Package org.mapfish.print

Class OptionalUtils

  • public final class OptionalUtils
extends java.lang.Object
    Utilities for Java's Optional class.

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static <T> java.util.Optional<T> or​(java.util.function.Supplier<java.util.Optional<? extends T>>... optionals)
      Return the first optional to be defined.
      static <T> java.util.Optional<T> or​(java.util.Optional<T> a, java.util.Optional<? extends T> b)
      Return the first optional to be defined.

      • Methods inherited from class java.lang.Object

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

    • Method Detail

      • or

        public static <T> java.util.Optional<T> or​(java.util.Optional<T> a,
                                           java.util.Optional<? extends T> b)
        Return the first optional to be defined.
        Type Parameters:
        T - The type
        Parameters:
        a - The first
        b - The second
        Returns:
        a or b or empty

      • or

        @SafeVarargs
public static <T> java.util.Optional<T> or​(java.util.function.Supplier<java.util.Optional<? extends T>>... optionals)
        Return the first optional to be defined.
        Type Parameters:
        T - The type
        Parameters:
        optionals - the lambdas returning the optionals
        Returns:
        the first non-empty or empty