Interface ExceptionalFunction

src/org/apache/pig/ExceptionalFunction.java:28–38

An interface that captures a unit of work against an item where an exception might be thrown. @param The argument type for the function. @param The return type for the function. @param The exception type that the function throws.

 *
 */
public interface ExceptionalFunction<S, T, E extends Exception> {

    /**
     * Performs a unit of work on item, possibly throwing {@code E} in the process.
     *
     * @param item The item to perform work against.
     * @return The result of the computation.
     * @throws E if there was a problem performing the work.
     */
    public T apply(S item) throws E;
}