First, the behavior of ActionScript 3 Number, int and uint is based on the ECMA Script 4 specification (well, at least what this specification stipulated at the time of release). Given that AS3 has been released Flex is dependent on the way it is today. Second, Java primitives can't be null (they default to 0 if one tries to provide null to them on reflection). So, if you wanted to preserve a null value then your Java propeties would have to use the Object form of the Java numeric types. Third, for ActionScript integer types (i.e. int and uint), and Java integer types (long, int, short, and byte) can not accept NaN. If you try to get the long value from Double.NaN (or Float.NaN) you'll get 0.
Fourth, ActionScript Number goes over the wire in AMF3 using the double type and is deserialized as a Java Double. On instantiating your remote Java object or passing a parameter to a method to be invoked this Double is translated to the required type using reflection and translation. So, an ActionScript Number.NaN -> Java Double.NaN -> Java Long 0 and thus your limitation is that AS numeric types can't be null in general and Java integers can't be NaN. So you need to either use Object in ActionScript to hold null or use Double (or Float) in Java to hold NaN. Pete ________________________________ From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Jeff Krueger Sent: Tuesday, December 05, 2006 10:38 AM To: flexcoders@yahoogroups.com Subject: Re: [flexcoders] FDS number NaN Anyone else have this problem or am I just doing something wrong. Thanks Jeff > > > > Jeff Krueger wrote: > > > All, > > > > > > I am finding that when I pass a actionscript class to a remote > > > java object and a number variable type in the actionscript > class is > > > set to NaN (Null), that the java class gets set to a 0, instead > > of a > > > null. Is there something I am missing or something I need to set > > the > > > number to so it will be null in my java class? > > > > > > Thanks > > > > > > Jeff
