Hi Rainer, all,
On 6/6/2011 5:19 AM, Rainer Kwesi Schweigkoffer wrote:
> Hi Linda,
>
> Linda DeMichiel, am 27 May 2011 hast Du um 11:30 zum Thema "[jsr338-experts] Re: Some remainders" geschrieben :
>
>>>>> 3.7.2 p. 107
>>>>>
>>>>> What is "update" aiming at for CacheStoreMode USE ?
>>>>>
>>>>
>>>> I'm not sure I understand the question. Update updates the cache; use of refresh
>>>> should update as well I believe.
>>>
>>> Thus it wants to say that with mode USE entities are updated in 2nd
>>> level cache, but not in 1st level one, doesn't it ?
>>>
>>
>> You mean in the persistence context? It depends on who is causing the action
>> on the cache. Perhaps I am not following you though-- could you be more specific
>> about the case you have in mind.
>
> the javadocs read to me as if with store mode REFRESH already cached
> items were updated when being read from the database while with USE
> they were not.So I was wondering, what is being updated with mode USE
> then.
>
When a transaction commits, cached data should be updated, right?
The USE case would probably be clearer rewritten as follows:
/**
* Insert entity data into cache when read from
* database and insert/update entity data when
* committed into database: this is the default
* behavior. Does not force refresh of already
* cached items when reading from database.
*/
USE,
Folks, please let me know if you disagree.
best regards,
-Linda
> But probably it just wants to say that with REFRESH already cached
> items must be updated, while with USE they may or may not be updated.
> Might be worth making that more explicit, though.
>
> Best regards
> Rainer
>
>
>
> ---
> Rainer Schweigkoffer SAP AG Walldorf
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