Package org.infinispan.notifications

Enum Listener.Observation

  • All Implemented Interfaces:
    Serializable, Comparable<Listener.Observation>
    Enclosing class:
    Listener
    public static enum Listener.Observation
extends Enum<Listener.Observation>
    Enumeration that defines when a listener event can be observed. A listener can receive an event before and/or after an operation has occurred. If the user wishes to be notified just before the operation completes the listener should observe using PRE level. If the user wishes to be notified only after the operation completes the listener should observe using POST level. If the user wishes to have an event before and after they should observe using BOTH level.

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description
      BOTH
      Observation level used to be notified of an operation before and after it occurs
      POST
      Observation level used to only be notified of an operation after it has completed
      PRE
      Observation level used to only be notified of an operation before it completes

    • Enum Constant Detail

      • PRE

        public static final Listener.Observation PRE
        Observation level used to only be notified of an operation before it completes

      • POST

        public static final Listener.Observation POST
        Observation level used to only be notified of an operation after it has completed

      • BOTH

        public static final Listener.Observation BOTH
        Observation level used to be notified of an operation before and after it occurs

    • Method Detail

      • values

        public static Listener.Observation[] values()
        Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows: 
        for (Listener.Observation c : Listener.Observation.values())
    System.out.println(c);
        Returns:
        an array containing the constants of this enum type, in the order they are declared

      • valueOf

        public static Listener.Observation 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

      • shouldInvoke

        public abstract boolean shouldInvoke​(boolean pre)