类似 Gmail 的标签系统
我正在研究多种方法来实施类似于 Gmail 中的标签系统。基本上我有一个最低级别的资源，我想以标签的形式为该资源提供许多组织分组。如果有人实施过类似的事情，我想听听您的意见。我的想法是在 Resource 实例中有一个 List。我需要有一个有效的机制，以便根据标签或资源进行非常快速的搜索。
谢谢 季米特里斯
I am looking into a number of ways to implement a labelling system similar to the one in Gmail. Basically I have a Resource at the lowest level and I would like to provide a number of organisational groupings for that resource in the form of labels. If anyone has implemented something like that I would like to hear your views. My idea is to have within the Resource instance a List<Label>. I need to have an efficient mechanism in order to do very fast searches based on the labels or based on the resources.
Thanks
Dimitris
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不，我不会那样做。我会考虑维护两个字典，
Label -> HashSet和Resource -> HashSet<标签>。这将使您能够在两个方向上快速查找。显然你应该封装它。另外，无论您做什么，都不应该将其嵌入到您的
资源中。它是一种资源，并且正在维护其标签？不。单一责任等等。Nope, I wouldn't do that. I'd think about maintaining two dictionaries,
Label -> HashSet<Resource>andResource -> HashSet<Label>. This will give you fast lookup in both directions. Obviously you should encapsulate this.Also, whatever you do, you shouldn't embed it in your
Resource. It's a resource, and it's maintaining its labels? No. Single responsibility and all that.