org.apache.flink.streaming.api.transformations

枚举 StreamExchangeMode

java.lang.Object

java.lang.Enum<StreamExchangeMode>

org.apache.flink.streaming.api.transformations.StreamExchangeMode

所有已实现的接口:

Serializable, Comparable<StreamExchangeMode>

@Internal
public enum StreamExchangeMode
extends Enum<StreamExchangeMode>

The data exchange mode between operators during StreamGraph generation.

枚举常量概要

枚举常量

枚举常量和说明
BATCH The producer first produces its entire result and finishes.
PIPELINED Producer and consumer are online at the same time.
UNDEFINED The exchange mode is undefined.

方法概要

限定符和类型	方法和说明
static StreamExchangeMode	valueOf(String name) 返回带有指定名称的该类型的枚举常量。
static StreamExchangeMode[]	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

PIPELINED

public static final StreamExchangeMode PIPELINED

Producer and consumer are online at the same time. Produced data is received by consumer immediately.

BATCH

public static final StreamExchangeMode BATCH

The producer first produces its entire result and finishes. After that, the consumer is started and may consume the data.

UNDEFINED

public static final StreamExchangeMode UNDEFINED

The exchange mode is undefined. It leaves it up to the framework to decide the exchange mode. The framework will pick one of BATCH or PIPELINED in the end.

方法详细资料

values

public static StreamExchangeMode[] 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 (StreamExchangeMode c : StreamExchangeMode.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 StreamExchangeMode 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