hi, is there a way to specify multiple targets for one annotation? instead of using two annotations ...

# announcements

[VladimirR]

hi, is there a way to specify multiple targets for one annotation?
instead of using two annotations @field:JsonProperty("some") @get:JsonProperty("some")

[David Eriksson]

You should only need one or the other

[David Eriksson]

You usually select one convention for your serializable data classes (Java beans): field annotations or getter annotations.

[VladimirR]

Thx for reply. I've found an issue with jackson objectMapper

open class A(
    @JsonProperty("Field1")
    val field1: String
)

class B(
    @JsonProperty("Field2")
    val field2: String
) : A("hello")

val b = B("world")
println(objectMapper.writeValueAsString(b))

gives me "{"Field2":"world","field1":"hello"}"
But if I specify field: and get: target, it fixed an issue. Ok, thanks, I will search why it happened in jackson source code.

[David Eriksson]

Well if you never specify @field: or `@get:`then it comes a constructor parameter annotation

[David Eriksson]

I also hope you have the Kotlin module for Jackson installed

objectMapper.registerModule(KotlinModule())

[VladimirR]

https://kotlinlang.slack.com/archives/C0922A726/p1588685339420400?thread_ts=1588676678.416400&cid=C0922A726
getter annotation also created when @get: not specified

[VladimirR]

A::field1.getter.annotations.forEach {
    println(it.annotationClass)
}

prints com.fasterxml.jackson.annotation.JsonProperty

[David Eriksson]

Alright!