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
  • Method Details

    • 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
    • fromFunction

      static <I,​ O> CheckedFunction<I,​O,​RuntimeException> fromFunction​(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