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From Simone Tripodi <simonetrip...@apache.org>
Subject Re: [jira] [Commented] (DIRECTMEMORY-60) EHCache Integration
Date Sun, 26 Feb 2012 22:32:03 GMT
ConcurrentHashMap doesn’t shield from “data races”. It just keeps the
HashMap data structure thread safe

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On Sun, Feb 26, 2012 at 11:01 PM, Michael André Pearce
<michael.andre.pearce@me.com> wrote:
> Its as safe as doing a containsKey on ConcurrentHashMap and then doing an operation.
>
>
> On 26 Feb 2012, at 21:53, Simone Tripodi wrote:
>
>> that's not what I said, what I'm saying is that *in DM*, given the
>> actual implementation, would be wrong - other cache solutions maybe
>> have smarter keys management.
>>
>> just for the record: Memcached is one of the production ready cache
>> solution that doesn't have a method for checking a key exists in the
>> storage <http://code.sixapart.com/svn/memcached/trunk/server/doc/protocol.txt>
>

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