On 18 October 2013 15:49, Benedikt Ritter <brit...@apache.org> wrote: > Hello Jens, > > welcome to the ML. It is good style to prefix emails with the short name of > the component they are about. So since you have a question about commons > lang you should put the [LANG] prefix in the subject line (I've done it in > this response). > > Now to your question: TBH I don't really know :-) Can anybody else help? > Hen? Matt?
AFAIK, these are just commonly used constant values which are not provided by the standard Java classes. This avoids the overhead of boxing for code that needs Long rather than long. > If your looking for material about binary compatibility, you should read > http://wiki.eclipse.org/Evolving_Java-based_APIs It provides a good > overview over the topic. > > Regards, > Benedikt > > > 2013/10/15 Jens Dietrich <j.b.dietr...@massey.ac.nz> > >> Hi, >> >> I have a quick question regarding the use of constants in Apache Commons - >> in some classes/interfaces like org.apache.commons.lang.math.NumberUtils >> some constants are defined using wrapper types and not primitive types. >> What are the reasons for this? >> >> The background of my question is that I am doing some research on binary >> vs source compatibility in Java. One such issue is constant inlining, and I >> try to find out whether engineers consciously use wrapper types to prevent >> inlining. >> >> Cheers, Jens >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: dev-unsubscr...@commons.apache.org >> For additional commands, e-mail: dev-h...@commons.apache.org >> >> > > > -- > http://people.apache.org/~britter/ > http://www.systemoutprintln.de/ > http://twitter.com/BenediktRitter > http://github.com/britter --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@commons.apache.org For additional commands, e-mail: dev-h...@commons.apache.org
