[infinispan-dev] Query and dynamic discovery of types

[Sanne Grinovero]

On 20 September 2013 11:19, Mircea Markus <mmarkus at redhat.com> wrote:
> Thanks for the heads up!
>
> It's not clear for me what the functional impact of ISPN-2143 is: incomplete query results?

yes

>
> On Sep 19, 2013, at 11:42 AM, Sanne Grinovero <sanne at infinispan.org> wrote:
>
>> For Infinispan 6.0 we decided that the following issue is a bloker:
>>
>> https://issues.jboss.org/browse/ISPN-2143 - Improve how different
>> indexed caches sync up on new indexed types
>>
>> It really is important, and I'm a bit concerned that it was moved to
>> CR1 as it might not be trivial: for embedded query it needs to store a
>> reference to class definitions (potentially with classloader
>> information too), and for remote queries it needs to distribute the
>> indexing configuration schema.
>>
>> Also I'm wondering if we shouldn't go even further: in Hibernate
>> Search the internal complexity of handling newly appearing types
>> (rather than statically configured types) is very hard.
>>
>> In the next version we might need to drop this, so it would be great
>> if we could stabilize the Infinispan Query API right now in such a way
>> that it won't need this feature anymore.
>>
>> I proposed it years ago but it was rejected because of usability
>> concerns.. would you still reject the idea to simply list the indexed
>> types at configuration time? If so, I think we need to explore
>> alternative solutions.
>>
>> Note that I only want to remove the dependency to dynamic _Class_
>> definitions being added at runtime; we will still support dynamically
>> defined types so in case you need extreme flexibility like with remote
>> queries that will work, as long as you provide a smart bridge able to
>> reconfigure itself based on the dynamic metadata; I think that's a
>> cleaner approach as you would be directly in control of it rather than
>> having to workaround a design which was thought for a different
>> purpose.
>>
>> Sanne
>> _______________________________________________
>> infinispan-dev mailing list
>> infinispan-dev at lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/infinispan-dev
>
> Cheers,
> --
> Mircea Markus
> Infinispan lead (www.infinispan.org)
>
>
>
>
>
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