On May 4, 2010, at 12:34 PM, Theodore Petrosky wrote:
> I copied the fetchJobs(EC, qual, sort) from the _Job.java and pasted into
> Job.java with the change "fetchSpec.setUsesDistinct(true);".
> Is this the recommended way to handle this?
>
>
> public static NSArray<Job> fetchDistinctJobs(EOEditingContext editingContext,
> EOQualifier qualifier, NSArray<EOSortOrdering> sortOrderings) {
> EOFetchSpecification fetchSpec = new
> EOFetchSpecification(_Job.ENTITY_NAME, qualifier, sortOrderings);
> fetchSpec.setUsesDistinct(true);
> fetchSpec.setIsDeep(true);
> NSArray<Job> eoObjects =
> (NSArray<Job>)editingContext.objectsWithFetchSpecification(fetchSpec);
> return eoObjects;
> }
That is the best way to handle this situation if you need the DB to handle the
distinct, but you may get acceptable performance by simply using:
public static NSArray<Job> fetchDistinctJobs(EOEditingContext editingContext,
EOQualifier qualifier, NSArray<EOSortOrdering> sortOrderings) {
return ERXArrayUtilities.arrayWithoutDuplicates(fetchJobs(editingContext,
qualifier, sortOrderings));
}
It's less duplicated code, but it won't be as fast either. But if the array
isn't that big it might not make much difference.
Dave _______________________________________________
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