Package io.camunda.zeebe.engine.processing.streamprocessor

Interface CommandProcessor<T extends UnifiedRecordValue>

All Known Implementing Classes:

CreateProcessInstanceProcessor, CreateProcessInstanceWithResultProcessor, JobCancelProcessor, JobCompleteProcessor, JobFailProcessor, JobRecurProcessor, JobThrowErrorProcessor, JobTimeOutProcessor, JobUpdateRetriesProcessor

public interface CommandProcessor<T extends UnifiedRecordValue>

High-level record processor abstraction that implements the common behavior of most command-handling processors.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static interface	CommandProcessor.CommandControl<T>

Method Summary

Modifier and Type	Method	Description
default void	afterAccept(TypedCommandWriter commandWriter, StateWriter stateWriter, long key, Intent intent, T value)
default boolean	onCommand(TypedRecord<T> command, CommandProcessor.CommandControl<T> commandControl)
default TypedRecordProcessor.ProcessingError	tryHandleError(TypedRecord<T> command, Throwable error)	Try to handle an error that occurred during processing.

Method Details

onCommand

default boolean onCommand(TypedRecord<T> command,
 CommandProcessor.CommandControl<T> commandControl)

afterAccept

default void afterAccept(TypedCommandWriter commandWriter,
 StateWriter stateWriter,
 long key,
 Intent intent,
 T value)

tryHandleError

default TypedRecordProcessor.ProcessingError tryHandleError(TypedRecord<T> command,
 Throwable error)

Try to handle an error that occurred during processing.

Parameters:

command - The command that was being processed when the error occurred

error - The error that occurred, and the processor should attempt to handle

Returns:

The type of the processing error. Default: TypedRecordProcessor.ProcessingError.UNEXPECTED_ERROR.