org.apache.flink.streaming.api.graph

枚举 StreamConfig.InputRequirement

java.lang.Object

java.lang.Enum<StreamConfig.InputRequirement>

org.apache.flink.streaming.api.graph.StreamConfig.InputRequirement

所有已实现的接口:

Serializable, Comparable<StreamConfig.InputRequirement>

封闭类:

StreamConfig

public static enum StreamConfig.InputRequirement
extends Enum<StreamConfig.InputRequirement>

Requirements of the different inputs of an operator. Each input can have a different requirement. For all SORTED inputs, records are sorted/grouped by key and all records of a given key are passed to the operator consecutively before moving on to the next group.

枚举常量概要

枚举常量

枚举常量和说明
PASS_THROUGH Records from PASS_THROUGH inputs are passed to the operator before passing any records from SORTED inputs.
SORTED Records from all sorted inputs are grouped (sorted) by key and are then fed to the operator one group at a time.

方法概要

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

SORTED

public static final StreamConfig.InputRequirement SORTED

Records from all sorted inputs are grouped (sorted) by key and are then fed to the operator one group at a time. This "zig-zags" between different inputs if records for the same key arrive on multiple inputs to ensure that the operator sees all records with a key as one consecutive group.

PASS_THROUGH

public static final StreamConfig.InputRequirement PASS_THROUGH

Records from PASS_THROUGH inputs are passed to the operator before passing any records from SORTED inputs. There are no guarantees on ordering between and within the different PASS_THROUGH inputs.

方法详细资料

values

public static StreamConfig.InputRequirement[] 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 (StreamConfig.InputRequirement c : StreamConfig.InputRequirement.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 StreamConfig.InputRequirement 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