Getting all the keys in a cache

[Ognen Duzlevski]

Hello,

I am looking at the
https://ignite.incubator.apache.org/releases/1.0.0/javadoc/ page and I
cannot find a method to just get all the keys in a particular cache. All
the get() methods require a known key or a set of known keys. What if I
have one app that is filling up the cache and another one that is
inspecting the same cache periodically for key/value changes?

Thanks!