Enum SubscriptionState

  • All Implemented Interfaces:
    Serializable, Comparable<SubscriptionState>

    public enum SubscriptionState
    extends Enum<SubscriptionState>
    The state of a subscription.

    Subscriptions established when a new topic gets added, or the connection was established. If the subscribe call returns an error for the subscription, the state will remain FAILED and it will not try to re-subscribe while the connection is active.

    When the session (connection) disconnects, all subscriptions will automatically be reset to UNSUBSCRIBED.

    • Enum Constant Detail

      • UNSUBSCRIBED

        public static final SubscriptionState UNSUBSCRIBED
        The topic is not subscribed.
      • SUBSCRIBING

        public static final SubscriptionState SUBSCRIBING
        The topic is in the process of subscribing.
      • SUBSCRIBED

        public static final SubscriptionState SUBSCRIBED
        The topic is subscribed.
      • FAILED

        public static final SubscriptionState FAILED
        The topic could not be subscribed.
    • Method Detail

      • values

        public static SubscriptionState[] 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 (SubscriptionState c : SubscriptionState.values())
            System.out.println(c);
        
        Returns:
        an array containing the constants of this enum type, in the order they are declared
      • valueOf

        public static SubscriptionState 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