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From "Benjamin Hill (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CB-402) Improve Contacts search taking a long time by using (NSArray*)filteredArrayUsingPredicate:(NSPredicate*)predicate
Date Thu, 10 Jan 2013 22:34:13 GMT

    [ https://issues.apache.org/jira/browse/CB-402?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13550516#comment-13550516
] 

Benjamin Hill commented on CB-402:
----------------------------------

v2.3.0: Have a few minute wait time when returning results against a ~2000 entry address book,
and searching on all fields/all results.
                
> Improve Contacts search taking a long time by using (NSArray*)filteredArrayUsingPredicate:(NSPredicate*)predicate
> -----------------------------------------------------------------------------------------------------------------
>
>                 Key: CB-402
>                 URL: https://issues.apache.org/jira/browse/CB-402
>             Project: Apache Cordova
>          Issue Type: Improvement
>          Components: iOS
>            Reporter: Shazron Abdullah
>            Priority: Minor
>              Labels: benchmark, unit-test
>             Fix For: 2.4.0
>
>
> We have to analyze this first to see if it is a big problem, with a huge N. I believe
it is.
> Right now our search method is O( n ), while using Apple's search method it is possibly
O( log n ) - but that's just a guess if I assume internally they use a binary search.
> Steps:
> 1. Grab all the contacts in a NSArray through ABAddressBookCopyArrayOfAllPeople
> 2. Construct a NSPredicate for the filter, and call filteredArrayUsingPredicate on the
NSArray returned in step 1.
> 3. Convert the NSArray returned in step 2. to our CDVContact objects

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