> From: Emmanuel Bernard <[hidden email]>
> Date: February 23, 2011 5:37:14 PM GMT+01:00
> To: Marc Schipperheyn <[hidden email]>
> Cc: [hidden email] > Subject: Re: [hibernate-dev] Spring Cache Abstraction
> It kinda like the declarative aspect of it though there are a lot of nasty strings all around :). The rest is not really new so all old school issues apply.
> As usual for higher level caching you need to manually handle data eviction which is likely be a source of bugs.
> They also don't say if they share the same entity instance or serialize / deserialize but unless this is read-only results (ie not modifiable by the user), you'd better be careful. Likewise, make sure you have a multi-threaded implementations of the data structure returned.
> They don't seem to discuss transaction or clustering. I imagine they let the underlying cache provider do the work.
> More specifically with Hibernate, if you use such facility within a open session in view pattern, expect weirdness to happen as well as method level cached objects are not going to be managed entities:
> - not updated transparently
> - the same instance might be reattached to several session => badaboom
> A good summary of where cache could happen in an application is available here
> http://docs.jboss.org/seam/2.2.1.Final/reference/en-US/html_single/#cache >
> Due to all the potential issues, I tend to favor HTML page fragment caching:
> - it's higher up the food chain hence likely more efficient
> - many of the issues declared above don't apply (not all disappear though)
> But it's sure a useful tool for niche requirements that can live with such constraints.
> On 23 févr. 2011, at 17:04, Marc Schipperheyn wrote:
>> It would be interesting to have the Hibernate team comment/blog on the new
>> Spring Cache Abstraction functionality and how it relates to Hibernate
>> managed entities. Perhaps some strategies, etc. It's very attractive to just
>> cache entities in stead of caching entity values with the second level
>> hibernate-dev mailing list
>> [hidden email] >> https://lists.jboss.org/mailman/listinfo/hibernate-dev >
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