Package org.apache.drill.exec.planner.sql.handlers

Class SchemaHandler

java.lang.Object

org.apache.drill.exec.planner.sql.handlers.AbstractSqlHandler

org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler

org.apache.drill.exec.planner.sql.handlers.SchemaHandler

Direct Known Subclasses:

SchemaHandler.Add, SchemaHandler.Create, SchemaHandler.Describe, SchemaHandler.Drop, SchemaHandler.Remove

public abstract class SchemaHandler
extends DefaultSqlHandler

Parent class for CREATE / DROP / DESCRIBE / ALTER SCHEMA handlers. Contains common logic on how extract workspace, output error result.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	SchemaHandler.Add	ALTER SCHEMA ADD command handler.
static class	SchemaHandler.Create	CREATE SCHEMA command handler.
static class	SchemaHandler.Describe	DESCRIBE SCHEMA FOR TABLE command handler.
static class	SchemaHandler.Drop	DROP SCHEMA command handler.
static class	SchemaHandler.Remove	ALTER SCHEMA REMOVE command handler.

Nested classes/interfaces inherited from class org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler

DefaultSqlHandler.ConvertedRelNode, DefaultSqlHandler.MetaDataProviderModifier

Field Summary

Fields inherited from class org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler

config, context

Method Summary

Modifier and Type	Method	Description
WorkspaceSchemaFactory.WorkspaceSchema	getWorkspaceSchema(List<String> tableSchema, String tableName)

Methods inherited from class org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler

addRenamedProject, convertToDrel, convertToPlan, convertToPop, convertToPrel, convertToRawDrel, getPlan, getPops, log, log, log, logAndSetTextPlan, rewrite, transform, transform, validateAndConvert, validateNode

Methods inherited from class org.apache.drill.exec.planner.sql.handlers.AbstractSqlHandler

unwrap

Methods inherited from class java.lang.Object

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

Method Details

getWorkspaceSchema

public WorkspaceSchemaFactory.WorkspaceSchema getWorkspaceSchema(List<String> tableSchema,
 String tableName)