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Records event-processing failures durably, so that they can be compensated (retried) later.
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abstract class FailureRecordingHandler<E : EventExchange<*, *>>(chain: FilterChain<E>, errorHandler: ErrorHandler<E>, failureRecorder: FailureRecorder = FailureRecorder.NONE, ackOnUnrecordedFailure: Boolean = true, metrics: WowMetrics = WowMetrics.NONE) : Handler<E>
The event handler of one function: runs chain, then settles the ProcessingOutcome with failureRecorder and hands a failure to errorHandler.
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How the processing of one event by one function ended, and so whether its message is acknowledged.