@Documented @Retention(value=RUNTIME) @Target(value=METHOD) @Experimental(value=TIMERS) public static @interface DoFn.OnTimer
See the javadoc for DoFn.TimerId for use in a full example.
 
The method annotated with @OnTimer may have parameters according to the same logic
 as DoFn.ProcessElement, but limited to the BoundedWindow, State subclasses,
 and Timer. State and timer parameters must be annotated with their DoFn.StateId and
 DoFn.TimerId respectively.
| Modifier and Type | Required Element and Description | 
|---|---|
| java.lang.String | valueThe timer ID. |