Cache and alwaysRefresh

[John Arevalo]

Hi all,

I'm developing a frontend for AS400 app, this one has around 1200
users making CRUD by console. In EclipseLink wiki[1] doesn't recommend
disable cache[2], but in this case, cache will be useless because an
external app is updating data continuously. Do you have a suggestion
to manage consistant cache?

[1] http://wiki.eclipse.org/Using_EclipseLink_JPA_Extensions_%28ELUG%29#How_to_Use_the_.40Cache_Annotation
[2] <property name="eclipselink.cache.type.default " value="NONE"/>

Best regards,

--
John Arévalo
GNU/Linux User #443701
http://counter.li.org/
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[James Sutherland]

To disable the cache you should use the persistence property "eclipselink.cache.shared.default"="false".  The cache type NONE option, is not recommended as it removes the cache entirely, not just the shared cache, so can have issues.

Edilson-2 wrote:

Hi all,

I'm developing a frontend for AS400 app, this one has around 1200
users making CRUD by console. In EclipseLink wiki[1] doesn't recommend
disable cache[2], but in this case, cache will be useless because an
external app is updating data continuously. Do you have a suggestion
to manage consistant cache?

[1] http://wiki.eclipse.org/Using_EclipseLink_JPA_Extensions_%28ELUG%29#How_to_Use_the_.40Cache_Annotation
[2] <property name="eclipselink.cache.type.default " value="NONE"/>

Best regards,

--
John Arévalo
GNU/Linux User #443701
http://counter.li.org/

[John Arevalo]

On Tue, Jul 14, 2009 at 10:33 AM, James Sutherland <jamesssss@...> wrote:

To disable the cache you should use the persistence property
"eclipselink.cache.shared.default"="false".  The cache type NONE option, is
not recommended as it removes the cache entirely, not just the shared cache,
so can have issues.

Edilson-2 wrote:
>
> Hi all,
>
> I'm developing a frontend for AS400 app, this one has around 1200
> users making CRUD by console. In EclipseLink wiki[1] doesn't recommend
> disable cache[2], but in this case, cache will be useless because an
> external app is updating data continuously. Do you have a suggestion
> to manage consistant cache?
>
> [1]
> http://wiki.eclipse.org/Using_EclipseLink_JPA_Extensions_%28ELUG%29#How_to_Use_the_.40Cache_Annotation
> [2] <property name="eclipselink.cache.type.default " value="NONE"/>
>
> Best regards,
>
> --
> John Arévalo
> GNU/Linux User #443701
> http://counter.li.org/
>
>

-----
http://wiki.eclipse.org/User:James.sutherland.oracle.com James Sutherland
http://www.eclipse.org/eclipselink/
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Thanks James.

Now cache has been disabled. For anyone, if you put this property in persistence.xml all your @Entity class shouldn't have @Cache annotation... i had that problem :)

Best Regards,
--
John Arévalo
GNU/Linux User #443701
http://counter.li.org/

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