/**
* Triggers the window computation if the provided {@link TriggerResult} requires so. The caller
* must ensure that the correct key is set in the state backend and the context object.
*/
@SuppressWarnings("unchecked")
private void fireOrContinue(
TriggerResult triggerResult, W window, AppendingState<IN, ACC> windowState) throws Exception {
if (!triggerResult.isFire()) {
return;
}
timestampedCollector.setAbsoluteTimestamp(window.maxTimestamp());
ACC contents = windowState.get();
userFunction.apply(context.key, context.window, contents, timestampedCollector);
}
protected void emitWindow(Context context) throws Exception {
timestampedCollector.setTimestamp(context.window.maxTimestamp());
if (context.windowBuffer.size() > 0) {
setKeyContextElement(context.windowBuffer.getElements().iterator().next());
userFunction.apply(
context.key,
context.window,
context.windowBuffer.getUnpackedElements(),
timestampedCollector);
}
}