Refers to data classes feature in Kotlin programming language.
Questions tagged [data-class]
380 questions
0
votes
1 answer
Kotlin data class and 30+ attributes
how do we create data classes in kotlin , where the class contains more than 25+ attributes.
Use case is there is a class in java which has more than 25+ attributes and is needed to be converted to kotlin data class, morever the question would be…
chetank
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Is there a better way other than setting data class constructor values to null if its possible the data cannot be set
I have a situation whereby I am creating a rest client in kotlin as a practical learning exercise and have recently come up against this:
data class ai constructor(val statusCode: Int,
val a: Long?…
user1383163
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How to hash data class with array property
I have data class ItemMainData(val title: String?, val fields: Array). What's the proper way to override hashCode()?
I am aware of this answer (Equals method for data class in kotlin), but in that case the hash of the array is sufficient to…
Jack Guo
- 3,959
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Kotlin data class definition is not in roundEnv.rootElements (annotation processing)
Inside an annotation processor that extends AbstractProcessor I have:
override fun process(annotations: MutableSet, roundEnv: RoundEnvironment): Boolean {
roundEnv.getElementsAnnotatedWith(FxBean::class.java)
.forEach {
…
Vitaly
- 4,358
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1 answer
copy/map json/data class structure in kotlin
I am newbie in kotlin and I try to copy a JSON structure to another one in an efficient way.
I have an API called getData() how send back a data structure defined as below:
data class DataA(
var id: String,
var cartItems: List,…
Seb
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- 73
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1 answer
How to transition Java class to Kotlin Data Class
I used Android studio's Kotlin plugin to convert my Java class to Kotlin. The thing is it's not Kotlin style still. I want to have Kotlin Data Class instead. But whenever I create it with a primary and secondary constructors it won't work. What…
MikeB
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Companion objects hide class -- bug or feature?
In Kotlin, the following seems to be reasonable code:
data class Foo(val bar: String) {
fun combine(other: Foo): Foo {
return Foo(bar + other.bar)
}
companion object Foo {
fun someHelper() {}
}
}
However, it does…
Raphael
- 9,779
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COM accessible data class c#
My COM interface:
[ComVisible(true)]
public interface IPersonAccessor
{
Person GetById(int id);
}
The Person Class is a simple data class as below:
public class Person
{
public string Name { get; set; }
public int Age { get; set;…
Victor Mukherjee
- 10,487
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- 97
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Copy input into different cells with jQuery and data-class
Multiple tables contain data in cells. If I change the data in a cell, they should also be changed in the same cell in other tables.
