org.dmfs.jems.optional.composite

Class Zipped<Left,Right,Result>

java.lang.Object

org.dmfs.jems.optional.composite.Zipped<Left,Right,Result>

All Implemented Interfaces:

Optional<Result>

public final class Zipped<Left,Right,Result>
extends java.lang.Object
implements Optional<Result>

An Optional which combines two other Optionals with a BiFunction if they are both present and is absent otherwise

Constructor Summary

Constructors

Constructor and Description
Zipped(Optional<Left> left, Optional<Right> right, BiFunction<Left,Right,Result> function)

Method Summary

Modifier and Type	Method and Description
boolean	isPresent() Returns whether the optional value is present.
Result	value() Returns the optional value.

Methods inherited from class java.lang.Object

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

Constructor Detail

Zipped

public Zipped(Optional<Left> left,
              Optional<Right> right,
              BiFunction<Left,Right,Result> function)

Method Detail

isPresent

public boolean isPresent()

Description copied from interface: Optional

Returns whether the optional value is present.

Specified by:

isPresent in interface Optional<Result>

Returns:

true if the value is present, false otherwise.

value

public Result value()
             throws java.util.NoSuchElementException

Description copied from interface: Optional

Returns the optional value.

Specified by:

value in interface Optional<Result>

Returns:

The value.

Throws:

java.util.NoSuchElementException - if the optional value is not present.