Hazelcast (https://hazelcast.org/) works 'out of the box' as a JSR-170
javax.cache implementation. No config file expected.
I have:
isis.persistor.datanucleus.impl.datanucleus.cache.level2.type=javax.cache
isis.persistor.datanucleus.impl.datanucleus.cache.level2.mode=UNSPECIFIED
isis.persistor.datanucleus.cache.level2.cacheName=myCache
Then added the following dependencies:
<dependency>
<groupId>javax.cache</groupId>
<artifactId>cache-api</artifactId>
<version>1.0.0</version>
</dependency>
<dependency>
<groupId>com.hazelcast</groupId>
<artifactId>hazelcast</artifactId>
<version>3.7.3</version>
</dependency>
It seems to make quite a significant difference to the speed of the app.
but I should be measuring that to make any claims.
On Thu, Dec 8, 2016 at 8:35 PM, Stephen Cameron <steve.cameron...@gmail.com>
wrote:
> Thanks Andy, sorry for my astounding naïveté.
>
> I see now there is a page where JSR-107 implementations are listed:
> https://jcp.org/aboutJava/communityprocess/implementations/jsr107/index.
> html
>
> 7.5 Billion people in the world and only one person working on
> DataNucleus, why?!
>
>
>
> On Thu, Dec 8, 2016 at 6:06 PM, Andy Jefferson <a...@datanucleus.org>
> wrote:
>
>> > Caused by: org.datanucleus.exceptions.NucleusException: Error creating
>> > cache
>> > at
>> > org.datanucleus.cache.JavaxCacheLevel2Cache.<init>(
>> > JavaxCacheLevel2Cache.java:98)
>>
>> You did not put a Javax.cache provider in your CLASSPATH. As Oscar
>> suggested.
>>
>> DataNucleus provides "a simple wrapper to javax.cache's caches". So you
>> need to select an implementation of javax.cache (just like DataNucleus is
>> an implementation of javax.jdo, so you need to select your preferred
>> implementation of javax.cache). EHCache has one IIRC.
>>
>> You didn't really expect DataNucleus to implement its own javax.cache
>> implementation as well as its own JDO implementation as well as its own JPA
>> implementation, etc? All with 1 developer?!
>>
>>
>> Regards
>> --
>> Andy
>> DataNucleus (Web: http://www.datanucleus.org Twitter: @datanucleus)
>>
>
>
