Support for view of the entries stored in this cache

[hikumar]

There is no support for view of the entries stored in this cache, though GCache provide asMap for the same. It will be help full in few use cases.
Is there any specific reason for not providing it?

[cb372]

One reason for not providing this is that it's not possible with memcached, unless you use a big hack.

Adding this feature should be very trivial for all other implementations, and we could have a look at implementing the hack for memcached.