Package org.apache.flink.util.function

Interface FunctionWithException<T,​R,​E extends Throwable>

  • Type Parameters:
    T - The type of the argument to the function.
    R - The type of the result of the supplier.
    E - The type of Exceptions thrown by this function.
    Functional Interface:
    This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
    @Public
@FunctionalInterface
public interface FunctionWithException<T,​R,​E extends Throwable>
    A functional interface for a Function that may throw exceptions.

    • Method Detail

      • apply

        R apply​(T value)
 throws E extends Throwable
        Calls this function.
        Parameters:
        value - The argument to the function.
        Returns:
        The result of thus supplier.
        Throws:
        E - This function may throw an exception.
        E extends Throwable

      • unchecked

        static <A,​B> java.util.function.Function<A,​B> unchecked​(FunctionWithException<A,​B,​?> functionWithException)
        Convert at FunctionWithException into a Function.
        Type Parameters:
        A - input type
        B - output type
        Parameters:
        functionWithException - function with exception to convert into a function
        Returns:
        Function which throws all checked exception as an unchecked exception.