public enum PreJoin extends Enum<PreJoin>
public static PreJoin[] values()
for (PreJoin c : PreJoin.values()) System.out.println(c);
public static PreJoin 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 © 2018. All rights reserved.