Yep, that's the issue. Actionscript has the concept of null. Java has the concept of null. It would seem that AMF/Flex should be able to map the two "correctly".
------------------------------------------------- Jim Schneider KJ Interactive, Inc. 1-877-370-6906 1-612-605-5399-----Original Message----- From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Dave Wolf Sent: Thursday, March 02, 2006 1:46 PM To: flexcoders@yahoogroups.com Subject: [flexcoders] Re: Flex2: AS Number to Java Long mapping The core of the issue is that the deserializer cant seperate a primitive from an Object wrapper right? I mean mapping a null onto a long of 0 is correct. The issue youre having is you want a Long which itsel is null right? I can say you'd face this issue in CORBA all the time too. The solution in CORBA was to pass a structure that had an isNull property. struct NullableLong { long value; bool isNull; } Now you would set the value to zero but the isNull to true. Just how we solved this back in the CORBA days :) Passing nulls across languages (hence the CORBA tie) is always an ugly issue in distributed computing. -- Dave Wolf Cynergy Systems, Inc. Macromedia Flex Alliance Partner http://www.cynergysystems.com Email: [EMAIL PROTECTED] Office: 866-CYNERGY --- In flexcoders@yahoogroups.com, "Jim Schneider" <[EMAIL PROTECTED]> wrote: > > Same happens with NaN. Do you (Adobe) have any thoughts as to whether this > is worthy of a "fix", or will we need to remember to add the logic to check > for 0 in all of our Java objects. > > > > Thanks, > > > > Jim > > > > ------------------------------------------------- > > Jim Schneider > > KJ Interactive, Inc. > > 1-877-370-6906 > > 1-612-605-5399 > > _____ > > From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On > Behalf Of Matt Chotin > Sent: Sunday, February 26, 2006 8:12 PM > To: flexcoders@yahoogroups.com > Subject: RE: [flexcoders] Flex2: AS Number to Java Long mapping > > > > What happens if you set the Number to NaN in AS? I believe null will coerce > to 0 in AS3. > > > > _____ > > From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On > Behalf Of Jim Schneider > Sent: Sunday, February 26, 2006 9:20 AM > To: flexcoders@yahoogroups.com > Subject: [flexcoders] Flex2: AS Number to Java Long mapping > > > > I'm experiencing the following behavior. I set an AS Number variable to null > prior to sending to a remote object. On the backend (Java), the Number is > converted to a 0. The expected data type on the Java end is a Long (object, > not primitive). This is causing us problems since we expect a null Long > object to be represented as null in the database, not 0, and as an indicator > of a new object that needs to be inserted rather than updated. > > > > Is this expected behavior/mapping? Is it a bug? I can fix it on the backend > with some additional logic, but I'd rather not have to do that. > > > > Thoughts? > > > > Thanks. > > > > ------------------------------------------------- > > Jim Schneider > > KJ Interactive, Inc. > > 1-877-370-6906 > > 1-612-605-5399 > > > > > > > -- > Flexcoders Mailing List > FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt > Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com > > > > > SPONSORED LINKS > > > Web > <http://groups.yahoo.com/gads?t=ms&k=Web+site+design+development&w1=Web+site > +design+development&w2=Computer+software+development&w3=Software+design+and+ > development&w4=Macromedia+flex&w5=Software+development+best+practice&c=5&s=1 > 66&.sig=L-4QTvxB_quFDtMyhrQaHQ> site design development > > Computer > <http://groups.yahoo.com/gads?t=ms&k=Computer+software+development&w1=Web+si > te+design+development&w2=Computer+software+development&w3=Software+design+an > d+development&w4=Macromedia+flex&w5=Software+development+best+practice&c=5&s > =166&.sig=lvQjSRfQDfWudJSe1lLjHw> software development > > Software > <http://groups.yahoo.com/gads?t=ms&k=Software+design+and+development&w1=Web+ > site+design+development&w2=Computer+software+development&w3=Software+design+ > and+development&w4=Macromedia+flex&w5=Software+development+best+practice&c=5 > &s=166&.sig=1pMBCdo3DsJbuU9AEmO1oQ> design and development > > > Macromedia > <http://groups.yahoo.com/gads?t=ms&k=Macromedia+flex&w1=Web+site+design+deve > lopment&w2=Computer+software+development&w3=Software+design+and+development& > w4=Macromedia+flex&w5=Software+development+best+practice&c=5&s=166&.sig=OO6n > PIrz7_EpZI36cYzBjw> flex > > Software > <http://groups.yahoo.com/gads?t=ms&k=Software+development+best+practice&w1=W > eb+site+design+development&w2=Computer+software+development&w3=Software+desi > gn+and+development&w4=Macromedia+flex&w5=Software+development+best+practice& > c=5&s=166&.sig=f89quyyulIDsnABLD6IXIw> development best practice > > > > > > _____ > > YAHOO! 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