Forget about key collision, obviously there is no collisions fro a
non-hash functions.
On 7 June 2011 02:43, Maurizio Cucchiara wrote:
> Simone,
>
>> a look at put( Class key, T value )[1] implementation of
>
> Aside that put method is public, IIUC the only class that calls "put"
> is only the Og
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Simone,
> a look at put( Class key, T value )[1] implementation of
Aside that put method is public, IIUC the only class that calls "put"
is only the OgnlRuntime one (and almost every time it invokes inside
a sync block).
> ClassCacheImpl: the whole block should be controlled by a concurrency
> p
On 6 June 2011 22:47, Jörg Schaible wrote:
> sebb wrote:
>
>> On 6 June 2011 09:24, Gump wrote:
>>> To whom it may engage...
>>>
>>> This is an automated request, but not an unsolicited one. For
>>> more information please visit http://gump.apache.org/nagged.html,
>>> and/or contact the folk at g
sebb wrote:
> On 6 June 2011 09:24, Gump wrote:
>> To whom it may engage...
>>
>> This is an automated request, but not an unsolicited one. For
>> more information please visit http://gump.apache.org/nagged.html,
>> and/or contact the folk at gene...@gump.apache.org.
>>
>> Project commons-lang3 h
Jason, you're right there is one OGNL context per request in struts,
but at the time that the OGNL code was written, concurrency was taken
into account, so at this point I think we don't have other choice
(there could be other projects that rely on the OGNL thread-safety).
On 6 June 2011 18:24, Ja
> -Original Message-
> From: maurizio.cucchi...@gmail.com
> [mailto:maurizio.cucchi...@gmail.com] On Behalf Of Maurizio Cucchiara
> Sent: Monday, June 06, 2011 12:14
> To: Commons Developers List
> Subject: Re: [ognl] internal cache performance improvement
>
> Gary hit the nail on the hea
Gary hit the nail on the head, considering that OGNL usually runs in a
multi-thread environment like struts, concurrency is a must.
At first glance LRUMap would seem the appropriate choice (it was
thought for this purpose), unfortunately LRUMap is not thread safe,
surely we can wrap using Collectio
Does concurrency need to be taken into account for the cache? If so, you
need to consider how access to the cache will be synchronized. An intrinsic
lock? A ConcurrentHashMap? and so on.
Gary
On Mon, Jun 6, 2011 at 2:36 AM, Simone Tripodi wrote:
> Hi all OGNL folks,
> my today's topic is about i
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On 6 June 2011 09:24, Gump wrote:
> To whom it may engage...
>
> This is an automated request, but not an unsolicited one. For
> more information please visit http://gump.apache.org/nagged.html,
> and/or contact the folk at gene...@gump.apache.org.
>
> Project commons-lang3 has an issue affecting
2011/6/6 Simone Tripodi
> TreeMap sounds reasonable, it's an RB Tree implementation and
> insert/retrieve operations have both O(log n) complexity[1], I'd
> suggest to start with it and see how things are going, then switch to
> LRU if needed.
> WDYT? Many thanks in advance!
>
+1, TreeMap is fin
Hi Antonio,
thanks for reviewing and providing feedbacks!
In the existing codebase I don't see any eviction policy, I wonder if
that data structure purpose is not for storing large amount of data,
but rather just a memory area where quickly looking-up already
processed Class related data - I know t
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On 6/5/11 7:32 PM, Phil Steitz wrote:
> The AbandonedObjectPool test case that I just commented out in
> [dbcp] trunk is failing because GOP getNumActive returns -1. My
> first thought was that this is a timing issue due to lack of
> synchronization in invalidate and general non-protection of
> _a
2011/6/6 Simone Tripodi
> my today's topic is about internal cache, that can be IMHO improved in
> therms of performance; its implementation is a multi-value map alike,
> based on a fixed-size array, a function is applied to each key to
> calculate the array index, each array element is a Collect
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