EmptyResultSetException

Added in 2.0.0

Kotlin |Java

android

open class EmptyResultSetException : RuntimeException

kotlin.Any
↳	kotlin.Throwable
	↳	java.lang.Exception
		↳	java.lang.RuntimeException
			↳	androidx.room.EmptyResultSetException

Thrown by Room when the query in a io.reactivex.Single DAO method needs to return a result but the returned result from the database is empty.

Since a io.reactivex.Single must either emit a single non-null value or an error, this exception is thrown instead of emitting a null value when the query resulted empty. If the io.reactivex.Single contains a type argument of a collection (e.g. Single<List<Song>>) the this exception is not thrown an an empty collection is emitted instead.

Summary

Public constructors
`EmptyResultSetException(message: String)`	android

Inherited functions

From kotlin.Throwable

`Unit`	`addSuppressed(@RecentlyNonNull p0: Throwable)`	android
`open Throwable`	`@RecentlyNonNull fillInStackTrace()`	android
`open String`	`@RecentlyNullable getLocalizedMessage()`	android
`open Array<StackTraceElement>`	`@RecentlyNonNull getStackTrace()`	android
`Array<Throwable>`	`@RecentlyNonNull getSuppressed()`	android
`open Throwable`	`@RecentlyNonNull initCause(@RecentlyNullable p0: Throwable)`	android
`open Unit`	`printStackTrace()`	android
`open Unit`	`printStackTrace(@RecentlyNonNull p0: PrintStream)`	android
`open Unit`	`printStackTrace(@RecentlyNonNull p0: PrintWriter)`	android
`open Unit`	`setStackTrace(@RecentlyNonNull p0: Array<StackTraceElement>)`	android

Inherited properties

From kotlin.Throwable

`open Throwable?`	`cause`	android
`open String?`	`message`	android

Public constructors