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 <garydgreg...@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: garydgreg...@gmail.com | ggreg...@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 > > >
