Performance: Investigate use of JSR 107: JCache - Java Temporary Caching API

[pdurbin]

"With twelve characters, you've just sped up the system by orders of magnitude."

-- @smillidge Supercharging Java EE applications with JCache, Speaker: Steve Millidge https://www.youtube.com/watch?v=FscLn-9crfE#t=12m21s

Those twelve characters are @CacheResult

He adds them to the getOrdersForCustomer method of https://github.com/smillidge/JCacheWebinar/blob/master/PizzaConnector/src/main/java/fish/payara/examples/jcache/pizzaconnector/PizzaStoreConnector.java

@CacheResult comes from import javax.cache.annotation.CacheResult - https://github.com/jsr107/jsr107spec/blob/master/src/main/java/javax/cache/annotation/CacheResult.java

JCache is a new (March 2014) standard: JSR 107: JCACHE - Java Temporary Caching API: https://jcp.org/en/jsr/detail?id=107

At https://blogs.oracle.com/theaquarium/entry/jcache_is_final_i_repeat Oracle indicated that many Java EE users would like to see JCache be added to the Java EE standard.

Back to the talk (which I found at http://www.payara.co.uk/payara_is_speaking_at_jdays_2015 ), here is where getOrdersForCustomer is called in the demo:

https://github.com/smillidge/JCacheWebinar/blob/master/HazelcastWebinar/src/main/java/fish/payara/examples/jcache/rest/CustomerOrdersResource.java

A slide from http://www.slideshare.net/Hazelcast/payara-hazelcast-webinar below

[smillidge]

These docs let you know how to enable Hazelcast (JSR107) in Payara https://github.com/payara/Payara/wiki/Hazelcast-%28Payara-4.1.151%29

Happy to help if you use Payara

[pdurbin]

I've been told that this version has better audio: https://www.youtube.com/watch?v=RIl8Fekqtwk

@smillidge thanks for the offer! Great presentation!

[pdurbin]

I still think that JCache is an interesting technology and that JSR 107 is an interesting spec, but I guess I'm the only one in the Dataverse community who thinks so. I'm closing this issue but I'm happy to open it up again if someone wants to play around with this technology with me.

[pdurbin]

I'm just copying over a comment by @matthew-a-dunlap over at #4527 (comment)

"I finally got back to this today. After digging into jCache and implementations via ehcache/HazelCache, as far as I can tell they require deployment of an external application to handle caching. Payara bundles HazelCache out of the box but for glassfish does not.

I tried digging deeper into HazelCache anyways because it has the most complete/current documentation. Reading over documentation here I tried following along with the GlassFish v3 section and deploying hazelcast-jca-rar to autodeploy but it spit out a file saying the application deployed in failure.

Stepping back I'm unsure if we want another external application dependency alongside Dataverse. There is a fair chance I'm misunderstanding the ways in which this caching can be set up, but I'm over my head in terms of GlassFish server knowledge."