Re: missing getAll(List keys) method?

[Craig L Russell]

Hi Daniel,




Craig

On May 23, 2007, at 3:55 PM, Daniel Lee wrote:

Take a look at the findAll(Collection oids) method of OpenJPAEntityManager. This should do a better job than N get(Object key) methods.

Do we miss the getAll(List keys) method for data cache?

When fetching objects with eager "to-many" relationships, the code is
calling get(Object key) multiple time (one for each object in the

with 100 orders.  The performance can be greatly improved if we have

especially important in a distributed environment.

Is there a way (new plug-in) to avoid the multiple-trip for single

this area?

Many thanks.
Daniel

relationship). For example, it is doing 1 get() call for each order placed by a customer which we are fetching, that means 100 calls for a customer getAll(List keys) methods which returns all orders in one call. This is relationship, or can we implement the code to improve the performance in

Craig Russell
Architect, Sun Java Enterprise System http://java.sun.com/products/jdo
408 276-5638 mailto:[EMAIL PROTECTED]
P.S. A good JDO? O, Gasp!

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