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Groups > comp.lang.java.programmer > #14506

Re: Caching with timed expiry

From Robert Klemme <shortcutter@googlemail.com>
Newsgroups comp.lang.java.programmer
Subject Re: Caching with timed expiry
Date 2012-05-14 23:47 +0200
Message-ID <a1dcrdF70bU1@mid.individual.net> (permalink)
References <joc4c0$2hm$1@news.albasani.net> <g7plq792jto36o32dqc5bi3k9gv2p94tt6@4ax.com>

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On 09.05.2012 23:43, Roedy Green wrote:
> On Tue, 08 May 2012 23:48:48 +0200, Sebastian
> <sebastian@undisclosed.invalid>  wrote, quoted or indirectly quoted
> someone who said :

>> does anyone of a cache / map implementation in which entries
>> expire after a fixed time? By which I mean that after a cnfigurable
>> delay after an enzry has been caches,it is automatically removed
>>from the cache and some clean-up action (perhaps event-triggred)
>> can be taken.

> You might want to look into weak links.
> http://mindprod.com/jgloss/weak.html

That does not give you control of the timing.  In theory a SoftReference 
might be better because GC is more reluctant to clear it.  But it's not 
entirely clear whether they actually behave differently in practice and 
you still do not get control of timing.

Kind regards

	robert

-- 
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/

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Thread

Caching with timed expiry Sebastian <sebastian@undisclosed.invalid> - 2012-05-08 23:48 +0200
  Re: Caching with timed expiry Jim Janney <jjanney@shell.xmission.com> - 2012-05-09 13:14 -0600
    Re: Caching with timed expiry Silvio Bierman <silvio@moc.com> - 2012-05-10 10:09 +0200
      Re: Caching with timed expiry Jim Janney <jjanney@shell.xmission.com> - 2012-05-10 03:48 -0600
        Re: Caching with timed expiry Silvio Bierman <silvio@moc.com> - 2012-05-10 12:56 +0200
      Re: Caching with timed expiry Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-05-10 06:57 -0300
        Re: Caching with timed expiry Sebastian <sebastian@undisclosed.invalid> - 2012-05-13 23:05 +0200
  Re: Caching with timed expiry Roedy Green <see_website@mindprod.com.invalid> - 2012-05-09 14:43 -0700
    Re: Caching with timed expiry Robert Klemme <shortcutter@googlemail.com> - 2012-05-14 23:47 +0200
    Re: Caching with timed expiry Arne Vajhøj <arne@vajhoej.dk> - 2012-05-20 22:18 -0400
  Re: Caching with timed expiry Paul Cager <paul.cager@googlemail.com> - 2012-05-09 13:09 -0700

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