Package org.dmfs.jems2.optional

Class Restrained<T>

  • All Implemented Interfaces:
    Optional<T>
    public final class Restrained<T>
extends java.lang.Object
implements Optional<T>
    Optional decorator restrains the presence of another Optional with a specific (independent) condition.

    • Constructor Summary

      Constructors 
      Constructor Description
      Restrained​(Single<java.lang.Boolean> condition, Optional<T> delegate)  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      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 Detail

      • Restrained

        public Restrained​(Single<java.lang.Boolean> condition,
                  Optional<T> delegate)

    • Method Detail

      • 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>