org.apache.drill.exec.store.cassandra.schema

Class CassandraRootDrillSchema

java.lang.Object

org.apache.drill.exec.store.AbstractSchema

org.apache.drill.exec.store.cassandra.schema.CassandraRootDrillSchema

All Implemented Interfaces:

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

public class CassandraRootDrillSchema
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
CassandraRootDrillSchema(String name, StoragePlugin plugin, org.apache.calcite.schema.SchemaFactory schemaFactory, org.apache.calcite.schema.SchemaPlus parent, String parentName, Map<String,Object> configMap)

Method Summary

Modifier and Type	Method and Description
org.apache.calcite.linq4j.tree.Expression	getExpression(org.apache.calcite.schema.SchemaPlus parentSchema, String name)
org.apache.calcite.schema.Schema	getSubSchema(String name)
String	getTypeName() Returns string describing schema type which shows where the schema came from.

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, getSubSchemaNames, getTable, getTableNames, getTableNamesAndTypes, getTablesByNames, getType, getTypeMap, getTypeNames, getUser, isMutable, needToImpersonateReadingData, showInInformationSchema, snapshot, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

CassandraRootDrillSchema

public CassandraRootDrillSchema(String name,
                                StoragePlugin plugin,
                                org.apache.calcite.schema.SchemaFactory schemaFactory,
                                org.apache.calcite.schema.SchemaPlus parent,
                                String parentName,
                                Map<String,Object> configMap)

Method Detail

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

getSubSchema

public org.apache.calcite.schema.Schema getSubSchema(String name)

Specified by:

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

Overrides:

getSubSchema in class AbstractSchema

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