So according to your explanation if i do something like (is B) or (is
C), those classes will be included into my SWF????
I am no longer at the office but tomorrow that will be the first thing
i will try.
I have used the C object in other modules of the application so i am
not really positive that it will work but it is worth the try.
--- In flexcoders@yahoogroups.com, "Josh McDonald" <[EMAIL PROTECTED]> wrote:
>
> Then the problem is with your definition of C, and it's being
unmarshalled
> incorrectly. That's basically what I was trying to say, but I think I
> explained it poorly.
>
> When you make no explicit reference to the class C it is never
included in
> your SWF, so the remoting system never sees the [RemoteObject]
annotation,
> and hence the unmarshaller simply creates an Object (instead of a
C). When
> you're referencing B with the expression "(is B)" the compiler
includes B in
> your swf, and then it encounters a reference to C inside B, so it
includes
> that as well. When you fetch your object, the unmarshaller sees that
"myC"
> should be a C, so it instantiates a new C and then tries to populate it.
> Somehow the strongly-typed population of C is failing, so you get the
> default values. But when you never reference B, the compiler never
sees C,
> so the unmarshaller never knows about it and just creates an Object
(or more
> likely an ObjectProxy) for the "myC" field. Also note that in this
case your
> objects you expect to be instances of B will also actually be
ObjectProxy
> instances. Do a little single-step debugging and some
> trace(getQualifiedClassName(someInstance)) to see what's really going on
> inside your SWF at runtime to see if what I'm saying is what's actually
> happening.
>
> But it looks to me if you're only interested in fixing the problem (not
> everybody wants to know as much detail as I do I've learned over the
years),
> go over your Flex and Java definitions of C with a fine-tooth comb
and make
> sure they match!
>
> -Josh
>
> On Tue, Sep 9, 2008 at 10:16 AM, dmiramontesval <[EMAIL PROTECTED]
> > wrote:
>
> > I don't think that is what's happening, when i use "if (i is B)" the
> > condition does work, it enters the if block but it resets the C
object.
> >
> > I tried a new thing, on B i changed the myC declaration
> >
> > public var myC:Object; // Object instead of C
> >
> > By doing this i can use if (i is B) and now it doesn't reset the
> > values of myC, but the problem is that if i try the following:
> >
> > if (i.myC is C)
> >
> > this gives me false :(
> >
> >
> > Any ideas?
> >
> >
> > --- In flexcoders@yahoogroups.com, "Josh McDonald" <dznuts@> wrote:
> > >
> > > Sounds to me like you're accidentally declaring b.myC as a static,
> > perhaps.
> > >
> > > Actually, double check your examples (perhaps using the link report
> > option
> > > on MXMLC). It might be that you're not actually referencing B and
> > it's not
> > > becoming part of your SWF, in which case you're getting a "best
guess"
> > > object where you think you're getting an instance of B (you can't
> > check for
> > > "is B" without including it in your swf, but you can check for
"!(is A)"
> > > without including the B class.
> > >
> > > In which case, it's the unmarshaller that's killing your data when
> > trying to
> > > convert it to a B (becuase now it knows to do it, once you've
> > referenced the
> > > class and it's in your SWF). Double check how you're defining C in
> > your Flex
> > > *and in your Java*.
> > >
> > > Also, if it's the unmarshaller that's the problem, I'd
definitely try a
> > > compile against Flex 3.01 and see if the problem goes away. If
> > you've got a
> > > smallest-failiing case project for this bug it should only take you
> > a few
> > > minutes.
> > >
> > > -Josh
> > >
> > > On Tue, Sep 9, 2008 at 9:53 AM, dmiramontesval
> > > <dmiramontesval@>wrote:
> > >
> > > > Ummmmm actually my example is wrong, i was missing something,
let me
> > > > explain again:
> > > >
> > > > I have 3 classes as a matter of fact, classes A and B are
correct but
> > > > i forgot to mention that inside B there is an object C:
> > > >
> > > > [RemoteClass(alias="com.test.B")]
> > > > public class B {
> > > > public var id:Number;
> > > > public var name:String;
> > > > public var myC:C
> > > > }
> > > >
> > > > [RemoteClass(alias="com.test.C")]
> > > > public class C {
> > > > public var testVar1:Number;
> > > > public var testVar2:String;
> > > > }
> > > >
> > > >
> > > > A objectA = new A();
> > > > objectA.myMap = new HashMap();
> > > > B objectB1 = new B();
> > > > C objectC1 = new C();
> > > > objectB1.id = 1;
> > > > objectB1.name = "Test";
> > > > objectC1.testVar1 = 2;
> > > > objectC1.testVar2 = "Hello";
> > > > objectB1.myC = objectC1;
> > > > myMap.put("key1", objectB1);
> > > >
> > > >
> > > > Now here is the deal, the only property being reset is the C
object,
> > > > the id and name properties are not reset
> > > >
> > > >
> > > > for each(var i:* in objectA.myMap) {
> > > > if (i is B) {
> > > > trace(i.id + " " + i.name);
> > > > trace(i.myC.testVar1 + " " + i.myC.testVar2);
> > > > }
> > > > }
> > > >
> > > > The first trace works fine, but the second trace shows NaN and
empty
> > > > string.
> > > > If i change the code to:
> > > >
> > > > for each(var i:* in objectA.myMap) {
> > > > if (!(i is A)) {
> > > > trace(i.id + " " + i.name);
> > > > trace(i.myC.testVar1 + " " + i.myC.testVar2);
> > > > }
> > > > }
> > > >
> > > > Both traces work fine, prints 1 Test and 2 Hello.
> > > >
> > > > Like you said i have some logic inside the B constructor:
> > > >
> > > > public function B() {
> > > > myC = new C();
> > > > }
> > > >
> > > > I commented the constructor and instead of getting the values
reset i
> > > > got an error saying i tried to access a null reference, since C is
> > > > null (if i don't use an instance of B then it works fine).
> > > >
> > > > So i am kinda back where i started, when i use the B class the C
> > > > object inside each B object is reset.
> > > >
> > > >
> > > > --- In flexcoders@yahoogroups.com, "Josh McDonald" <dznuts@>
wrote:
> > > > >
> > > > > Right, I see. I suppose you may be doing something funky in the
> > > > constructor
> > > > > for your actual impl of A or B. Try commenting out the
constructor
> > > > and see
> > > > > if you have the same problem.
> > > > >
> > > > > -Josh
> > > > >
> > > > > On Tue, Sep 9, 2008 at 9:17 AM, dmiramontesval
> > > > > <dmiramontesval@>wrote:
> > > > >
> > > > > > They keys in the Java map are Strings and the values are B
> > objects,
> > > > > > you could say it is HashMap<String, B>.
> > > > > > So suppose in Java i do this:
> > > > > >
> > > > > > A objectA = new A();
> > > > > > objectA.myMap = new HashMap();
> > > > > > B objectB1 = new B();
> > > > > > objectB1.id = 1;
> > > > > > objectB1.name = "Test";
> > > > > > myMap.put("key1", objectB1);
> > > > > >
> > > > > > In Flex if i iterate over the myMap property:
> > > > > >
> > > > > > for each(var i:* in objectA.myMap) {
> > > > > > if (i is B) {
> > > > > > trace(i.id + " " + i.name);
> > > > > > }
> > > > > > }
> > > > > >
> > > > > > Doing this resets the B object inside myMap, so the trace
> > prints NaN
> > > > > > and empty string.
> > > > > >
> > > > > > If i dont use an instance of B:
> > > > > >
> > > > > > for each(var i:* in objectA.myMap) {
> > > > > > if (!(i is A)) {
> > > > > > trace(i.id + " " + i.name);
> > > > > > }
> > > > > > }
> > > > > >
> > > > > > The trace prints 1 Test.
> > > > > >
> > > > > > The main issue is that if i create an instance of B
anywhere in my
> > > > > > code, the B object inside myMap resets.
> > > > > >
> > > > > > The second issue is that inside the myMap property there
are two
> > > > > > objects instead of just one, this additional object is a
> > reference to
> > > > > > A and its key is "owner", so the myMap property looks like:
> > > > > >
> > > > > > var myMap:Object = {owner:the A object, key1: the B object};
> > > > > >
> > > > > >
> > > > > > I have no idea where this reference to the A object comes
> > from, but i
> > > > > > can live with that, the main issue is that i can't use the
B class
> > > > > > because if i do the B objects inside the map are reset.
> > > > > >
> > > > > >
> > > > > > --- In flexcoders@yahoogroups.com, "Josh McDonald" <dznuts@>
> > wrote:
> > > > > > >
> > > > > > > The problem I think is you're using the wrong data
structures.
> > > > > > >
> > > > > > > If your Java map looks like this:
> > > > > > >
> > > > > > > HashMap<int, String> myMap;
> > > > > > >
> > > > > > > What you'll get in Flex isn't what you've got below, it's an
> > > > object like
> > > > > > > this:
> > > > > > >
> > > > > > > var mymap : Object =
> > > > > > > {
> > > > > > > 1: "String 1",
> > > > > > > 2: "String 2",
> > > > > > > 79: "Blue"
> > > > > > > }
> > > > > > >
> > > > > > > Not the structure that you're trying to coerce it to based
> > on the
> > > > > > code you
> > > > > > > posted. But since this is clearly just "example" Flex
code and I
> > > > have no
> > > > > > > idea about what your Java looks like, I'm just guessing.
> > > > > > >
> > > > > > > -Josh
> > > > > > >
> > > > > > > On Tue, Sep 9, 2008 at 8:46 AM, dmiramontesval
> > > > > > > <dmiramontesval@>wrote:
> > > > > > >
> > > > > > > > I have this weird issue and i can't figure it out, let me
> > explain:
> > > > > > > >
> > > > > > > > I have a java object A which has a HashMap variable myMap,
> > > > this map
> > > > > > > > will hold objects of class B. In ActionScript i have the
> > > > corresponding
> > > > > > > > class A which has a variable myMap but since there is no
> > > > HashMap in
> > > > > > > > ActionScript its type is Object and i also have the
> > corresponding
> > > > > > class B.
> > > > > > > >
> > > > > > > > [RemoteClass(alias="com.test.A")]
> > > > > > > > public class A {
> > > > > > > > public var myMap:Object; // this is the HashMap in Java
> > > > > > > > }
> > > > > > > >
> > > > > > > > [RemoteClass(alias="com.test.B")]
> > > > > > > > public class B {
> > > > > > > > public var id:Number;
> > > > > > > > public var name:String;
> > > > > > > > }
> > > > > > > >
> > > > > > > > I need to put the objects B contained in the map inside a
> > > > DataGrid so
> > > > > > > > i am obtaining the object of class A using a
RemoteObject and
> > > > then i
> > > > > > > > iterate over the myMap property using a for each in
loop, like
> > > > this:
> > > > > > > >
> > > > > > > > for each(var i:* in objectA.myMap) {
> > > > > > > > someArrayCollection.add(i);
> > > > > > > > }
> > > > > > > >
> > > > > > > > The first issue appears here, suppose the java HashMap
> > contains 3
> > > > > > > > elements, in the ActionScript loop i get 4 elements, the
> > > > fourth one
> > > > > > > > being a reference to the A object (its key appears as
> > "owner"). In
> > > > > > > > order to avoid this i use the "is" operator like this:
> > > > > > > >
> > > > > > > > for each(var i:* in objectA.myMap) {
> > > > > > > > if (i is B) {
> > > > > > > > someArrayCollection.add(i);
> > > > > > > > }
> > > > > > > > }
> > > > > > > >
> > > > > > > > Now here is the real issue, when i do this the B objects
> > > > contained in
> > > > > > > > the myMap property are reset to their initial values
(NaN and
> > > > empty
> > > > > > > > string according to the B class). I changed the if
condition
> > > > to this
> > > > > > > > and worked:
> > > > > > > >
> > > > > > > > for each(var i:* in objectA.myMap) {
> > > > > > > > if (!(i is A)) {
> > > > > > > > someArrayCollection.add(i);
> > > > > > > > }
> > > > > > > > }
> > > > > > > > When i did this the DataGrid shows the elements in the
> > > > > > > > someArrayCollection perfectly fine. I did a little more
> > > > testing and i
> > > > > > > > "figured" out the issue, if i use an instance of class B
> > > > anywhere in
> > > > > > > > my application, the values of the B objects inside the
myMap
> > > > property
> > > > > > > > are reset, for example:
> > > > > > > >
> > > > > > > > for each(var i:* in objectA.myMap) {
> > > > > > > > if (i is B) {
> > > > > > > > someArrayCollection.add(i);
> > > > > > > > }
> > > > > > > > }
> > > > > > > > var test:B = new B();
> > > > > > > >
> > > > > > > > This resets the B objects inside the myMap property of
the A
> > > > object
> > > > > > > > which makes no absolute sense, this is why when i used
the B
> > > > class in
> > > > > > > > the if condition the objects reset their values.
> > > > > > > >
> > > > > > > > So the thing is whenever i use the B class, which is
the class
> > > > of the
> > > > > > > > objects inside myMap, the B objects are reset!!!! Does
anyone
> > > > know how
> > > > > > > > to fix this?????
> > > > > > > >
> > > > > > > > I am using Flex 2.01 hotfix 3, i wonder if this is
some kind
> > > > of bug
> > > > > > > > that was solved in a later release.
> > > > > > > >
> > > > > > > > Any help would be appreciated.
> > > > > > > >
> > > > > > > >
> > > > > > > > ------------------------------------
> > > > > > > >
> > > > > > > > --
> > > > > > > > Flexcoders Mailing List
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> > > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > --
> > > > > > > "Therefore, send not to know For whom the bell tolls. It
> > tolls for
> > > > > > thee."
> > > > > > >
> > > > > > > http://flex.joshmcdonald.info/
> > > > > > >
> > > > > > > :: Josh 'G-Funk' McDonald
> > > > > > > :: 0437 221 380 :: josh@
> > > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > ------------------------------------
> > > > > >
> > > > > > --
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> > Groups
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> > > > > >
> > > > > >
> > > > >
> > > > >
> > > > > --
> > > > > "Therefore, send not to know For whom the bell tolls. It
tolls for
> > > > thee."
> > > > >
> > > > > http://flex.joshmcdonald.info/
> > > > >
> > > > > :: Josh 'G-Funk' McDonald
> > > > > :: 0437 221 380 :: josh@
> > > > >
> > > >
> > > >
> > > >
> > > > ------------------------------------
> > > >
> > > > --
> > > > Flexcoders Mailing List
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Groups
> > > > Links
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> > > >
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> > >
> > >
> > > --
> > > "Therefore, send not to know For whom the bell tolls. It tolls for
> > thee."
> > >
> > > http://flex.joshmcdonald.info/
> > >
> > > :: Josh 'G-Funk' McDonald
> > > :: 0437 221 380 :: josh@
> > >
> >
> >
> >
> > ------------------------------------
> >
> > --
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> >
> >
> >
>
>
> --
> "Therefore, send not to know For whom the bell tolls. It tolls for
thee."
>
> http://flex.joshmcdonald.info/
>
> :: Josh 'G-Funk' McDonald
> :: 0437 221 380 :: [EMAIL PROTECTED]
>
