org.apache.calcite.adapter.csv

Class CsvFilterableTable

java.lang.Object

org.apache.calcite.schema.impl.AbstractTable

org.apache.calcite.adapter.csv.CsvTable

org.apache.calcite.adapter.csv.CsvFilterableTable

All Implemented Interfaces:

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

public class CsvFilterableTable
extends CsvTable
implements org.apache.calcite.schema.FilterableTable

Table based on a CSV file that can implement simple filtering.

It implements the FilterableTable interface, so Calcite gets data by calling the scan(DataContext, List) method.

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

protoRowType, source

Constructor Summary

Constructors

Constructor and Description
CsvFilterableTable(org.apache.calcite.util.Source source, org.apache.calcite.rel.type.RelProtoDataType protoRowType) Creates a CsvFilterableTable.

Method Summary

Modifier and Type	Method and Description
org.apache.calcite.linq4j.Enumerable<Object[]>	scan(org.apache.calcite.DataContext root, List<org.apache.calcite.rex.RexNode> filters)
String	toString()

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

getFieldTypes, getRowType, isStream

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

getJdbcTableType, getStatistic, isRolledUp, rolledUpColumnValidInsideAgg, unwrap

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, isRolledUp, rolledUpColumnValidInsideAgg

Constructor Detail

CsvFilterableTable

public CsvFilterableTable(org.apache.calcite.util.Source source,
                          org.apache.calcite.rel.type.RelProtoDataType protoRowType)

Creates a CsvFilterableTable.

Method Detail

toString

public String toString()

Overrides:

toString in class Object

scan

public org.apache.calcite.linq4j.Enumerable<Object[]> scan(org.apache.calcite.DataContext root,
                                                           List<org.apache.calcite.rex.RexNode> filters)

Specified by:

scan in interface org.apache.calcite.schema.FilterableTable