Queryable<T> asQueryable(QueryProvider queryProvider,
                           SchemaPlus schema,
                           String tableName)

Specified by:

asQueryable in interface QueryableTable

toRel

public RelNode toRel(RelOptTable.ToRelContext context,
            RelOptTable relOptTable)

Specified by:

toRel in interface TranslatableTable