@Documented
@Retention(value=RUNTIME)
@Target(value=TYPE)
public static @interface DoFn.UnboundedPerElement
DoFn
specifying that the DoFn
performs an unbounded amount of work per input element, so
applying it to a bounded PCollection
will produce an unbounded PCollection
. It
is an error to specify this on a non-splittable DoFn
.