Package org.osgi.util.pushstream
Enum Class QueuePolicyOption
- All Implemented Interfaces:
Serializable
,Comparable<QueuePolicyOption>
,Constable
QueuePolicyOption
provides a standard set of simple
QueuePolicy
implementations.- See Also:
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Nested Class Summary
Nested classes/interfaces inherited from class java.lang.Enum
Enum.EnumDesc<E extends Enum<E>>
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Enum Constant Summary
Enum ConstantDescriptionAttempt to add the supplied event to the queue, blocking until the enqueue is successful.Attempt to add the supplied event to the queue.Attempt to add the supplied event to the queue, throwing an exception if the queue is full. -
Method Summary
Modifier and TypeMethodDescriptionabstract <T,
U extends BlockingQueue<PushEvent<? extends T>>>
QueuePolicy<T,U> static QueuePolicyOption
Returns the enum constant of this class with the specified name.static QueuePolicyOption[]
values()
Returns an array containing the constants of this enum class, in the order they are declared.
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Enum Constant Details
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DISCARD_OLDEST
Attempt to add the supplied event to the queue. If the queue is unable to immediately accept the value then discard the value at the head of the queue and try again. Repeat this process until the event is enqueued. -
BLOCK
Attempt to add the supplied event to the queue, blocking until the enqueue is successful. -
FAIL
Attempt to add the supplied event to the queue, throwing an exception if the queue is full.
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Method Details
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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
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valueOf
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 nameNullPointerException
- if the argument is null
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getPolicy
- Returns:
- a
QueuePolicy
implementation
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