程序包 org.apache.seatunnel.connectors.seatunnel.kafka.config

枚举 KafkaSemantics

java.lang.Object

java.lang.Enum<KafkaSemantics>

org.apache.seatunnel.connectors.seatunnel.kafka.config.KafkaSemantics

所有已实现的接口:

Serializable, Comparable<KafkaSemantics>

public enum KafkaSemantics
extends Enum<KafkaSemantics>

枚举常量概要

枚举常量

枚举常量	说明
AT_LEAST_ONCE	At this semantics, we will retry sending the message to kafka, if the response is not ack.
EXACTLY_ONCE	AT this semantics, we will use 2pc to guarantee the message is sent to kafka exactly once.
NON	At this semantics, we will directly send the message to kafka, the data may duplicat/lost if job restart/retry or network error.

方法概要

修饰符和类型	方法	说明
static KafkaSemantics	valueOf(String name)	返回带有指定名称的该类型的枚举常量。
static KafkaSemantics[]	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

NON

public static final KafkaSemantics NON

At this semantics, we will directly send the message to kafka, the data may duplicat/lost if job restart/retry or network error.

AT_LEAST_ONCE

public static final KafkaSemantics AT_LEAST_ONCE

At this semantics, we will retry sending the message to kafka, if the response is not ack.

EXACTLY_ONCE

public static final KafkaSemantics EXACTLY_ONCE

AT this semantics, we will use 2pc to guarantee the message is sent to kafka exactly once.

方法详细资料

values

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