net.sf.xenqtt.message
Enum QoS
java.lang.Object
java.lang.Enum<QoS>
net.sf.xenqtt.message.QoS
- All Implemented Interfaces:
- Serializable, Comparable<QoS>
public enum QoS
- extends Enum<QoS>
QoS is the quality of service which determines the assurance of message delivery. The order in this enum is important as the ordinal is used as the numeric
value of the QoS in the message. QOS 2, exactly once delivery, is not supported.
Method Summary |
static QoS |
lookup(int value)
|
int |
value()
|
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. |
AT_MOST_ONCE
public static final QoS AT_MOST_ONCE
AT_LEAST_ONCE
public static final QoS AT_LEAST_ONCE
EXACTLY_ONCE
public static final QoS EXACTLY_ONCE
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
lookup
public static QoS lookup(int value)
- Returns:
- The
QoS
for the specified numeric value.
value
public int value()
- Returns:
- The numeric value for this
Qos
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