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Re: Can I put a filter into a lambda?

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On Monday, December 4, 2017 at 8:20:59 AM UTC-5, Eric Sosman wrote:
>      If it *must* be an ArrayList (and not some other kind of List),
> you might want to change the last bit to
> 
> 	.collect(Collectors.toCollection(ArrayList::new));
> 
> Although the toList() method appears to use ArrayList anyhow, it
> doesn't guarantee to do so -- meaning that it might use some other
> List in a future Java, or in circumstances I haven't studies (e.g.,
> it might behave differently with a parallel stream).
> 
ok, thanks, I'll keep that in mind.  I'll have to test if the variable can be assigned and if that would be more efficient.  Currently it doesn't matter what kind of list because I made the rowToModelIndex variable final, just calling clear() then addAll().

> > Milliseconds do count in a row filtering method which executes thousands of times.
> 
>      If performance is important, measure.  Don't guess.
> 
Indeed.  I am doing test runs with relatively large data sets.

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Thread

Can I put a filter into a lambda? Eric Douglas <e.d.programmer@gmail.com> - 2017-12-01 12:52 -0800
  Re: Can I put a filter into a lambda? Eric Sosman <esosman@comcast-dot-net.invalid> - 2017-12-01 16:28 -0500
    Re: Can I put a filter into a lambda? Eric Douglas <e.d.programmer@gmail.com> - 2017-12-04 05:03 -0800
      Re: Can I put a filter into a lambda? Eric Sosman <esosman@comcast-dot-net.invalid> - 2017-12-04 08:20 -0500
        Re: Can I put a filter into a lambda? Eric Douglas <e.d.programmer@gmail.com> - 2017-12-04 05:32 -0800
          Re: Can I put a filter into a lambda? Eric Sosman <esosman@comcast-dot-net.invalid> - 2017-12-04 09:29 -0500
            Re: Can I put a filter into a lambda? Eric Douglas <e.d.programmer@gmail.com> - 2017-12-04 07:14 -0800
            Re: Can I put a filter into a lambda? Sebastian <nowhere@nirvana.org> - 2017-12-08 15:00 +0100

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