InstanceCreators

Some serializable classes can't be initiated via an empty constructor. This is where InstanceCreators come in. For example, an EnumMap needs the enum class as a constructor parameter. So we can use the Type parameter retrieved when calling a serialization function to pass the enum class.

EnumMapInstanceCreator

object EnumMapInstanceCreator : InstanceCreator<EnumMap<*, *>> {

    private val ENUM_MAP_CONSTRUCTOR = EnumMap::class.java.getConstructor(Class::class.java)

    override fun createInstance(type: Type): EnumMap<*, *> {
        return ENUM_MAP_CONSTRUCTOR.newInstance((type as ParameterizedType).actualTypeArguments[0] as Class<*>)
    }

}

You can register it similarly to BinaryAdapters.

registerInstanceCreator(EnumMap::class, EnumMapInstanceCreator)

Note

This instance creator is registered by default.