寻找简单的Java内存缓存 [英] Looking for simple Java in-memory cache

问题描述

我正在寻找一个简单的Java内存缓存，它具有良好的并发性（因此LinkedHashMap不够好），并且可以定期序列化到磁盘。

I'm looking for a simple Java in-memory cache that has good concurrency (so LinkedHashMap isn't good enough), and which can be serialized to disk periodically.

我需要的一个功能，但事实证明很难找到，是一种窥视对象的方法。我的意思是从缓存中检索一个对象，而不会导致缓存比其他方式更长时间地保留对象。

One feature I need, but which has proved hard to find, is a way to "peek" at an object. By this I mean retrieve an object from the cache without causing the cache to hold on to the object any longer than it otherwise would have.

更新：我忽略的另一个要求是我需要能够就地修改缓存的对象（它们包含浮点数组）。

Update: An additional requirement I neglected to mention is that I need to be able to modify the cached objects (they contain float arrays) in-place.

任何人都可以提供任何建议？

Can anyone provide any recommendations?

推荐答案

由于最初询问此问题， Google的Guava库现在包含一个功能强大且灵活的缓存。我建议使用它。

Since this question was originally asked, Google's Guava library now includes a powerful and flexible cache. I would recommend using this.

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