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

Class CassandraDrillSchema

java.lang.Object

org.apache.drill.exec.store.AbstractSchema

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

All Implemented Interfaces:

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

public class CassandraDrillSchema
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	Description
CassandraDrillSchema(String name, StoragePlugin plugin, org.apache.calcite.adapter.cassandra.CassandraSchema delegatingSchema)

Method Summary

Modifier and Type	Method	Description
org.apache.calcite.adapter.cassandra.CassandraSchema	getDelegatingSchema()
org.apache.calcite.linq4j.tree.Expression	getExpression(org.apache.calcite.schema.SchemaPlus parentSchema, String name)
org.apache.calcite.schema.Table	getTable(String tableName)
Set<String>	getTableNames()
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, getSubSchema, getSubSchemaNames, getTableNamesAndTypes, getTablesByNames, getType, getTypeMap, getTypeNames, getUser, isMutable, modifyTable, needToImpersonateReadingData, showInInformationSchema, snapshot, toString

Methods inherited from class java.lang.Object

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

Constructor Details

CassandraDrillSchema

public CassandraDrillSchema(String name,
 StoragePlugin plugin,
 org.apache.calcite.adapter.cassandra.CassandraSchema delegatingSchema)

Method Details

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

getTable

public org.apache.calcite.schema.Table getTable(String tableName)

Specified by:

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

Overrides:

getTable in class AbstractSchema

getTableNames

public Set<String> getTableNames()

Specified by:

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

Overrides:

getTableNames 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

getDelegatingSchema

public org.apache.calcite.adapter.cassandra.CassandraSchema getDelegatingSchema()