JSNI and method signature

[Pavel Byles]

Can someone show me the method signature for the following Java method ?:

public static void myJavaMethod(JsArray<MyJsObject> jso) { ... }

My JsObject's class:
public class MyJsObject extends JavaScriptObject { ... }

JsArray's class:

class JsArray<E extends JavaScriptObject> extends JavaScriptObject {


  protected JsArray() { }
  public final native int length() /*-{ return this.length; }-*/;


  public final native E get(int i) /*-{ return this[i];     }-*/;
}

When I do this:
$wnd.myJavaMethod =
        @com.xxxx.xxxxx.client.GfcJs::myJavaMethod(Lcom/xxxx/xxxxx/client/JsArray<Lcom/xxxx/xxxxx/client/MyJsObject;>;);

I get the following error:
JavaScript parsing: Expected a valid parameter type signature in JSNI method reference.

--
-Pav

[kozura]

Remove the generics (<Lcom...;>) from the signature.

On Apr 2, 12:57 pm, Pavel Byles <pavelby...@gmail.com> wrote:
> Can someone show me the method signature for the following Java method ?:
>
> public static void myJavaMethod(JsArray<MyJsObject> jso) { ... }
>
> My JsObject's class:
> public class MyJsObject extends JavaScriptObject { ... }
>
> JsArray's class:
>
> class JsArray<E extends JavaScriptObject> extends JavaScriptObject {
>   protected JsArray() { }
>   public final native int length() /*-{ return this.length; }-*/;
>   public final native E get(int i) /*-{ return this[i];     }-*/;
>
> }
>
> When I do this:
> $wnd.myJavaMethod =
>

> @com.xxxx.xxxxx.client.GfcJs::myJavaMethod(Lcom/xxxx/xxxxx/client/JsArra*y*

[Pavel Byles]

Thanks Kozura,

that worked. However, Eclipse auto-completes with the generics stuck in there.

Also what happens if I have two java signatures:

public static void myJavaMethod(JsArray<MyJsObject> jso) { ... }

public static void myJavaMethod(JsArray<MyJsObject2> jso) { ... }

How will the javascript know which method to call if the generics aren't included?

--

Pavel

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-Pav

[kozura]

Java doesn't include generics in the signature, it's simply a compile
time check. Try it, you can't actually make those two methods in the
same scope.

[Pavel Byles]

But my call to both java methods will be:

@com.xxxx.xxxxx.client.GfcJs::myJavaMethod(Lcom/xxxx/xxxxx/client/JsArray;);

which java method will it call?

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-Pav

[kozura]

Java simply won't allow you to create both of those methods in the
same class, because it considers them to have the same signature.

On Apr 6, 8:10 am, Pavel Byles <pavelby...@gmail.com> wrote:
> But my call to both java methods will be:

> @com.xxxx.xxxxx.client.GfcJs::myJavaMethod(Lcom/xxxx/xxxxx/client/JsArra*y*

[Pavel Byles]

Ah I see.

ok. Thanks for all the help!

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--
-Pav