Kotlin Reflection

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Reflection


Reflection is a set of language and library features that allows for introspecting the structure of your own program at runtime

Reflection is distributed as a seperate artifact


On the JVM platform, the runtime component required for using the reflection features is distributed as a separate artifact kotlin-reflect.jar in the Kotlin compiler distribution. This is done to reduce the required size of the runtime library for applications that do not use reflection features.

How to use reflection in Gradle


Add the dependency on kotlin-reflect
dependencies {
  implementation("org.jetbrains.kotlin:kotlin-reflect:1.4.10")
}

Class references reflection


The most basic reflection feature is getting thre runtime reference to a kotlin class
val c = MyClass::class
The reference is a value of type KClass .
  • Kotlin class referrence is different from a java class reference.
  • To obtain a java class reference use th .java property on a KClass
  • val c = MyClass::class.java
    

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    Reflection

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