Re: Java Method Overloading

I ask on the Gitter channel: https://gitter.im/gwtproject/gwt

lofid...@gmail.com schrieb am Mittwoch, 21. April 2021 um 21:44:27 UTC+2:

Hi,

I could confirm your problem. Here is an example: 

https://github.com/lofidewanto/gwt-overloading/blob/main/src/main/java/com/github/lofi/client/Calculator.java

[INFO] --- gwt-maven-plugin:1.0.0:compile (default) @ jsinterop-simple-example ---

[INFO] Compiling module com.github.lofi.Calculator

[INFO]    Errors in com/github/lofi/client/Calculator.java

[INFO]       [ERROR] Line 33: 'void Calculator.setValue(Float)' and 'void Calculator.setValue(Integer)' cannot both use the same JavaScript name 'setValue'.

[INFO]       [WARN] Line 33: [unusable-by-js] Type of parameter 'value' in 'void Calculator.setValue(Float)' is not usable by but exposed to JavaScript.

[INFO]       [WARN] Line 37: [unusable-by-js] Type of parameter 'value' in 'void Calculator.setValue(Integer)' is not usable by but exposed to JavaScript.

[INFO]    [WARN] Suppress "[unusable-by-js]" warnings by adding a `@SuppressWarnings("unusable-by-js")` annotation to the corresponding member.

pierre...@gmail.com schrieb am Mittwoch, 21. April 2021 um 08:50:31 UTC+2:

The value was an Integer but is now an Float:

private  Float  value;

The "normal" setter is now: 

public void setValue(Float value) {

this.value = value;

}

Then, I added this method  to accomodate the current app   :

public void setValue(Integer value) {

this.value = value.floatValue();

}
Thanks for any hint
Pierre

Le mardi 20 avril 2021 à 18:54:28 UTC+2, lofid...@gmail.com a écrit :

Could you show me the whole class?

this.value cannot be an Integer...

....

// This won't work in Java - Type mismatch...

private Integer value;

public void setValue(Integer value) {

   this.value = value.floatValue();

}

pierre...@gmail.com schrieb am Dienstag, 20. April 2021 um 11:34:57 UTC+2:

I have a model class Item with a Integer value. I builded an app using this model.

For a new particular case, the value should be a Float as well.

So I changed the type of value to Float and regenerate setter/getter. 

In order to not change the current app, I try to create a overloading method : 

public void setValue(Integer value) {

this.value = value.floatValue();

}

At java level, everything seems ok, all compile errors are solved. But at GWT compilation, the call of this method complains with :

            [ERROR] Line 93: The method setValue(Float) in the type Item is not applicable for the arguments (Integer)

 like if GWT doesnot see my method setValue(Integer).

 

 Am I missing something ? Is there a way to make this works without creating a second separate attribute ?

Thanks in advance 

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