Re: Mapping objects

Very interesting and great to know!

One final question and then I can leave you guys alone =D

If I do that for my constructor in ActionScript, but my constructor for my 
Java class has no parameters, will I have a problem mapping objects, or 
would it work just the way it's working now?

Again, thanks a ton guys, you guys have helped me so, so much!

Thanks,

--LD

----- Original Message ----- 
From: "Todd Hivnor" <[email protected]>
To: <[email protected]>
Sent: Wednesday, July 05, 2006 4:19 PM
Subject: Re: [Openamf-user] Mapping objects


>I think the important change here was in your constructor.
> The following code will _not_ do what you want, I should have
> caught it earlier.
>
>>> ActionScript Code for SmackletType:
>>>
>>> class SmackletType {
>>>
>>>  // class properties
>>>  private var _smackletName:String;
>>>  private var _smackletTeaseLink:String;
>>>  private var _smackletLink:String;
>>>  private var _smackletThumbnail:String;
>>>
>>>  // constructor
>>>
>>>  public function SmackletType(smackletName:String,
>>> smackletLink:String, smackletTeaseLink:String, smackletThumb:String) {
>>>
>>>   _smackletThumbnail = smackletThumb; // Bad for remoting. Will null out 
>>> smackletThumbnail
>>>   _smackletTeaseLink = smackletTeaseLink;
>>>   _smackletLink = smackletLink;
>>>   _smackletName = smackletName;
>>>
>>> } // SmackletType constructor
>
>
> Remoting will create a SmackletType object, populate the
> instance variables, and finally call the constructor.
> But it won't pass any _arguments_ to the constructor.
> So, the constructor above will actually reset
> your instance variables like _smackletThumbnail
> back to null, because the smackletThumb argument is null.
>
> If I am making an ActionScript class which is sometimes
> instantiated via Remoting, and sometimes instantiated from
> ActionScript code, I do something like this:
>
> public function SmackletType(smackletName:String,
> smackletLink:String, smackletTeaseLink:String, smackletThumb:String) {
>
> if (arguments.length == 4) {
> // Class was instantiated from ActionScript w/ all arguments
>     _smackletThumbnail = smackletThumb;
>    _smackletTeaseLink = smackletTeaseLink;
>    _smackletLink = smackletLink;
>    _smackletName = smackletName;
> } else if (arguments.length == 0) {
> // Class was probably instantiated via Remoting.
> // You might test to ensure that smackletThumbnail
> // or other instance variables are defined as expected.
> } else {
> // Class was called from ActionScript with wrong number of arguments.
> // --> programmer error.
> }
> }
>
>
>
>
> Luke DeWitt wrote:
>> Hooha!
>>
>> It works! I am not sure whether it was removing the parameters from the
>> constructors, removing the _ before variable names, or the fact that I 
>> moved
>> the AS classes into a package of the same name, but it appears to be
>> working!
>>
>> I couldn't get anything to work when ServiceCapture was running, and 
>> their
>> site was down when I tried to access it, but it is working now!!
>>
>> Thank you both for your help... though I have a feeling I'll be back for
>> more in the not so near future!
>>
>> Thanks,
>>
>> --LD
>>
>> ----- Original Message ----- 
>> From: "Martin Wood" <[email protected]>
>> To: <[email protected]>
>> Sent: Wednesday, July 05, 2006 10:27 AM
>> Subject: Re: [Openamf-user] Mapping objects
>>
>>
>>
>>> hmm, definitely try using service capture and see what that says about 
>>> the
>>> object being sent to flash (i think you get a 30 day trial...i bought it
>>> because
>>> its an invaluable tool for remoting development)
>>>
>>> one other thing i noticed which you should be aware of is that the
>>> constructor
>>> of the actionscript class gets called after de-serialization so you have
>>> to be
>>> careful what you do in your constructors.
>>>
>>> read this post for more information :
>>>
>>> http://www.darronschall.com/weblog/archives/000186.cfm
>>>
>>> anyway...back to the point..if you are getting a null that means that
>>> flash cant
>>> do that cast, so i think that the object is being sent as the correct 
>>> type
>>> from
>>> java.
>>>
>>> personally i would try these things (as well as using service capture)
>>>
>>> 1. Make both constructors parameter less
>>>
>>> 2. Remove the underscores from the properties
>>>
>>> 3. triple check the mapping configuration
>>>
>>> 4. Keep the Object.registerClass call as part of the initialization code
>>> in the
>>> Smacklet class
>>>
>>> class com.flashdb.domain.Smacklet
>>> {
>>>     private var reg:Boolean =
>>> Object.registerClass("com.flashdb.domain.Smacklet",com.flashdb.domain.Smacklet);
>>>
>>>  // Rest of class code
>>> }
>>>
>>>
>>> if it doesnt work after that then i try a liberal dose of swearing. :)
>>>
>>> good luck.
>>>
>>> Martin
>>>
>>> Using Tomcat but need to do more? Need to support web services, 
>>> security?
>>> Get stuff done quickly with pre-integrated technology to make your job
>>> easier
>>> Download IBM WebSphere Application Server v.1.0.1 based on Apache 
>>> Geronimo
>>> http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
>>> _______________________________________________
>>> Openamf-user mailing list
>>> [email protected]
>>> https://lists.sourceforge.net/lists/listinfo/openamf-user
>>>
>>>
>>
>>
>> Using Tomcat but need to do more? Need to support web services, security?
>> Get stuff done quickly with pre-integrated technology to make your job 
>> easier
>> Download IBM WebSphere Application Server v.1.0.1 based on Apache 
>> Geronimo
>> http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
>> _______________________________________________
>> Openamf-user mailing list
>> [email protected]
>> https://lists.sourceforge.net/lists/listinfo/openamf-user
>>
>
>
> Using Tomcat but need to do more? Need to support web services, security?
> Get stuff done quickly with pre-integrated technology to make your job 
> easier
> Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
> http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
> _______________________________________________
> Openamf-user mailing list
> [email protected]
> https://lists.sourceforge.net/lists/listinfo/openamf-user
> 


Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642