Sort a %Library.ListOfObjects

Question

Question

Ecaterina Necula · Aug 11, 2017

I have a list of %Library.ArrayOfObjects . Each of list elements has some properties. I have to sort list by one of its objects properties. Is there a predefined method to doing that? (quicksort maybe?)

Discussion (3)1

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Robert Cemper · Aug 11, 2017

given the property you want to sort is unique and suitable as key for your array you may get the expected result.

set key=obj.sortproperty
set tSC=myArray.SetAt(obj, key)

4 0

score 0 · Answer 1 · 2017-08-11T11:53:43-04:00

Hi,

no. There aren't any library methods for that. It should be simple enough to implement a fairly generic quicksort you can re-use.

cheers,
Fab

score 0 · Answer 2 · 2017-08-11T15:35:02-04:00

Copy them into new array with keys = target property value. Iteration over this new array would be ordered as desired. Or when you set your array initially you can set keys = target property value.
Another option is to order by local. Set some local with subscript = target property value, and local value as an oref. Then iterate over the local - you'll get ordered orefs.