Package io.gravitee.gateway.reactive.api.qos

Enum Class Qos

java.lang.Object

java.lang.Enum<Qos>

io.gravitee.gateway.reactive.api.qos.Qos

All Implemented Interfaces:

Serializable, Comparable<Qos>, Constable

public enum Qos
extends Enum<Qos>

Author:

Guillaume LAMIRAND (guillaume.lamirand at graviteesource.com), GraviteeSource Team

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
AT_LEAST_ONCE	This level of QoS warranties that messages are delivered once or many times.
AT_MOST_ONCE	This level of QoS warranty that messages are delivered 0 or once without any duplication.
AUTO	This QoS level will adapt the QoS depending on EntrypointConnector and EndpointConnector capabilities allowing a trade-off between performance and delivery warranty.
NONE	This QoS level allows a high throughput and good performance but without any warranty regarding the delivery.

Method Summary

Modifier and Type	Method	Description
static Qos	fromLabel(String label)
static Qos	valueOf(String name)	Returns the enum constant of this class with the specified name.
static Qos[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

NONE

public static final Qos NONE

This QoS level allows a high throughput and good performance but without any warranty regarding the delivery. After a failure or any disconnection, client will only receive new messages sent after its reconnection.

AUTO

public static final Qos AUTO

This QoS level will adapt the QoS depending on EntrypointConnector and EndpointConnector capabilities allowing a trade-off between performance and delivery warranty. Messages could be received 0, 1 or many times.

AT_MOST_ONCE

public static final Qos AT_MOST_ONCE

This level of QoS warranty that messages are delivered 0 or once without any duplication. Depending on EntrypointConnector and EndpointConnector, performance could be degraded.

AT_LEAST_ONCE

public static final Qos AT_LEAST_ONCE

This level of QoS warranties that messages are delivered once or many times. This is a good trade-off in terms of performance comparing to AT_MOST_ONCE especially when the EntrypointConnector is not able to resume the streams of messages after a failure.

Method Details

values

public static Qos[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

an array containing the constants of this enum class, in the order they are declared

valueOf

public static Qos valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (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 class has no constant with the specified name

NullPointerException - if the argument is null

fromLabel

public static Qos fromLabel(String label)