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Changes for page WebObjects with Scala

Last modified by Ravi Mendis on 2011/05/10 02:10
From version 467.1
edited by Ravi Mendis
on 2010/12/24 00:39
Change comment: There is no comment for this version
To version 469.1
edited by Ravi Mendis
on 2010/12/24 00:43
Change comment: There is no comment for this version

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44 44  Scala doesn't have static variables or methods. Instead Scala employs the [[Singleton Pattern>>http://en.wikipedia.org/wiki/Singleton_pattern]] which is built into the language and is **thread-safe**: a class can have a //Companion Object// that will allow you to achieve something equivalent to static variables - but better.
45 45  
46 46  You don't have to worry about synchronizing access to shared mutable fields in a concurrent application.
47 -This is not however true for mutable ##val## e.g: ##NSMutableArray##, ##scala.collection.mutable.ListBuffer## which you will have to synchronize the adding to or removing from.
47 +(This is not however true when for example you have a ##val## declared as a ##NSMutableArray##. You will still have to synchronize when adding to or removing from this mutable field).
48 48  
49 49  The following is an example of the use of a //Companion Object// for Talent in Scala instead of Talent static fields in Java.
50 50