Summary: Ctors | Inherited Methods

EmptyResultSetException

Kotlin |Java

public class EmptyResultSetException
extends RuntimeException

java.lang.Object
↳	java.lang.Throwable
	↳	java.lang.Exception
		↳	java.lang.RuntimeException
			↳	androidx.room.EmptyResultSetException

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

Since a Single<T> 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 Single<T> contains a type argument of a collection (e.g. Single<List<Song>>) then this exception is not thrown an an empty collection is emitted instead.

Summary

Public constructors
`EmptyResultSetException(String message)` Constructs a new EmptyResultSetException with the exception.

Inherited methods

From class


        
          java.lang.Throwable

`final void`	`addSuppressed(Throwable arg0)`
`Throwable`	`fillInStackTrace()`
`Throwable`	`getCause()`
`String`	`getLocalizedMessage()`
`String`	`getMessage()`
`StackTraceElement[]`	`getStackTrace()`
`final Throwable[]`	`getSuppressed()`
`Throwable`	`initCause(Throwable arg0)`
`void`	`printStackTrace()`
`void`	`printStackTrace(PrintWriter arg0)`
`void`	`printStackTrace(PrintStream arg0)`
`void`	`setStackTrace(StackTraceElement[] arg0)`
`String`	`toString()`

From class


        
          java.lang.Object

`Object`	`clone()`
`boolean`	`equals(Object arg0)`
`void`	`finalize()`
`final Class<?>`	`getClass()`
`int`	`hashCode()`
`final void`	`notify()`
`final void`	`notifyAll()`
`String`	`toString()`
`final void`	`wait(long arg0, int arg1)`
`final void`	`wait(long arg0)`
`final void`	`wait()`

Public constructors

EmptyResultSetException

public EmptyResultSetException (String message)

Constructs a new EmptyResultSetException with the exception.

Parameters
`message`	`String`: The SQL query which didn't return any results.