程序包 org.apache.pulsar.common.policies.data

Enum Class BacklogQuota.RetentionPolicy

java.lang.Object

java.lang.Enum<BacklogQuota.RetentionPolicy>

org.apache.pulsar.common.policies.data.BacklogQuota.RetentionPolicy

所有已实现的接口:

Serializable, Comparable<BacklogQuota.RetentionPolicy>, Constable

封闭接口:

BacklogQuota

public static enum BacklogQuota.RetentionPolicy
extends Enum<BacklogQuota.RetentionPolicy>

Enumeration type determines how to retain backlog against the resource shortages.

嵌套类概要

从类继承的嵌套类/接口 java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

枚举常量概要

枚举常量

枚举常量	说明
consumer_backlog_eviction	Policy which evicts the oldest message from the slowest consumer's backlog.
producer_exception	Policy which throws javax.jms.ResourceAllocationException to the producer.
producer_request_hold	Policy which holds producer's send request until the resource becomes available (or holding times out).

方法概要

修饰符和类型	方法	说明
static BacklogQuota.RetentionPolicy	valueOf(String name)	Returns the enum constant of this class with the specified name.
static BacklogQuota.RetentionPolicy[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

从类继承的方法 java.lang.Enum

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

从类继承的方法 java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

枚举常量详细资料

producer_request_hold

public static final BacklogQuota.RetentionPolicy producer_request_hold

Policy which holds producer's send request until the resource becomes available (or holding times out).

producer_exception

public static final BacklogQuota.RetentionPolicy producer_exception

Policy which throws javax.jms.ResourceAllocationException to the producer.

consumer_backlog_eviction

public static final BacklogQuota.RetentionPolicy consumer_backlog_eviction

Policy which evicts the oldest message from the slowest consumer's backlog.

方法详细资料

values

public static BacklogQuota.RetentionPolicy[] values()

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

返回:

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

valueOf

public static BacklogQuota.RetentionPolicy 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.)

参数:

name - 要返回的枚举常量的名称。

返回:

返回带有指定名称的枚举常量

抛出:

IllegalArgumentException - if this enum class has no constant with the specified name

NullPointerException - 如果参数为空值