Hi. 2020-08-19 8:09 UTC+02:00, schophil <[email protected]>: > Hi, > > I have a question regarding the use of DfpField. > > Is an instance of DfpField thread safe?
Personally I don't know. Sorry. I've just looked at some of the code, and there is an occurrence of the "synchronized" keyword; so it seems that thread-safety was at least taken into account. Maybe someone else can provide a more accurate answer... This functionality is implemented by old classes, dating before the project had decided to focus on immutable instances in order to ensure their thread-safety. And IIRC, it's the first time, in more than 10 years, that someone mentions using "Dfp"... > Can I use a single instance to > perform Dfp calculations in different threads? Could you provide an example of your use-cases? Isn't it possible to make copies, rather than share a single instance? More generally, I'm curious: why would you use it rather than JDK's "BigDecimal"? > I have looked at the code of Dfp and I am a bit worried by the calls to > DfpField.setIEEEFlagsBits(). > Can I just set the flags in advance? You can, of course; but there are several places where the question of thread-safety could be raised... Also, in the new "Commons Numbers" component[1], there is an attempt to implement the concept of "field" in a cleaner (IMHO) way than in "Commons Math" (CM). Functionality in "Commons Numbers" is probably incomplete. Looking for volunteers in order to continue porting more useful stuff from CM (refactoring them on the way by making use of Java 8 features). Regards, Gilles [1] http://commons.apache.org/proper/commons-numbers/ --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
