Method Detail

• onProducerStart

   abstract void onProducerStart(String requestId, String producerName)

  Called whenever a producer starts processing unit of work. This method might be called multipletimes, but between any two consecutive calls to onProducerStart onProducerFinishWithSuccesswill be called exactly once.

• onProducerEvent

   abstract void onProducerEvent(String requestId, String producerName, String eventName)

  Called whenever an important producer-specific event occurs. This may only be called ifonProducerStart has been called, but corresponding onProducerFinishWith* method has not beencalled yet.

• onProducerFinishWithSuccess

   abstract void onProducerFinishWithSuccess(String requestId, String producerName, @Nullable() Map<String, String> extraMap)

  Called when a producer successfully finishes processing current unit of work.

  Parameters:

  extraMap - Additional parameters about the producer.

• onProducerFinishWithFailure

   abstract void onProducerFinishWithFailure(String requestId, String producerName, Throwable t, @Nullable() Map<String, String> extraMap)

  Called when producer finishes processing current unit of work due to an error.

  Parameters:

  extraMap - Additional parameters about the producer.

• onProducerFinishWithCancellation

   abstract void onProducerFinishWithCancellation(String requestId, String producerName, @Nullable() Map<String, String> extraMap)

  Called once when producer finishes due to cancellation.

  Parameters:

  extraMap - Additional parameters about the producer.

• onUltimateProducerReached

   abstract void onUltimateProducerReached(String requestId, String producerName, boolean successful)

  Called when the producer which can create the final result for a given request has completed.

  This can be used to determine which producer was best able to satisfy the request.

• requiresExtraMap

   abstract boolean requiresExtraMap(String requestId)