Is there a Java library to cache files? [closed]

Question

Is there are java library that will cache files to memory and disk? Basically, I would like the library to cache the file to memory. However, if the in memory cache gets larger than a certain threshhold, some of the files should be written to disk.

Is there any Java library that will do this?

Grae

Update:

Just a couple general comment.

I am only going to using these files once. They are just temp files. In a perfect world, I would keep them all in memory. However, I think I would run out of memory. What I guess I am really looking for is some sort of paging system. That can keep me form running out of memory, but also allow me to avoid writting everyhting to disk.

Answer 1

Sure, try Terracotta or EhCache. Or Google for "java cache" and pick something else.