[infinispan-dev] requirements for the new CacheStore API

[Galder Zamarreño]

On Jul 24, 2013, at 12:55 PM, Mircea Markus <mmarkus at redhat.com> wrote:

> Hi,
> 
> Starting from the original document Manik rolled out a while ago [1], here's the list of requirements I'm currently aware of in the context of the new CacheStore API:
> - better integration with the fluent API (CacheStore.init() is horrendous) 
> - support for non-distributed transaction cache stores (1PC) and support for XA capable cache store
> - support iteration over all the keys/entries in the store
>  - needed for efficient Map/Reduce integration
>  - needed for efficient implementation of Cache.keySet(), Cache.entrySet(), Cache.values() methods
> - a simple read(k) + write(k,v) interface to be implemented by users that just want to position ISPN as a cache between an app and a legacy system and which don't need/want to be bothered with all the other complex features
> - support for expiration notification (ISPN-3064)
> - support for size (efficient implementation of the cache.size() method)
> 
> Re: JSR-107 integration, I don't think we should depend on the JSR-107 API as it forces us to use JSR-107 internal structures[2] but we should at least provide an adapter layer.

I agree on not depending on it, but design it in such way that's easy to write such adapter. IOW, make sure the functionality in the JSR-107 API is covered easily, without having add boiler-plate code :)

> 
> [1] https://community.jboss.org/wiki/CacheLoaderAndCacheStoreSPIRedesign
> [2] https://github.com/jsr107/jsr107spec/blob/v0.8/src/main/java/javax/cache/integration/CacheWriter.java#L59
> 
> Cheers,
> -- 
> Mircea Markus
> Infinispan lead (www.infinispan.org)
> 
> 
> 
> 
> 
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--
Galder Zamarreño
galder at redhat.com
twitter.com/galderz

Project Lead, Escalante
http://escalante.io

Engineer, Infinispan
http://infinispan.org