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https://issues.apache.org/jira/browse/FLEX-33810?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13792083#comment-13792083
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Maurice Amsellem commented on FLEX-33810:
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>From Justin McLean:
I know datagrid use objectUtil describeType and caches the XML structures to
work out the columns. May need to be careful around that.
> Replace describeType by faster describeTypeJSON
> -----------------------------------------------
>
> Key: FLEX-33810
> URL: https://issues.apache.org/jira/browse/FLEX-33810
> Project: Apache Flex
> Issue Type: Improvement
> Reporter: Maurice Amsellem
> Assignee: Maurice Amsellem
>
> FP 10.1 has introduced new describeTypeJSON API that is roughly 3.5 times
> faster than previous describeType.
> describeType is still used in many places in the SDK.
> Since ApacheFlex is supporting FP 10.2 and higher, it should be beneficial in
> terms of speed to replace all occurrences of describeType by describeTypeJSON.
> {warning}
> Caution must be taken not to break the public APIs, that existing Flex apps
> maybe using.
> {warning}
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