Package org.apache.calcite.adapter.redis

Class RedisTable

java.lang.Object

org.apache.calcite.schema.impl.AbstractTable

org.apache.calcite.adapter.redis.RedisTable

All Implemented Interfaces:

ScannableTable, Table, Wrapper

public class RedisTable
extends AbstractTable
implements ScannableTable

Table mapped onto a redis table.

Constructor Summary

Constructors

Constructor	Description
RedisTable(org.apache.calcite.adapter.redis.RedisSchema schema, String tableName, RelProtoDataType protoRowType, Map<String,Object> allFields, String dataFormat, RedisConfig redisConfig)

Method Summary

Modifier and Type	Method	Description
RelDataType	getRowType(RelDataTypeFactory typeFactory)	Returns this table's row type.
Enumerable<@Nullable Object[]>	scan(DataContext root)	Returns an enumerator over the rows in this Table.

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, toString, wait, wait, wait

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

getJdbcTableType, getStatistic, isRolledUp, rolledUpColumnValidInsideAgg

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

maybeUnwrap, unwrapOrThrow

Constructor Details

RedisTable

public RedisTable(org.apache.calcite.adapter.redis.RedisSchema schema,
 String tableName,
 RelProtoDataType protoRowType,
 Map<String,Object> allFields,
 String dataFormat,
 RedisConfig redisConfig)

Method Details

getRowType

public RelDataType getRowType(RelDataTypeFactory typeFactory)

Description copied from interface: Table

Returns this table's row type.

This is a struct type whose fields describe the names and types of the columns in this table.

The implementer must use the type factory provided. This ensures that the type is converted into a canonical form; other equal types in the same query will use the same object.

Specified by:

getRowType in interface Table

Parameters:

typeFactory - Type factory with which to create the type

Returns:

Row type

scan

public Enumerable<@Nullable Object[]> scan(DataContext root)

Description copied from interface: ScannableTable

Returns an enumerator over the rows in this Table. Each row is represented as an array of its column values.

Specified by:

scan in interface ScannableTable