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Posted to issues@flex.apache.org by "Gareth Daniel Smith (JIRA)" <ji...@apache.org> on 2015/10/14 12:14:05 UTC
[jira] [Created] (FLEX-34942) Potential for performance
improvements in ListCollectionView.addAll/addAllAt
Gareth Daniel Smith created FLEX-34942:
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Summary: Potential for performance improvements in ListCollectionView.addAll/addAllAt
Key: FLEX-34942
URL: https://issues.apache.org/jira/browse/FLEX-34942
Project: Apache Flex
Issue Type: Improvement
Components: Collections
Reporter: Gareth Daniel Smith
Priority: Minor
The performance of ListCollectionView.addAll could be improved in the case where there is no sort/filter. Currently, in this case, one event is emitted per added row, but AFAICT there only needs to be a single event emitted (that would contain all the new rows).
This would improve performance a lot where there are grids/lists that are bound to ListCollectionView/ArrayCollection instances that get updated, which is a common use-case in my experience.
On a related note, please consider my pull request here: https://github.com/apache/flex-sdk/pull/18 - as this would alllow me to move away from ArrayCollection towards ArrayList without creating bugs that won't be detectable until runtime.
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