今天写代码看到这种写法，哪位朋友给分析一下好处？和改进方法？

Question

今天写代码看到这种写法，哪位朋友给分析一下好处？
原来的写法：

public static final String VERSION_1 = "1_native";
public static final String VERSION_2 = "2_native";
public static final String VERSION_3 = "3_native";
public static final String VERSION_4 = "native_202207";
      ...
      if (VERSION_1.equals(version) || 
          VERSION_2.equals(version) || 
          VERSION_3.equals(version) ||
          VERSION_4.equals(version)){
        log.debug("Call " + version +" begin, senderId is " + cmd.getSenderID());
        handleNative(很多参数);
        return;
      ....

改了的写法：

public enum VersionEnum {
    VERSION_1("1_native"),
    VERSION_2("2_native"),
    VERSION_3("3_native"),
    VERSION_4("native_202207"),

    private String version;

    VersionEnum( String version) {
        this.version = version;
    }
    public String getVersion() {
        return version;
    }
}

...
VersionEnum versionEnum = VersionEnum.valueOf(version);
 switch (versionEnum) {
        case VERSION_1:
        case VERSION_2:
        case VERSION_3:
        case native_202207:
          log.debug("Call " + version +" begin, senderId is " + cmd.getSenderID());
          handleNative(很多参数);
          return;
      }
...

还可以怎么改进？

Answer 1

public enum VersionEnum {
    VERSION_1("1_native"),
    VERSION_2("2_native"),
    VERSION_3("3_native"),
    VERSION_4("native_202207"),;
 
    private String version;
 
    VersionEnum( String version) {
        this.version = version;
    }
    public String getVersion() {
        return version;
    }

    /**
     *  匹配
     * @return
     */
    public static boolean match(String version){
       return Arrays.stream(values()).anyMatch(versionEnum -> versionEnum.getVersion().equals(version));
    }

   
}

  if (VersionEnum.match(version)){
            log.debug("Call " + version +" begin, senderId is " + cmd.getSenderID());
            handleNative(很多参数);

        }