Re: [eclipselink-dev] SVN main commit: Bug#211700 - batch fetching, also

[Karen Butzke <karen.moore@xxxxxxxxxx>]

James,
Regarding bug 309242 I think a better way to add the batch-fetch-size support to the eclipselink orm schema would be to add a batch-fetch complex type that includes type and size attributes.  This would align with the BatchFetch annotation and prevents the batch-fetch-type and batch-fetch-size elements from being duplicated in multiple mappings in the schema. 

Also, what were your thoughts on not adding functionality to the basic-collection and basic-map elements in 2.1 since those are now deprecated?

Thanks,
Karen

On 4/19/2010 1:05 PM, James Sutherland wrote:

SVN main commit: Bug#211700 - batch fetching, also 220400 , 309242

 

https://bugs.eclipse.org/bugs/show_bug.cgi?id=211700

 

Code review: Andrei (pending)

 

Changes:

- Added batch-fetch-size to orm schema and metadata processing.

- Added _expression_ support for nested IN Lists for composite key comparisons.

- Added batch fetching support for IN with composite primary keys.

- Changed batch fetching query to first check the cache if possible, to avoid queries for cached objects.

- Added ManyToOneMapping to complement the JPA ManyToOne annotation and avoid distinct in batch fetch for OneToOne.

- Added support for WLS getVendorConnectionSafe to WLS 10 platform, to avoid connection being discarded.

- Added JPA test for overriding sequence generators.

- Added performance comparison test for batch fetching types.

- Added JPA metadata support for overriding sequence generators.

 

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