Trait/Object

zio.query

Cache

Related Docs: object Cache | package query

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trait Cache extends AnyRef

A Cache maintains an internal state with a mapping from requests to Refs that will contain the result of those requests when they are executed. This is used internally by the library to provide deduplication and caching of requests.

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Abstract Value Members

  1. abstract def get[E, A](request: Request[E, A])(implicit trace: ZTraceElement): IO[Unit, Ref[Option[Either[E, A]]]]

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    Looks up a request in the cache, failing with the unit value if the request is not in the cache, succeeding with Ref(None) if the request is in the cache but has not been executed yet, or Ref(Some(value)) if the request has been executed.

  2. abstract def lookup[R, E, A, B](request: A)(implicit ev: <:<[A, Request[E, B]], trace: ZTraceElement): UIO[Either[Ref[Option[Either[E, B]]], Ref[Option[Either[E, B]]]]]

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    Looks up a request in the cache.

    Looks up a request in the cache. If the request is not in the cache returns a Left with a Ref that can be set with a Some to complete the request. If the request is in the cache returns a Right with a Ref that either contains Some with a result if the request has been executed or None if the request has not been executed yet.

  3. abstract def put[E, A](request: Request[E, A], result: Ref[Option[Either[E, A]]])(implicit trace: ZTraceElement): UIO[Unit]

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    Inserts a request and a Ref that will contain the result of the request when it is executed into the cache.

  4. abstract def remove[E, A](request: Request[E, A])(implicit trace: ZTraceElement): UIO[Unit]

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    Removes a request from the cache.

Concrete Value Members

  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. final def asInstanceOf[T0]: T0

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  5. def clone(): AnyRef

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  6. final def eq(arg0: AnyRef): Boolean

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  7. def equals(arg0: Any): Boolean

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  8. def finalize(): Unit

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  9. final def getClass(): Class[_]

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  10. def hashCode(): Int

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  11. final def isInstanceOf[T0]: Boolean

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  12. final def ne(arg0: AnyRef): Boolean

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  13. final def notify(): Unit

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  14. final def notifyAll(): Unit

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  15. final def synchronized[T0](arg0: ⇒ T0): T0

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  16. def toString(): String

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  17. final def wait(): Unit

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  18. final def wait(arg0: Long, arg1: Int): Unit

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  19. final def wait(arg0: Long): Unit

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