[flexcoders] Re: BlazeDS and Java 5 Enum Support - works only one way?

[moonusamy]

Unfortunately that doesn't work for me. I have an AS class
corresponding to every Java class including enums. I want to be able
to pass an instance of the AS class as the arg and have it translate
to the appropriate Enum. 

So basically here's what I want to do:
on the Java side:
public enum Color {RED, GREEN}
A method on a Java class Bar as follows:
public void foo(Color c);

on the AS side:
[RemoteClass(alias="Color")]
public class ASColor implements IExternalizable
{
  private var _value:String;
  
  public function ASColor(val:String=null):void {
    this._value = val;
  }
                
  public function get value():String {
    return this._value;
  }
                
  public static const RED:String = "RED";
  public static const RED:String = "GREEN";             
                  
  public function readExternal(input:IDataInput):void {
    this._value = input.readUTF();
  }

  public function writeExternal(output:IDataOutput):void {
    output.writeUTF(this._value);
  }
}

var c:ASColor = new ASColor(ASColor.RED);
invoke foo(c) thru RemoteObject

Note: The enum implementation on the AS side is weak but that is just
a limitation of AS3 not having an equivalent of readResolve(). 

--- In flexcoders@yahoogroups.com, "Peter Farland" <[EMAIL PROTECTED]> wrote:
>
> If you have an Enum argument in a Java method, you need to send it a
> String. During method invocation, BlazeDS will use
> Enum.valueOf(desiredClass, yourStringValue) to create an enum on your
> behalf.
> 
> 
> -----Original Message-----
> From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
> Behalf Of moonusamy
> Sent: Wednesday, December 19, 2007 3:45 PM
> To: flexcoders@yahoogroups.com
> Subject: [flexcoders] BlazeDS and Java 5 Enum Support - works only one
> way?
> 
> 
> If I have a Java method that returns an Enum, it seems to be serialized
> ok as a String, but if I have a Java method that takes an Enum argument,
> I get the same error I used to get before with LCDS 2.5.1:
> 
> faultDetail = "Types cannot be instantiated without a public, no
> arguments constructor."
> 
> Java 5 Enums don't have public no-arg constructors.
> 
> Unless I am missing something, Enum support in BlazeDS works only one
> way. Anyone hit this?
> 
> Vijay
> 
> 
> 
> 
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