Package dev.frostlake.executor.commands

Class BeginEndBlockHandler

java.lang.Object

dev.frostlake.executor.commands.BeginEndBlockHandler

All Implemented Interfaces:

CommandHandler

public class BeginEndBlockHandler
extends Object
implements CommandHandler

Handles Snowflake Scripting BEGIN … [EXCEPTION …] END blocks, extracted verbatim from SQLCommandVisitor.visitBeginEndBlock(dev.frostlake.parser.FrostlakeParser.BeginEndBlockContext) together with its cohesive exception-handling helpers (bindHandlerErrorVariables, shouldHandleException, matchesSnowflakeException — each used only by this path). Statement execution recurses back through visitor.visit(...); parse-text extraction (getOriginalText, getText) is reached through the visitor back-reference. The procedural scope/return/cursor state lives on the injected ProceduralExecutor, and cached result sets go through queryExecutor.getResultCache(), so the exact original behavior is preserved.

Constructor Summary

Constructors

Constructor	Description
BeginEndBlockHandler(Catalog catalog, QueryExecutor queryExecutor, SQLCommandVisitor visitor, ProceduralExecutor proceduralExecutor)

Method Summary

Modifier and Type	Method	Description
Catalog	getCatalog()	Get catalog instance
QueryExecutor	getQueryExecutor()	Get query executor instance
Object	handle(FrostlakeParser.BeginEndBlockContext ctx)

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

Constructor Details

BeginEndBlockHandler

public BeginEndBlockHandler(Catalog catalog,
 QueryExecutor queryExecutor,
 SQLCommandVisitor visitor,
 ProceduralExecutor proceduralExecutor)

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

handle

public Object handle(FrostlakeParser.BeginEndBlockContext ctx)