Interface CheckedFunction<I,​O,​E extends Exception>

  • Type Parameters:
    I - the input parameter type
    O - the output parameter type
    E - the type thrown
    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 CheckedFunction<I,​O,​E extends Exception>
    A function with one input and one output which may throw a checked exception.
    Since:
    4.0.0
    • Method Detail

      • apply

        O apply​(I one)
         throws E extends Exception
        Perform the action.
        Parameters:
        one - parameter
        Returns:
        return value
        Throws:
        E - thrown when defined by types accepting this function
        E extends Exception
        Since:
        4.0.0
      • from

        static <I,​O> CheckedFunction<I,​O,​RuntimeExceptionfrom​(Function<I,​@NonNull O> func)
        Convert a JDK Function into its checked variant.
        Type Parameters:
        I - parameter type
        O - return type
        Parameters:
        func - the function
        Returns:
        the function as a checked function
        Since:
        4.0.0