org.apache.flink.runtime.operators.shipping

枚举 ShipStrategyType

java.lang.Object

java.lang.Enum<ShipStrategyType>

org.apache.flink.runtime.operators.shipping.ShipStrategyType

所有已实现的接口:

Serializable, Comparable<ShipStrategyType>

public enum ShipStrategyType
extends Enum<ShipStrategyType>

Enumeration defining the different shipping types of the output, such as local forward, re-partitioning by hash, or re-partitioning by range.

枚举常量概要

枚举常量

枚举常量和说明
BROADCAST Replicating the data set to all instances.
FORWARD Forwarding the data locally in memory.
NONE Constant used as an indicator for an unassigned ship strategy.
PARTITION_CUSTOM Partitioning using a custom partitioner.
PARTITION_FORCED_REBALANCE Partitioning the data evenly, forced at a specific location (cannot be pushed down by optimizer).
PARTITION_HASH Repartitioning the data deterministically through a hash function.
PARTITION_RANDOM Repartitioning the data randomly, typically when the parallelism between two nodes changes.
PARTITION_RANGE Partitioning the data in ranges according to a total order.

方法概要

限定符和类型	方法和说明
boolean	isNetworkStrategy()
boolean	requiresComparator()
static ShipStrategyType	valueOf(String name) 返回带有指定名称的该类型的枚举常量。
static ShipStrategyType[]	values() 按照声明该枚举类型的常量的顺序, 返回 包含这些常量的数组。

从类继承的方法 java.lang.Enum

clone, compareTo, 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

NONE

public static final ShipStrategyType NONE

Constant used as an indicator for an unassigned ship strategy.

FORWARD

public static final ShipStrategyType FORWARD

Forwarding the data locally in memory.

PARTITION_RANDOM

public static final ShipStrategyType PARTITION_RANDOM

Repartitioning the data randomly, typically when the parallelism between two nodes changes.

PARTITION_HASH

public static final ShipStrategyType PARTITION_HASH

Repartitioning the data deterministically through a hash function.

PARTITION_RANGE

public static final ShipStrategyType PARTITION_RANGE

Partitioning the data in ranges according to a total order.

PARTITION_FORCED_REBALANCE

public static final ShipStrategyType PARTITION_FORCED_REBALANCE

Partitioning the data evenly, forced at a specific location (cannot be pushed down by optimizer).

BROADCAST

public static final ShipStrategyType BROADCAST

Replicating the data set to all instances.

PARTITION_CUSTOM

public static final ShipStrategyType PARTITION_CUSTOM

Partitioning using a custom partitioner.

方法详细资料

values

public static ShipStrategyType[] values()

按照声明该枚举类型的常量的顺序, 返回 包含这些常量的数组。该方法可用于迭代 常量, 如下所示:

for (ShipStrategyType c : ShipStrategyType.values())
    System.out.println(c);

返回:

按照声明该枚举类型的常量的顺序返回的包含这些常量的数组

valueOf

public static ShipStrategyType valueOf(String name)

返回带有指定名称的该类型的枚举常量。 字符串必须与用于声明该类型的枚举常量的 标识符完全匹配。(不允许有多余 的空格字符。)

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 - 如果该枚举类型没有带有指定名称的常量

NullPointerException - 如果参数为空值

isNetworkStrategy

public boolean isNetworkStrategy()

requiresComparator

public boolean requiresComparator()