On Jun 10, 2007, at 10:34 PM, Michelle Parker wrote:
Hi all
I have a slight problem which I am looking for the most efficient
solution:
I am comparing 2 NSArrays containing numbers, with the aim of
removing the numbers in one array from the other array.
The first array is obtained by rawRowsForSQL which returns the
numbers as Longs.
The second array is obtained by valueForKeyPath which returns the
numbers as Integers.
In addition to all the other replies, here is another way to handle
the type conversion. If the keyPath ends in orderNumber, add a
method named something like longOrderNumber:
public Long longOrderNumber() { return new Long(orderNumber
().longValue());
}
Then use ....longOrderNumber instead of ....orderNumber in your keypath.
IIRC, there is also a way to control the type returned by rawRows,
but I can't recall what it is.
Chuck
NSArray.removeObjectWithArray or NSSet.subtractSet don't work
because the objects are not equal.
The arrays can be very large, ie. 100,000 objects.
What is the best way to handle this?
thanks
mich
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