避免使用三元数违反DRY? [英] Avoid violation of DRY with ternary?

问题描述

这就是我所拥有的.

Map data = new HashMap<>(); // assume this has been populated

public int getLastestVersion() {
    // data.get("PATH_TO_DESIRED_POINT") would be an integer
    return data.get("PATH_TO_DESIRED_POINT") == null ? 0 : (int)data.get("PATH_TO_DESIRED_POINT");
}

我正在尝试避免违反DRY，但是我希望能够保持三元组的简单性.有什么我可以做的吗?

I'm trying to avoid violating DRY, but I want to be able to keep the simplicity of the ternary. Is there something I can do?

推荐答案

如果您使用的是Java8，则可以使用

If you are using Java8, you can use getOrDefault method:

return data.getOrDefault("PATH_TO_DESIRED_POINT", 0);

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