QoS (Hono Core 1.4.5 API)

java.lang.Object
- java.lang.Enum<QoS>
- - org.eclipse.hono.util.QoS

All Implemented Interfaces:

Serializable, Comparable<QoS>
```
public enum QoS
extends Enum<QoS>
```
Denotes the QoS level (in Hono's terms) with which a message was sent by the device.

Enum Constant Summary

Enum Constants
Enum Constant Description

AT_LEAST_ONCE

AT_MOST_ONCE

UNKNOWN
Indicates that the device set a QoS level which is not known or supported.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static QoS`	`valueOf(String name)`	Returns the enum constant of this type with the specified name.
`static QoS[]`	`values()`	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum
clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

- Enum Constant Detail
  - AT_MOST_ONCE
```
public static final QoS AT_MOST_ONCE
```
  - AT_LEAST_ONCE
```
public static final QoS AT_LEAST_ONCE
```
  - UNKNOWN
```
public static final QoS UNKNOWN
```
    Indicates that the device set a QoS level which is not known or supported.
- Method Detail
  - values
```
public static QoS[] 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 (QoS c : QoS.values()) System.out.println(c);
    Returns:
    
    an array containing the constants of this enum type, in the order they are declared
  - valueOf
```
public static QoS 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