org.axonframework.commandhandling.gateway
Interface RetryScheduler
- All Known Implementing Classes:
- IntervalRetryScheduler
public interface RetryScheduler
Interface towards a mechanism that decides whether to schedule a command for execution when a previous attempts
resulted in an exception.
- Since:
- 2.0
- Author:
- Allard Buijze
scheduleRetry
boolean scheduleRetry(CommandMessage commandMessage,
RuntimeException lastFailure,
List<Class<? extends Throwable>[]> failures,
Runnable commandDispatch)
- Inspect the given
commandMessage
that failed with given lastFailure
. The given
failures
provides a list of previous failures known for this command. The
commandDispatch
task can be used to schedule the command for dispatching.
The return value of this method indicates whether the command has been scheduled for a retry. When
true
, the original callbacks should not be invoked, as command execution is subject to a retry.
When false
, the failure is interpreted as terminal and the callback will be invoked with the last
failure recorded.
If the implementation throws an Exception, that exception is passed as the failure to the original callback.
- Parameters:
commandMessage
- The Command Message being dispatchedlastFailure
- The last failure recorded for this commandfailures
- A condensed view of all known failures of this command. Each element in the array
represents the cause of the element preceding it.commandDispatch
- The task to be executed to retry a command
- Returns:
true
if the command has been rescheduled, otherwise false
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