[Hibernate-issues] [Hibernate-JIRA] Commented: (HHH-1617) Check the second-level cache before adding a PK to a batch fetch

[Karl B. (JIRA) <no...@at...>]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-1617?page=comments#action_22752 ] 

Karl Baum commented on HHH-1617:
--------------------------------

I was looking into adding the logic for peeking into the cache within BatchFetchQueue.getEntityBatch and I ran into one problem.  When fetching objects from the cache within DefaultLoadEventListener the LockMode is used to verify if we should be checking the cache versus doing a lookup in the database.

    final boolean useCache = persister.hasCache() && 
			source.getCacheMode().isGetEnabled() && 
			event.getLockMode().lessThan(LockMode.READ);

My issue is I do not know where to get the LockMode for each EntityKey within BatchFetchQueue's batchLoadableEntityKeys.  Am I missing something obvious?

Thanks.

-karl

> Check the second-level cache before adding a PK to a batch fetch
> ----------------------------------------------------------------
>
>          Key: HHH-1617
>          URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1617
>      Project: Hibernate3
>         Type: Improvement

>   Components: core
>     Reporter: Gavin King

>
>
> BatchFetchQueue.getEntityBatch() should check the second level cache to see if the pk is available in the cache before adding it to a batch of pks. Ditto for getCollectionBatch().

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