org.apache.flink.table.planner.plan

枚举 PartialFinalType

java.lang.Object

java.lang.Enum<PartialFinalType>

org.apache.flink.table.planner.plan.PartialFinalType

所有已实现的接口:

Serializable, Comparable<PartialFinalType>

public enum PartialFinalType
extends Enum<PartialFinalType>

Enumerations for partial final aggregate types.

另请参阅:

SplitAggregateRule

枚举常量概要

枚举常量

枚举常量和说明
FINAL final aggregate type represents final-aggregation, which produces final result based on the partially distinct aggregated result.
NONE the aggregate which has not been split.
PARTIAL partial aggregate type represents partial-aggregation, which produces a partial distinct aggregated result based on group key and bucket number.

方法概要

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

PARTIAL

public static final PartialFinalType PARTIAL

partial aggregate type represents partial-aggregation, which produces a partial distinct aggregated result based on group key and bucket number.

FINAL

public static final PartialFinalType FINAL

final aggregate type represents final-aggregation, which produces final result based on the partially distinct aggregated result.

NONE

public static final PartialFinalType NONE

the aggregate which has not been split.

方法详细资料

values

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