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Re: Something Better than ArrayList

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On Tue, 21 Jun 2011 22:56:51 +0100, Tom Anderson
<twic@urchin.earth.li> wrote:

[snip]

>You can't do it with a normal Map. You can do it with a ConcurrentMap:
>
>http://download.oracle.com/javase/6/docs/api/java/util/concurrent/ConcurrentMap.html
>
>ConcurrentMap has it because you can't easily build an efficient 
>threadsafe implementation of putIfAbsent on top of the normal Map 
>interface. It's a bit of a shame Map doesn't have it, because it's useful 
>even if you're not dealing with multiple threads!

     Thank you for that bit.  I did not know if I was reading right or
missing something.

Sincerely,

Gene Wirchenko

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Something Better than ArrayList Gene Wirchenko <genew@ocis.net> - 2011-06-20 22:34 -0700
  Re: Something Better than ArrayList Donkey Hottie <donkey@fredriksson.dy.fi> - 2011-06-21 09:55 +0300
    Re: Something Better than ArrayList Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2011-06-21 09:00 +0000
      Re: Something Better than ArrayList Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2011-06-21 10:48 +0000
        Re: Something Better than ArrayList Tom Anderson <twic@urchin.earth.li> - 2011-06-21 22:57 +0100
  Re: Something Better than ArrayList Paul Cager <paul.cager@googlemail.com> - 2011-06-21 02:22 -0700
    Re: Something Better than ArrayList Gene Wirchenko <genew@ocis.net> - 2011-06-21 14:19 -0700
      Re: Something Better than ArrayList Tom Anderson <twic@urchin.earth.li> - 2011-06-21 22:56 +0100
        Re: Something Better than ArrayList Gene Wirchenko <genew@ocis.net> - 2011-06-21 16:39 -0700
  Re: Something Better than ArrayList Gene Wirchenko <genew@ocis.net> - 2011-06-21 07:51 -0700

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