Exception: Using converters with parameterized types is not currently supported (BigDecimalToStringEncoder)

[javac9]

Getting this error when using BigDecimalToStringEncoder on setItems of public interface CardListViewModel extends TemplateModel { } interface.

First I put several @Encode annotations but then came this error. According to the Used in class part of the error message, it occurs in one of the interfaces my interface extends:
List<BigDecimal> getUserNumber4();
void setUserNumber4(BigDecimal... var1);

Are there plans to support Using converters with parameterized types in the near future/next releases? If not, what do you think about an annotation by which we could target and ignore the desired properties, if we can sacrifice them?

[javac9]

A quick question: would trying to use CardListView with LitElement instead of Polymer make any difference here? In other words, is this lack of support of parameterized types only Polymer-specific?

[tanbt]

Hi, could you give small project that reproduces the problem?

I tried with a project from https://start.vaadin.com/ with "Card List" view but see no error when using @Encode or parameterized type List<Person>.

Using LitElement, you can't define a TemplateModel interface and have to use @Id for binding data between the template and backend-side.

[javac9]

I didn't use Person entity but another one from a third-party API, which does have an attribute of type List<BigDecimal>.

"Using LitElement, you can't define a TemplateModel interface and have to use @id for binding data between the template and backend-side."
That seems OK for me - I don't necessarily use TemplateModel.

Do you think if I am to try with LitElement instead of Polymer, I could run into issues because the abovementioned third-party names their identification attributes as identity instead of id?

[pleku]

I'm not sure if I understand what is the latest question, but..

That seems OK for me - I don't necessarily use TemplateModel.

If you don't use TemplateModel and instead go for LitTemplate and bind manually to the id-mapped component/elements attributes/properties, you can decide which parts of the bean you bind and how you convert things. But I'm not sure if I get exactly what is tried to achieve here, I think it is converting a property of List<BigDecimal> to something the client understands and this could be for instance done as Element::setPropertList where the BigDecimal is converted to a String or Double.

[pleku]

Closing the issue due to inactivity and since it seems like it was a question instead of an bug or enhancement issue.

Please create a new issue if something is broken/missing with specifics on what you're trying to achieve, thanks.