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From Daniel John Debrunner <...@apache.org>
Subject Re: how should store get an object based on format id and collation id?
Date Mon, 16 Apr 2007 20:23:32 GMT
Mike Matrigali wrote:
> 
> 
> Daniel John Debrunner wrote:
>> Mamta Satoor wrote:
>>
>>> Hi Dan,
>>>  
>>> The problem we are trying to solve is provide a way to Store so that 
>>> it can call a method (say it's called 
>>> getInstanceGetterForFormatIDandCollationType) on DVF with format id & 
>>> collation type and get an InstanceGetter for that combination. 
>>
>>
>> Why use InstanceGetter here?
> Current store code uses InstanceGetter's, should that not be the case?
> As I have said the history of this predates when store knew it had
> DVD's.  Is there no performance to be had by the current use of
> InstanceGettor's where store makes one call get an InstanceGettor and
> then muliple calls on it to allocate possibly many objects based off
> of it?

DVD's can also act as their own factory using getNewNull(), that would 
be more efficient than InstanceGetter. As you say this change could have 
been made once the switch to using DVDs consistently through the system 
was done.

Dan.


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