# ProvidedColumnTypeConverter

Artifact: [androidx.room3:room3-common](https://developer.android.com/jetpack/androidx/releases/room3) [View Source](https://cs.android.com/search?q=file:androidx/room3/ProvidedColumnTypeConverter.kt+class:androidx.room3.ProvidedColumnTypeConverter) Added in [3.0.0](https://developer.android.com/jetpack/androidx/releases/room3#3.0.0)

*** ** * ** ***


```
@Target(allowedTargets = [AnnotationTarget.CLASS])
@Retention(value = AnnotationRetention.BINARY)
public annotation ProvidedColumnTypeConverter
```

<br />

*** ** * ** ***

Marks a class containing `https://developer.android.com/reference/androidx/room3/ColumnTypeConverter` functions provided to Room at runtime.

Pass an instance of the annotated class to `https://developer.android.com/reference/androidx/room3/RoomDatabase.Builder#addColumnTypeConverter(kotlin.Any)`. Room verifies that the converter is provided in the builder and throws an exception if missing.