Re: TopLink Cluster Documentation
Thanks, Tom.
Tom Ware wrote:
> Hi Eduardo,
>
> The functionality referred to below is available in essentials.
>
> When responding to this mailing list we will definitely be quite clear
> if we ever refer to behavior that is not available in essentials.
>
> -Tom
>
> Eduardo Pelegri-Llopart wrote:
>
>> I find it a bit hard to track what is what. From the phrasing in the
>> email I thought you were describing features in the "Top Link" product
>> that are not in "TopLink Essentials", which is the component in
>> Project GlassFish. But, when I followed the link, it seems to refer
>> to the Top Link Essentials implementation.
>>
>> Can somebody clarify?
>>
>> Thanks,
>>
>> - eduard/o
>>
>> Doug Clarke wrote:
>>
>>
>>> Peter,
>>>
>>> TopLink's default caching is to cache entities in its shared cache,
>>> container within the server session. This shared cache spans entity
>>> managers and transactions.
>>>
>>> As shown in table 1-2 of Tom's second link there are two persistence
>>> unit properties of interest:
>>>
>>> toplink.cache.shared.default - the default caching used for all
>>> entity types. Setting this to false will put you in a cache per
>>> EntityManager (client session) with no sharing between clients.
>>>
>>> toplink.cache.shared.<ENTITY> - allows you to use a different setting
>>> per entity type then the default.
>>>
>>> Cheers,
>>>
>>> Doug
>>>
>>> -----Original Message-----
>>> From: Peter Havelaar [mailto:peter-java_net_at_jabbah.net]
>>> Sent: Wednesday, August 30, 2006 11:34 AM
>>> To: persistence_at_glassfish.dev.java.net
>>> Subject: Re: Toplink Cluster Documentation
>>>
>>>
>>> Thank you Tom,
>>>
>>> I see when persisting an object it gets written to the session cache
>>> of the
>>> parent server.
>>> How do you configure Toplink to have a session server and clients?
>>>
>>> Regards,
>>> Peter
>>>
>>> ----- Original Message -----
>>> From: "Tom Ware" <tom.ware_at_oracle.com>
>>> To: <persistence_at_glassfish.dev.java.net>
>>> Sent: Wednesday, August 30, 2006 3:56 PM
>>> Subject: Re: Toplink Cluster Documentation
>>>
>>>
>>> Hi Peter,
>>>
>>> TopLink Essentials does not currently include any specific clustering
>>> support. Its caching functions in a cluster through effective
>>> configuration
>>> of optimistic locking, cache type/size, and query refreshing.
>>>
>>> Here is a good article describing the core locking/caching
>>> functionality of
>>> TopLink -
>>> http://www.oracle.com/technology/tech/java/newsletter/articles/toplink/toplink_caching_locking.html
>>>
>>>
>>> For details of how to configure TopLink Essential's caching see -
>>> http://www.oracle.com/technology/products/ias/toplink/jpa/resources/toplink-jpa-extensions.html#TopLinkCaching
>>>
>>>
>>>
>>> -Tom
>>>
>>> Peter Havelaar wrote:
>>>
>>>
>>>
>>>
>>>> Hello guys,
>>>>
>>>> I have been trying to find the documentation of how to setup a cluster
>>>> configuration with Toplink JPA in glassfish.
>>>> Can anyone point me in the right direction?
>>>> And how does Toplink's cluster capabilities integrate with Glassfish's
>>>> V2 new cluster abilities.
>>>>
>>>> Regards,
>>>> Peter Havelaar
>>>>
>>>
>>>
>>>
>
>