Module me.ahoo.cosid.core

Package me.ahoo.cosid.lease

Enum Class AcquireReason

java.lang.Object

java.lang.Enum<AcquireReason>

me.ahoo.cosid.lease.AcquireReason

All Implemented Interfaces:

Serializable, Comparable<AcquireReason>, Constable

public enum AcquireReason
extends Enum<AcquireReason>

Which step of the slot choice (05-machine-lease.md §2.1) gave the slot; the store reports it, for observation only.

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
IDEMPOTENT	The owner, same key and incarnation, already held the slot: a retried acquire.
LOWEST	The lowest free slot.
PREFERRED	The free preferred slot.
STICKY	The free slot the owner key held last.

Method Summary

Modifier and Type	Method	Description
String	label()	The name the listener events use (idempotent, preferred, sticky, lowest).
static AcquireReason	valueOf(String name)	Returns the enum constant of this class with the specified name.
static AcquireReason[]	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

IDEMPOTENT

public static final AcquireReason IDEMPOTENT

The owner, same key and incarnation, already held the slot: a retried acquire.

PREFERRED

public static final AcquireReason PREFERRED

The free preferred slot.

STICKY

public static final AcquireReason STICKY

The free slot the owner key held last.

LOWEST

public static final AcquireReason LOWEST

The lowest free slot.

Method Details

values

public static AcquireReason[] 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 AcquireReason 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

label

public String label()

The name the listener events use (idempotent, preferred, sticky, lowest).

Returns:

the lower case name