public enum AggregateType extends Enum<AggregateType>
public static final AggregateType None
public static final AggregateType Sum
public static final AggregateType Max
public static final AggregateType Last
public static AggregateType[] values()
for (AggregateType c : AggregateType.values()) System.out.println(c);
public static AggregateType 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Copyright © 2013–2016 Alibaba Group. All rights reserved.