规则枚举

一些简单的猜想实现，用来去除ifelse或者switch，虽然在jdk17中已经引入了新的switch语法，但是还是想做一些尝试

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package com.tthk.inland.ticket.core.enums.czloworder;

import lombok.AllArgsConstructor;
import lombok.Getter;

import java.util.Arrays;

/**
 * @author Foam
 * @Description 枚举
 * @date 2023/5/4 17:12
 */
@Getter
@AllArgsConstructor
public enum LowOrderEnums {
    UNLIMITED("枚举1"){
        @Override
        public boolean check(Integer id) {
            return id<1;
        }
    },
    ENUM2("枚举2"){
        @Override
        public boolean check(Integer id) {
            return id >= 1 && id < 3;
        }
    },
    ENUM3("枚举3"){
        @Override
        public boolean check(Integer id) {
            return id > 3;
        }
    };
    private String name;

    public abstract boolean check(Integer id);

    public static String getEnums(Integer id){
        return Arrays.stream(LowOrderEnums.values()).filter(x -> x.check(id)).findFirst().map(LowOrderEnums::getName).orElse(id+"");
    }

    public static void main(String[] args) {
        System.out.println(getEnums(1));
        System.out.println(getEnums(2));
        System.out.println(getEnums(3));
        System.out.println(getEnums(4));
    }
}

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package com.tthk.inland.ticket.core.enums.czloworder;

import lombok.AllArgsConstructor;
import lombok.Getter;

import java.util.Arrays;
import java.util.function.Predicate;

/**
 * @author Foam
 * @Description 枚举
 * @date 2023/5/4 17:12
 */
@Getter
@AllArgsConstructor
public enum LowOrderEnums {
    UNLIMITED(x -> x < 1,"枚举1"),
    ENUM2(x -> x >= 1 && x < 3,"枚举2"),
    ENUM3(x -> x > 3,"枚举3");
    private Predicate<Integer> accumulator;

    private String name;

    public static String getEnums(Integer id){
        return Arrays.stream(LowOrderEnums.values()).filter(x -> x.getAccumulator().test(id)).findFirst().map(LowOrderEnums::getName).orElse("没匹配到");
    }

    public static void main(String[] args) {
        System.out.println(getEnums(1));
        System.out.println(getEnums(2));
        System.out.println(getEnums(3));
        System.out.println(getEnums(4));
    }
}