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com.twitter.finagle.service

ResponseClassifier

object ResponseClassifier

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  1. final def !=(arg0: Any): Boolean
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  2. final def ##: Int
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  3. final def ==(arg0: Any): Boolean
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  4. val Default: ResponseClassifier

    Finagle's default ResponseClassifier.

    Finagle's default ResponseClassifier.

    Finagle does not have application domain knowledge and as such this treats all Return responses as ResponseClass.Success, all retryable Throws as ResponseClass.RetryableFailure and all Throws as ResponseClass.NonRetryableFailure.

    It is a total function covering the entire input domain and as such it is recommended that it is used with user's classifiers:

    theirClassifier.applyOrElse(theirReqRep, ResponseClassifier.Default)
  5. val IgnoreIRTEs: ResponseClassifier

    The IgnoreIRTEs ResponseClassifier matches Default in all aspects except for how it handles IndividualRequestTimeoutExceptions specifically.

    The IgnoreIRTEs ResponseClassifier matches Default in all aspects except for how it handles IndividualRequestTimeoutExceptions specifically. For IRTEs, this ResponseClassifier considers them to be ResponseClass.Ignored.

    This ResponseClassifier is useful for when a particular Finagle client has a very low RequestTimeout set, such that receiving a response within that window is seen as fortuitous, and that not receiving a response within that window is not seen as problematic. In this case, the timed out request is treated as ignorable, and should not be seen as or counted as a failure.

  6. val RetryOnChannelClosed: ResponseClassifier

    Implementation for the ResponseClassifier that retries requests on all channel closed exceptions.

    Implementation for the ResponseClassifier that retries requests on all channel closed exceptions.

    This is safe to use for idempotent requests.

  7. val RetryOnThrows: ResponseClassifier

    Implementation for the ResponseClassifier that retries requests on all throws.

    Implementation for the ResponseClassifier that retries requests on all throws.

    This would be useful for instances of idempotent requests, for example on database reads or similar.

  8. val RetryOnTimeout: ResponseClassifier

    Implementation for the ResponseClassifier that retries requests on all timeout exceptions.

    Implementation for the ResponseClassifier that retries requests on all timeout exceptions.

    This would be useful for instances of idempotent requests, for example on database reads or similar. May also be useful for non-idempotent requests depending on how the remote service handles duplicate requests.

  9. val RetryOnWriteExceptions: ResponseClassifier

    Implementation for the ResponseClassifier that retries requests on write exceptions.

    Implementation for the ResponseClassifier that retries requests on write exceptions.

    These are always safe to retry, so this is safe even in non-idempotent cases.

  10. final def asInstanceOf[T0]: T0
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  11. def clone(): AnyRef
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  12. final def eq(arg0: AnyRef): Boolean
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  14. def finalize(): Unit
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  15. final def getClass(): Class[_ <: AnyRef]
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  16. def hashCode(): Int
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  17. final def isInstanceOf[T0]: Boolean
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  18. def named(name: String)(underlying: ResponseClassifier): ResponseClassifier

    Create a ResponseClassifier with the given name for its toString.

    Create a ResponseClassifier with the given name for its toString.

    Note

    be careful when underlying composes other ResponseClassifiers which are not total.

  19. final def ne(arg0: AnyRef): Boolean
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  20. final def notify(): Unit
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  21. final def notifyAll(): Unit
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  22. final def synchronized[T0](arg0: => T0): T0
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  23. def toString(): String
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  24. final def wait(): Unit
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    @throws(classOf[java.lang.InterruptedException])
  25. final def wait(arg0: Long, arg1: Int): Unit
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    @throws(classOf[java.lang.InterruptedException])
  26. final def wait(arg0: Long): Unit
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    @throws(classOf[java.lang.InterruptedException]) @native()

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