Package org.infinispan.reactive.publisher.impl

Enum DeliveryGuarantee

java.lang.Object
java.lang.Enum<DeliveryGuarantee>
org.infinispan.reactive.publisher.impl.DeliveryGuarantee
All Implemented Interfaces:
Serializable, Comparable<DeliveryGuarantee>
public enum DeliveryGuarantee extends Enum<DeliveryGuarantee>
Enumeration defining the possible delivery guarantees for entries.
Since:
10.0
Author:
wburns

  • Enum Constant Details

    • AT_MOST_ONCE

      public static final DeliveryGuarantee AT_MOST_ONCE
      The least strict guarantee that ensures that data is never read more than once, but may be missed. This guarantee is most performant as it never requires retrying data or returning extra data for the sake of consistency. However, under a stable topology this will return the same results as EXACTLY_ONCE.

    • AT_LEAST_ONCE

      public static final DeliveryGuarantee AT_LEAST_ONCE
      The in between guarantee that provides a view of all data, but may return duplicates during a toplogy change. This guarantee does not send identity values, but instead will retry an operation, most likely returning duplicates. However, under a stable topology this will return the same results as EXACTLY_ONCE.

    • EXACTLY_ONCE

      public static final DeliveryGuarantee EXACTLY_ONCE
      The most strict guarantee that guarantees that an entry is seen exactly one time in results. This is the most expensive guarantee as it may require copying identity values to the originator (ie. keys) to ensure that a value is not returned more than once for a given key.

  • Method Details

    • values

      public static DeliveryGuarantee[] values()
      Returns an array containing the constants of this enum type, in the order they are declared.
      Returns:
      an array containing the constants of this enum type, in the order they are declared

    • valueOf

      public static DeliveryGuarantee valueOf(String name)
      Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
      Parameters:
      name - the name of the enum constant to be returned.
      Returns:
      the enum constant with the specified name
      Throws:
      IllegalArgumentException - if this enum type has no constant with the specified name
      NullPointerException - if the argument is null

    • valueOf

      public static DeliveryGuarantee valueOf(int index)
      Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
      Parameters:
      index - the name of the enum constant to be returned.
      Returns:
      the enum constant with the specified name
      Throws:
      IllegalArgumentException - if this enum type has no constant with the specified name
      NullPointerException - if the argument is null