Package org.apache.sling.scripting.sightly.compiler.commands

Interface CommandHandler

All Known Implementing Classes:

BroadcastHandler, CoalescingWrites, LoggingHandler, SanityChecker, VisitorHandler

@ProviderType
public interface CommandHandler

The CommandHandler is the mechanism through which a CommandStream can be processed synchronously, as the stream is written.

Method Summary

Modifier and Type	Method	Description
void	onDone()	This method is called when the stream has been closed.
void	onEmit(Command command)	Allows this handler to process the Command that was just written into the stream to which this handler was attached.
void	onError(String errorMessage)	Allows this handler to process error states.

Method Details

onEmit

void onEmit(Command command)

Allows this handler to process the Command that was just written into the stream to which this handler was attached.

Parameters:

command - the received command

onError

void onError(String errorMessage)

Allows this handler to process error states.

Parameters:

errorMessage - the error's message

onDone

void onDone()

This method is called when the stream has been closed. The contract is that after this call, no other commands or errors will be emitted.