Package dev.frostlake.executor.commands

Class CreateNamespaceHandler

java.lang.Object

dev.frostlake.executor.commands.CreateNamespaceHandler

All Implemented Interfaces:

CommandHandler

public class CreateNamespaceHandler
extends Object
implements CommandHandler

Handles the namespace CREATE shapes — DATABASE and SCHEMA (including CLONE) — extracted from DDLCommandHandler, which keeps the CREATE dispatch and delegates here. The clone-data helpers (cloneSchemaData/cloneDatabaseData) and other shared helpers stay on the parent and are reached via the ddl back-reference.

Method Summary

Modifier and Type	Method	Description
Catalog	getCatalog()	Get catalog instance
QueryExecutor	getQueryExecutor()	Get query executor instance
Object	handleCreateDatabase(FrostlakeParser.CreateStatementContext ctx, boolean ifNotExists)
Object	handleCreateSchema(FrostlakeParser.CreateStatementContext ctx, boolean ifNotExists)

Methods inherited from class java.lang.Object

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

Methods inherited from interface dev.frostlake.executor.commands.CommandHandler

extractComment, extractComment, getText, getText, qualifiedNameParts

Method Details

getCatalog

public Catalog getCatalog()

Description copied from interface: CommandHandler

Get catalog instance

Specified by:

getCatalog in interface CommandHandler

Returns:

the engine's metastore catalog, holding the objects this handler reads and mutates

getQueryExecutor

public QueryExecutor getQueryExecutor()

Description copied from interface: CommandHandler

Get query executor instance

Specified by:

getQueryExecutor in interface CommandHandler

Returns:

the engine's query executor, for handlers that run nested queries or need session state

handleCreateDatabase

public Object handleCreateDatabase(FrostlakeParser.CreateStatementContext ctx,
 boolean ifNotExists)

handleCreateSchema

public Object handleCreateSchema(FrostlakeParser.CreateStatementContext ctx,
 boolean ifNotExists)