org.axonframework.commandhandling.disruptor
Class BlacklistDetectingCallback<R>

java.lang.Object
  org.axonframework.commandhandling.disruptor.BlacklistDetectingCallback<R>

Type Parameters:

R - The return value of the Command

All Implemented Interfaces:

CommandCallback<R>

public class BlacklistDetectingCallback<R>
extends Object
implements CommandCallback<R>

Wrapper for command handler Callbacks that detects blacklisted aggregates and starts a cleanup process when an aggregate is blacklisted.

Since:

2.0

Author:

Allard Buijze

Constructor Summary

BlacklistDetectingCallback(CommandCallback<R> delegate, CommandMessage command, com.lmax.disruptor.RingBuffer<CommandHandlingEntry> ringBuffer, DisruptorCommandBus commandBus, boolean rescheduleOnCorruptState)
Initializes the callback which allows the given command to be rescheduled on the given ringBuffer if it failed due to a corrupt state.

Method Summary

boolean	hasDelegate() Indicates whether this callback has a delegate that needs to be notified of the command handling result
void	onFailure(Throwable cause) Invoked when command handling execution resulted in an error.
void	onSuccess(R result) Invoked when command handling execution was successful.

Methods inherited from class java.lang.Object

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

Constructor Detail

BlacklistDetectingCallback

public BlacklistDetectingCallback(CommandCallback<R> delegate,
                                  CommandMessage command,
                                  com.lmax.disruptor.RingBuffer<CommandHandlingEntry> ringBuffer,
                                  DisruptorCommandBus commandBus,
                                  boolean rescheduleOnCorruptState)

Initializes the callback which allows the given command to be rescheduled on the given ringBuffer if it failed due to a corrupt state.

Parameters:

delegate - The callback to invoke when an exception occurred

command - The command being executed

ringBuffer - The RingBuffer on which an Aggregate Cleanup should be scheduled when a corrupted aggregate state was detected

commandBus - The CommandBus on which the command should be rescheduled if it was executed on a corrupt aggregate

rescheduleOnCorruptState - Whether the command should be retried if it has been executed against corrupt state

Method Detail

onSuccess

public void onSuccess(R result)

Description copied from interface: CommandCallback

Invoked when command handling execution was successful.

Specified by:

onSuccess in interface CommandCallback<R>

Parameters:

result - The result of the command handling execution, if any.

onFailure

public void onFailure(Throwable cause)

Description copied from interface: CommandCallback

Invoked when command handling execution resulted in an error.

Specified by:

onFailure in interface CommandCallback<R>

Parameters:

cause - The exception raised during command handling

hasDelegate

public boolean hasDelegate()

Indicates whether this callback has a delegate that needs to be notified of the command handling result

Returns:

true if this callback has a delegate, otherwise false.