org.apache.calcite.jdbc

Class DynamicRootSchema.RootSchema

java.lang.Object

org.apache.drill.exec.store.AbstractSchema

org.apache.calcite.jdbc.DynamicRootSchema.RootSchema

All Implemented Interfaces:

AutoCloseable, org.apache.calcite.schema.Schema, SchemaPartitionExplorer

Enclosing class:

DynamicRootSchema

public static class DynamicRootSchema.RootSchema
extends AbstractSchema

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.calcite.schema.Schema

org.apache.calcite.schema.Schema.TableType

Field Summary

Fields inherited from class org.apache.drill.exec.store.AbstractSchema

name, SCHEMA_SEPARATOR, schemaPath

Constructor Summary

Constructors

Constructor and Description
RootSchema(StoragePluginRegistry storages)

Method Summary

Modifier and Type	Method and Description
org.apache.calcite.linq4j.tree.Expression	getExpression(org.apache.calcite.schema.SchemaPlus parentSchema, String name)
Set<String>	getSubSchemaNames()
String	getTypeName() Returns string describing schema type which shows where the schema came from.
boolean	showInInformationSchema() Reports whether to show items from this schema in INFORMATION_SCHEMA tables.

Methods inherited from class org.apache.drill.exec.store.AbstractSchema

appendToStatsTable, applyFunctionParameters, areTableNamesCaseSensitive, close, createNewTable, createNewTable, createStatsTable, createView, dropTable, dropView, getDefaultSchema, getFullSchemaName, getFunctionNames, getFunctionParameters, getFunctions, getName, getSchemaPath, getStatsTable, getSubPartitions, getSubSchema, getTable, getTableNames, getTableNamesAndTypes, getTablesByNames, getType, getTypeMap, getTypeNames, getUser, isMutable, needToImpersonateReadingData, snapshot, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

RootSchema

public RootSchema(StoragePluginRegistry storages)

Method Detail

getSubSchemaNames

public Set<String> getSubSchemaNames()

Specified by:

getSubSchemaNames in interface org.apache.calcite.schema.Schema

Overrides:

getSubSchemaNames in class AbstractSchema

getTypeName

public String getTypeName()

Description copied from class: AbstractSchema

Returns string describing schema type which shows where the schema came from. Good practice here is to return json type name of storage plugin's config.

Specified by:

getTypeName in class AbstractSchema

Returns:

schema type name

getExpression

public org.apache.calcite.linq4j.tree.Expression getExpression(org.apache.calcite.schema.SchemaPlus parentSchema,
                                                               String name)

Specified by:

getExpression in interface org.apache.calcite.schema.Schema

Overrides:

getExpression in class AbstractSchema

showInInformationSchema

public boolean showInInformationSchema()

Description copied from class: AbstractSchema

Reports whether to show items from this schema in INFORMATION_SCHEMA tables. (Controls ... TODO: Doc.: Mention what this typically controls or affects.)

This base implementation returns true.

Overrides:

showInInformationSchema in class AbstractSchema