Re: Sort Approach in Many to Many Subset
Re: Sort Approach in Many to Many Subset
- Subject: Re: Sort Approach in Many to Many Subset
- From: James Cicenia <email@hidden>
- Date: Tue, 21 May 2013 12:08:01 -0500
Actually, my question revolves around sorting a method that needs a parameter.
For instance, I have an EO with the calculated value:
totalOrderAmountByStore(Store store);
How would you notationally write a sort to sort those EOs by that method?
make sense?
On May 21, 2013, at 11:41 AM, Jesse Tayler <email@hidden> wrote:
>
> well, I'm not certain I understand your question but if your method derives that totalOrderAmount then you'd have to sort that in memory after getting a reasonable number of objects from another fetch.
>
> often times in these situations I setup a kind of calculated integer and store the result right on the User table, as an integer, so I can order objects based on that result.
>
> you'd need to identify the places (likely relationships) where operations might possibly change that number, and recalculate that result again at runtime -- again, you'd be storing and saving the resulting number on the user table for later sorting from the database.
>
> or maybe your issue is something else?
>
>
> On May 21, 2013, at 12:33 PM, James Cicenia <email@hidden> wrote:
>
>>
>> I have the following:
>>
>> customer <<---->> stores.
>>
>> I want the top five customers by order total for a store.
>>
>> I wrote a method:
>>
>> customer.totalOrderAmountByStore(Store store);
>>
>> What is the best way to sort that?
>>
>> Is there some cool ERXKEy? Make an abstract Entity in my Model?
>>
>> Wondering
>> James
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