Is there any way to get an annotation onto a field in a data class such that when I do ThatDataClass theField I can call findAnnotation lt Annotation gt on the KProperty and get the Annotation back I am having trouble doing that after doing field Annotation val theField

Is there any way to get an annotation onto a field in a data class such that when I do ThatDataClass::theField, I can call findAnnotation<Annotation>() on the KProperty and get the Annotation back? I am having trouble doing that, after doing @field:Annotation val theField.

diesieben07

10/26/2017, 10:08 PM

Just annotate the property:

@Annotation val theField

santiago

10/26/2017, 10:13 PM

I have tried that. But when I do MyClass::theField.findAnnotation<Annotation>(), it returns null. MyClass::theField.annotations is also an empty list.

diesieben07

10/26/2017, 10:23 PM

Which annotation is it?

santiago

10/26/2017, 10:23 PM

In this case it is the @ColumnName annotation from JDBI.

diesieben07

10/26/2017, 10:27 PM

That annotation is a Java annotation declared to annotate either a field or a method. It cannot annotate the property itself.

santiago

10/26/2017, 10:28 PM

I want to annotate the field, I just thought the KProperty for that field would have annotation information for the field.

Is there any way to get the annotation on a field?

I tried @field:ColumnName and @get:ColumnName as well, but I don’t see it on the field or the getter method.

diesieben07

10/26/2017, 10:42 PM

Weird. I am seeing the same, that looks like a bug, but I am not sure.

santiago

10/26/2017, 10:45 PM

I tried searching the bug database, but it proved difficult to find anything, the UI Was very confusing.

When I look at the generated bytecode, the annotation is present.

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