Package org.linkki.util

Class Optionals

java.lang.Object

org.linkki.util.Optionals

@Deprecated(since="2.4.0")
public final class Optionals
extends Object

Deprecated.

The methods in this class are now implemented by the JDK, rendering this class useless. Use the corresponding methods offered by Optional instead.

Utility class for Optional.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Optionals.Either<T>	Deprecated. Call Optional.or(Supplier) on the Optional object instead.

Method Summary

Modifier and Type	Method	Description
static <T> Optionals.Either<T>	either(Optional<T> o)	Deprecated. Call Optional.or(Supplier) on the object instead.
static <T> void	ifPresentOrElse(Optional<T> optional, Consumer<? super T> action, Runnable emptyAction)	Deprecated. Use Optional.ifPresentOrElse(Consumer, Runnable) instead.
static <T> Stream<T>	stream(Optional<T> o)	Deprecated. Call Optional.stream() on the object instead.

Methods inherited from class java.lang.Object

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

Method Details

ifPresentOrElse

@Deprecated(since="2.4.0")
public static <T> void ifPresentOrElse(Optional<T> optional,
 Consumer<? super T> action,
 Runnable emptyAction)

Deprecated.

Use Optional.ifPresentOrElse(Consumer, Runnable) instead.

If a value is present in the given optional, performs the given action with the value, otherwise performs the given empty-based action.

Parameters:

optional - an Optional

action - the action to be performed, if a value is present

emptyAction - the empty-based action to be performed, if no value is present

Throws:

NullPointerException - if a value is present and the given action is null, or no value is present and the given empty-based action is null.

stream

@Deprecated(since="2.4.0")
public static <T> Stream<T> stream(Optional<T> o)

Deprecated.

Call Optional.stream() on the object instead.

If a value is present, returns a sequential Stream containing only that value, otherwise returns an empty Stream.

API Note: This method can be used to transform a Stream of optional elements to a Stream of present value elements:

 Stream<Optional<T>> os = .. 
 Stream<T> s = os.flatMap(Optional::stream)
 

Returns:

the optional value as a Stream

either

@Deprecated(since="2.4.0")
public static <T> Optionals.Either<T> either(Optional<T> o)

Deprecated.

Call Optional.or(Supplier) on the object instead.

Creates an Optionals.Either wrapper around the given Optional on which Optionals.Either.or(Supplier) can be called.