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From Paul Benedict <pbened...@apache.org>
Subject Re: I need a map for long and double
Date Wed, 06 Nov 2013 05:39:07 GMT
Same here. I didn't know this existed. Thanks.


On Tue, Nov 5, 2013 at 10:49 PM, Gary Gregory <garydgregory@gmail.com>wrote:

> Thank you all for replying.
>
> HPPC looks promising and it's Apache 2 licensed. I'll give it a closer
> look.
>
> Gary
>
>
> On Tue, Nov 5, 2013 at 8:59 PM, Ted Dunning <ted.dunning@gmail.com> wrote:
>
> > Trove is GPL (last I looked).
> >
> > Mahout has primitive collection implementations (and is obviously ASL).
> >
> > There are other implementations such as hppc (see
> > http://labs.carrotsearch.com/hppc.html )
> >
> > Mahout is a decent implementation, but I think that hppc has had a round
> or
> > two more optimization.
> >
> > And 150,000 entires in a table is not big for this sort of situation.
> >  Anything short of Integer.MAX_VALUE/small_factor should be fine.
> >
> >
> >
> >
> > On Tue, Nov 5, 2013 at 5:49 PM, Bruno P. Kinoshita <
> > brunodepaulak@yahoo.com.br> wrote:
> >
> > > Maybe Trove's TObjectMapLong?
> > >
> > > [1]
> > >
> >
> http://trove4j.sourceforge.net/javadocs/gnu/trove/map/TObjectLongMap.html
> > >
> > >
> > > HTH,
> > >
> > > Bruno P. Kinoshita
> > > http://kinoshita.eti.br
> > > http://tupilabs.com
> > >
> > >
> > > >________________________________
> > > > From: Gary Gregory <garydgregory@gmail.com>
> > > >To: Commons Developers List <dev@commons.apache.org>
> > > >Sent: Tuesday, November 5, 2013 11:39 PM
> > > >Subject: I need a map for long and double
> > > >
> > > >
> > > >Hi All:
> > > >
> > > >I'm looking for a Map implementation that takes a String as a key and
> a
> > > >long as the value (and another taking a double as the value). I'd
> rather
> > > >not take the extra memory of using generic map with a Long object
> value
> > > hit
> > > >since the maps will have up to 150,000 entries. That would save me...
> a
> > > meg
> > > >for each map I am guestimating (on a 64-bit JVM). A meg here, a meg
> > > there...
> > > >
> > > >I did not see anything in [collections] or Google Guava.
> > > >
> > > >Thoughts?
> > > >
> > > >Gary
> > > >
> > > >--
> > > >E-Mail: garydgregory@gmail.com | ggregory@apache.org
> > > >Java Persistence with Hibernate, Second Edition<
> > > http://www.manning.com/bauer3/>
> > > >JUnit in Action, Second Edition <http://www.manning.com/tahchiev/>
> > > >Spring Batch in Action <http://www.manning.com/templier/>
> > > >Blog: http://garygregory.wordpress.com
> > > >Home: http://garygregory.com/
> > > >Tweet! http://twitter.com/GaryGregory
> > > >
> > > >
> > > >
> > >
> >
>
>
>
> --
> E-Mail: garydgregory@gmail.com | ggregory@apache.org
> Java Persistence with Hibernate, Second Edition<
> http://www.manning.com/bauer3/>
> JUnit in Action, Second Edition <http://www.manning.com/tahchiev/>
> Spring Batch in Action <http://www.manning.com/templier/>
> Blog: http://garygregory.wordpress.com
> Home: http://garygregory.com/
> Tweet! http://twitter.com/GaryGregory
>



-- 
Cheers,
Paul

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