[infinispan-issues] [JBoss JIRA] (ISPN-7224) Support synchronous get in Spring's cache abstraction

[Stéphane Nicoll (JIRA)]

    [ https://issues.jboss.org/browse/ISPN-7224?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13388270#comment-13388270 ] 

Stéphane Nicoll commented on ISPN-7224:
---------------------------------------

What Mike said. 

Sebastian, do you seriously expecting us to lock in a smart way in an abstraction while stating at the same time you can't knowing what is actually happening behind the scenes? I mean, the purpose of that separate method (and contract) is to give a chance for cache implementations to do the right thing. I think that's pretty obvious we can't do that with our abstraction.

That extra method is also only called when the sync flag is true and we ask [users to refer to the doc of the cache provider for more details|http://docs.spring.io/spring-framework/docs/current/spring-framework-reference/htmlsingle/#cache-annotations-cacheable-synchronized]. Whatever you decide to do should probably be explicitly documented. 

Thanks!

> Support synchronous get in Spring's cache abstraction
> -----------------------------------------------------
>
>                 Key: ISPN-7224
>                 URL: https://issues.jboss.org/browse/ISPN-7224
>             Project: Infinispan
>          Issue Type: Feature Request
>          Components: Spring Integration
>            Reporter: Stéphane Nicoll
>            Assignee: Sebastian Łaskawiec
>            Priority: Critical
>             Fix For: 9.0.0.Beta1, 9.0.0.Final
>
>
> Spring Framework 4.3 has introduced a read-through option See https://jira.spring.io/browse/SPR-9254 for more details. In practice this would require you to compile against 4.3 and implement the additional method. 
> The code is meant to be backward compatible with previous version, as long as you're guarding the new exception in an inner class, see [this implementation for an example|https://github.com/hazelcast/hazelcast/blob/37ba79c4a8d35617c5f6a770eec3705f2852f938/hazelcast-spring/src/main/java/com/hazelcast/spring/cache/HazelcastCache.java#L162-L168]
> Let me know if I can help.



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