RetainedHandlingPolicy Type — netty Architecture

Source Code

codec-mqtt/src/main/java/io/netty/handler/codec/mqtt/MqttSubscriptionOption.java lines 23–50

    public enum RetainedHandlingPolicy {
        SEND_AT_SUBSCRIBE(0),
        SEND_AT_SUBSCRIBE_IF_NOT_YET_EXISTS(1),
        DONT_SEND_AT_SUBSCRIBE(2);

        private final int value;

        RetainedHandlingPolicy(int value) {
            this.value = value;
        }

        public int value() {
            return value;
        }

        public static RetainedHandlingPolicy valueOf(int value) {
            switch (value) {
            case 0:
                return SEND_AT_SUBSCRIBE;
            case 1:
                return SEND_AT_SUBSCRIBE_IF_NOT_YET_EXISTS;
            case 2:
                return DONT_SEND_AT_SUBSCRIBE;
            default:
                throw new IllegalArgumentException("invalid RetainedHandlingPolicy: " + value);
            }
        }
    }