@InterfaceAudience.Private public enum Operator extends Enum<Operator>
public static final Operator AND
public static final Operator OR
public static final Operator NOT
public static Operator[] values()
for (Operator c : Operator.values()) System.out.println(c);
public static Operator 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 © 2007–2019 The Apache Software Foundation. All rights reserved.