Re: JRuby

> From: Ramesh Rajamani <rameshrajamani@...>
> Subject: JRuby
> To: lgleasain@...
> Cc: ajug-members@...
> Date: Wednesday, May 20, 2009, 8:30 AM
>
>
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>  Hello Leasain,
>
>  
>
>                   
> I have few questions to you
>
>  
>
>                    1)
> Can we create a custom library in Ruby language like
> java?
>
>  
>
>                   
> 2) How is the security aspect of Ruby language? Since Ruby
> is developed using C language and i guess one can also
> implement pointers which is not allowed in Java language.
> Correct me if iam wrong...
>
>  
>
>                    3) Yesterday
> you were telling in Java we have different classes and
> in JRuby we can maintain all the classes in one file. But i
> some how feel if we segregate the large file and split into
> different parts even novice can understand the code and
> modularity can be achieved. Correct me if iam wrong...
>
>  
>
>                   
> 4) I tried the blog stuff couple of months back with JRuby
> in NetBean 6.1 under windows platform. The
> development work is fast when compare to Java. But
> i feel the gem update problem is there
> since Ruby version is looking for new version of
> NetBean and vice versa...
>
>  
>
>                   
> Iam currently doing SCEA and love to learn new technologies
> like JRuby. I also would like to know the
> realtime advantage or problem of using JRuby. 
>
>  
>
>                   
> It was a nice presentation yesterday ...
>
>  
>
>  
>
> Thanks and Regards,
>
> Ramesh Rajamani
>
>  
> > Date: Tue, 19 May 2009 21:53:43 -0700
> > From: lgleasain@...
> > To: ajug-members@...
> > Subject: [ajug-members] JRuby Versus Python
> >
> >
> > Thanks for the question Ann,
> >
> > I'm going to answer this on the mailing list in
> case this question is useful to others.
> >
> > Python is a great language. It has a lot of the power
> of Ruby. When you are off the JVM comparing C-Python to
> C-Ruby there are definite differences between the two
> languages that might lead you in one direction or another.
> For example with Python the garbage collector runs at a set
> interval for a determinate amount of time. Ruby on the other
> hand uses a mark and sweep collector that is a lot more like
> Java. Python on C is also a lot more performant than
> C-Ruby.
> >
> > When you bring both languages on the JVM two other
> differences come to mind. One, web development frameworks.
> Ruby has rails, Merb, Camping etc. along with loads of
> testing frameworks etc.. Python has DJango and a handful of
> testing frameworks, but also from the benchmarks that I have
> seen (and Your Mileage May Vary) it appears to be much
> slower than JRuby on the JVM.
> >
> > If you are looking for another language to learn,
> JRuby is fun. If you are not happy with DJango, need better
> performance than Jython (but not as much as pure Java would
> give you), or want to leverage other Ruby code then Ruby
> would be worth your while.
> >
> > If you don't have any specific uses for the
> language other than curiosity you might want to consider
> having a look at Clojure, Scala or (if you are really
> adventurous) Erlang. The functional paradigm will really
> stretch your mind.
> >
> > Thy Python community tends to have more of a
> scientific/mathmatical slant whereas the Ruby community has
> a younger start up Web 2.0 type of feel to it........and you
> are not forced to use all of those tabs with Ruby :)
> >
> > Lance
> >
> > PS: Great Blog!
> >
> > > Hi Lance,
> > >
> > > Thanks for your talk and demo of JRuby I actually
> re-downloaded Ruby
> > > tonight to start playing with it again. I was
> just curious, other than the
> > > object oriented aspect from Ruby, have you come
> across how it compares to
> > > other hybrid languages? I use Jython a lot at
> work and was curious if you
> > > have seen or heard how the two compare.
> > >
> > > Thanks,
> > > --
> > > Ann
> > > http://annalytical.addicks.us/wordpress/
> > >
> > > "Never trust a programmer with a
> screwdriver"
> >
> > _______________________________________________
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