TranslatableTable (Apache Calcite API)

All Superinterfaces:

Table

All Known Implementing Classes:

CassandraTable, CsvTranslatableTable, CsvTranslatableTable, DruidTable, ElasticsearchTable, GeodeTable, InnodbTable, JdbcTable, MaterializedViewTable, MockCatalogReader.MockDynamicTable, MockCatalogReader.MockModifiableViewRelOptTable.MockModifiableViewTable, ModifiableViewTable, MongoTable, PigTable, StarTable, ViewTable
```
public interface TranslatableTable
extends Table
```
Extension to Table that specifies how it is to be translated to a relational expression.
It is optional for a Table to implement this interface. If Table does not implement this interface, it will be converted to an EnumerableTableScan. Generally a Table will implement this interface to create a particular subclass of RelNode, and also register rules that act on that particular subclass of RelNode.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`RelNode`	`toRel(RelOptTable.ToRelContext context, RelOptTable relOptTable)`	Converts this table into a `relational expression`.

Methods inherited from interface org.apache.calcite.schema.Table
getJdbcTableType, getRowType, getStatistic, isRolledUp, rolledUpColumnValidInsideAgg

Method Detail

toRel

RelNode toRel(RelOptTable.ToRelContext context,
              RelOptTable relOptTable)

Converts this table into a relational expression.