Package org.dmfs.jems2.optional

Class Restrained<T>

java.lang.Object

org.dmfs.jems2.optional.Restrained<T>

All Implemented Interfaces:

Optional<T>

public final class Restrained<T>
extends Object
implements Optional<T>

Optional decorator restrains the presence of another Optional with a specific (independent) condition.

Constructor Summary

Constructors

Constructor	Description
Restrained(Single<Boolean> condition, Optional<T> delegate)

Method Summary

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

Methods inherited from class java.lang.Object

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

Constructor Details

Restrained

public Restrained(Single<Boolean> condition,
 Optional<T> delegate)

Method Details

isPresent

public boolean isPresent()

Description copied from interface: Optional

Returns whether the optional value is present.

Specified by:

isPresent in interface Optional<T>

value

public T value()

Description copied from interface: Optional

Returns the optional value.

Specified by:

value in interface Optional<T>