RE: [flexcoders] FDS (java dao adapter) problem with castings?

Sat, 22 Apr 2006 21:36:31 -0700

Did you have a typed reference to the Address and User in your code
elsewhere?  If there isn't anything linking the class in (which your
cast is doing) something like this could happen.

Matt

-----Original Message-----
From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of [EMAIL PROTECTED]
Sent: Tuesday, April 18, 2006 5:12 AM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] FDS (java dao adapter) problem with castings?

Hi guys,

Was wondering if anyone faced this problem and what are the possible
workarounds..

I have been experimenting with Flex Data Services and ended up with a
small
prototype where I have a list of users and each user can have several
addresses.
Please  see  AS Classes below.
Visually it looks like 2 datagrids - the first one shows user, and once
a
user is selected its address become visible in the second datagrid.

Well in general it works great, however I seem to have to explicitly
cast
each item of addressList to an instance of  Address class before sending
to
the server (otherwise they will come as instances of ASObject class),
although I'm prettry sure they come ok from Java side...

private function getAddresses():Array{
      var aList:ICollectionView = ICollectionView(addrList);
      var cursor:IViewCursor = aList.getCursor();
      var arr:Array = new Array();
      while (!cursor.afterLast)
      {
         arr.push(Address(cursor.current));
         cursor.moveNext();
      }
  return arr;
}

However I'd expect AS to maintain the correct class instance?

------------ AS Classes ------------------------
package samples.user {

    import mx.data.IManaged;
    import mx.data.utils.Managed;
    import mx.core.mx_internal;
    import mx.collections.ArrayCollection;
    import mx.utils.ObjectUtil;
   
    [Managed]
      [RemoteClass(alias="samples.user.User")]
      public class User {
            public var id:int;
          public var firstName:String ;
          public var lastName:String ;
          public var email:String ;
          public var addressList:Array;                      //  it is
mapped
as " public Set addressList; "     on Java side
      }
}



package samples.user {
    import mx.data.IManaged;
    import mx.data.utils.Managed;
    import mx.core.mx_internal;
    import mx.collections.ArrayCollection;
    import samples.user.User;
   
    [Managed]
      [RemoteClass(alias="samples.user.Address")]
      public class Address {
            public var id:int;
            public var street:String;
            public var houseNum:int;
            public var zip:String;
            public var user:User;
      }
}


Many thanks in advance,
Alex






--
Flexcoders Mailing List
FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt
Search Archives:
http://www.mail-archive.com/flexcoders%40yahoogroups.com
Yahoo! Groups Links








--
Flexcoders Mailing List
FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt
Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com


YAHOO! GROUPS LINKS



Reply via email to