Interface ThrowingFunction<T,​R,​E extends java.lang.Exception>

  • Type Parameters:
    T - the type of the input to the function
    R - the type of the result of the function
    E - the type of the thrown checked exception
    All Known Subinterfaces:
    ThrowingUnaryOperator<T,​E>
    Functional Interface:
    This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

    @FunctionalInterface
    public interface ThrowingFunction<T,​R,​E extends java.lang.Exception>
    Represents a function that accepts one argument and returns a value; Function might throw a checked exception instance.
    • Method Detail

      • apply

        R apply​(T arg)
         throws E extends java.lang.Exception
        Throws:
        E extends java.lang.Exception
      • lifted

        static <T,​R> java.util.function.Function<T,​java.util.Optional<R>> lifted​(ThrowingFunction<T,​R,​?> f)
        Returns:
        a Function that returns the result of the given function as an Optional instance. In case of a failure, empty Optional is returned
      • unchecked

        static <T,​R> java.util.function.Function<T,​R> unchecked​(ThrowingFunction<T,​R,​?> f)
      • sneaky

        static <T1,​R> java.util.function.Function<T1,​R> sneaky​(ThrowingFunction<? super T1,​? extends R,​?> function)
      • lift

        default java.util.function.Function<T,​java.util.Optional<R>> lift()
      • uncheck

        default java.util.function.Function<T,​R> uncheck()