javascalautils

Class Unit

java.lang.Object

javascalautils.Unit

All Implemented Interfaces:

Serializable

public final class Unit
extends Object
implements Serializable

Represents the type scala.Unit.
The usage of Unit is for situations where one returns types such as Try or Future that are not meant to hold a value.
E.g.

 
 Try<Unit> deleteSynchronous(String id)
 Future<Unit> deleteAsynchronous(String id)
 
 

The example illustrates deleting something but the only thing we care of is if the operation was successful.
This becomes very apparent with the asynchronous method. In that case we only care if the operation is finished and successful.
One can of course return dummy objects/values but providing Unit is more concise as it clearly marks a non-value.

Since:

1.6

Author:

Peter Nerg

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
Unit()

Method Summary

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Unit

public Unit()