public enum AggregationType extends Enum<AggregationType>
| 限定符和类型 | 方法和说明 |
|---|---|
static boolean |
isAggregationType(String aggregationType)
Is aggregation type.
|
static AggregationType |
valueOf(String name)
返回带有指定名称的该类型的枚举常量。
|
static AggregationType[] |
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。
|
public static final AggregationType MAX
public static final AggregationType MIN
public static final AggregationType SUM
public static final AggregationType COUNT
public static final AggregationType AVG
public static AggregationType[] values()
for (AggregationType c : AggregationType.values()) System.out.println(c);
public static AggregationType valueOf(String name)
name - 要返回的枚举常量的名称。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public static boolean isAggregationType(String aggregationType)
aggregationType - aggregation typeCopyright © 2020 The Apache Software Foundation. All rights reserved.