Java Code Examples for org.apache.flink.streaming.api.windowing.triggers.TriggerResult#CONTINUE

@Override
    public TriggerResult onElement(WordEvent element, long timestamp, TimeWindow window, TriggerContext ctx) throws Exception {
        log.info("======onElement====window start = {}, window end = {}", window.getStart(), window.getEnd());

        return TriggerResult.CONTINUE;
//        ReducingState<Long> fireTimestamp = ctx.getPartitionedState(stateDesc);
//
//        timestamp = ctx.getCurrentProcessingTime();
//
//        if (fireTimestamp.get() == null) {
//            long start = timestamp - (timestamp % interval);
//            long nextFireTimestamp = start + interval;
//
//            ctx.registerProcessingTimeTimer(nextFireTimestamp);
//
//            fireTimestamp.add(nextFireTimestamp);
//            return TriggerResult.CONTINUE;
//        }
//        return TriggerResult.CONTINUE;

    }
 

@Override
public TriggerResult onElement(SensorReading r, long ts, TimeWindow w, TriggerContext ctx) throws Exception {
    // firstSeen will be false if not set yet
    ValueState<Boolean> firstSeen = ctx.getPartitionedState(
        new ValueStateDescriptor<>("firstSeen", Types.BOOLEAN));

    // register initial timer only for first element
    if (firstSeen.value() == null) {
        // compute time for next early firing by rounding watermark to second
        long t = ctx.getCurrentWatermark() + (1000 - (ctx.getCurrentWatermark() % 1000));
        ctx.registerEventTimeTimer(t);
        // register timer for the end of the window
        ctx.registerEventTimeTimer(w.getEnd());
        firstSeen.update(true);
    }
    // Continue. Do not evaluate window per element
    return TriggerResult.CONTINUE;
}
 

@Override
    public TriggerResult onElement(WordEvent element, long timestamp, TimeWindow window, TriggerContext ctx) throws Exception {
        log.info("======onElement====window start = {}, window end = {}", window.getStart(), window.getEnd());

        return TriggerResult.CONTINUE;
//        ReducingState<Long> fireTimestamp = ctx.getPartitionedState(stateDesc);
//
//        timestamp = ctx.getCurrentProcessingTime();
//
//        if (fireTimestamp.get() == null) {
//            long start = timestamp - (timestamp % interval);
//            long nextFireTimestamp = start + interval;
//
//            ctx.registerProcessingTimeTimer(nextFireTimestamp);
//
//            fireTimestamp.add(nextFireTimestamp);
//            return TriggerResult.CONTINUE;
//        }
//        return TriggerResult.CONTINUE;

    }
 

@Override
public TriggerResult onElement(Object element, long timestamp, TimeWindow window, TriggerContext ctx) throws Exception {
	if (window.maxTimestamp() <= ctx.getCurrentWatermark()) {
		// if the watermark is already past the window fire immediately
		return TriggerResult.FIRE;
	} else {
		ctx.registerEventTimeTimer(window.maxTimestamp());
		return TriggerResult.CONTINUE;
	}
}
 

@Override
public TriggerResult onElement(ConnectedCarEvent event, long timestamp, GlobalWindow window, TriggerContext context) throws Exception {

	// if this is a stop event, set a timer
	if (event.speed == 0.0) {
		context.registerEventTimeTimer(event.timestamp);
	}

	return TriggerResult.CONTINUE;
}
 

@Override
public TriggerResult onElement(Object element, long timestamp, TimeWindow window, TriggerContext ctx) throws Exception {
  ctx.registerEventTimeTimer(window.maxTimestamp());
  // register system timer only for the first time
  OperatorState<Boolean> firstTimerSet = ctx.getKeyValueState("firstTimerSet", Boolean.class, false);
  if (!firstTimerSet.value()) {
    ctx.registerProcessingTimeTimer(System.currentTimeMillis() + 1000L);
    firstTimerSet.update(true);
  }
  return TriggerResult.CONTINUE;
}
 

@Override
public TriggerResult onElement(Object element, long timestamp, TimeWindow window, TriggerContext ctx) throws Exception {
	if (window.maxTimestamp() <= ctx.getCurrentWatermark()) {
		// if the watermark is already past the window fire immediately
		return TriggerResult.FIRE;
	} else {
		ctx.registerEventTimeTimer(window.maxTimestamp());
		return TriggerResult.CONTINUE;
	}
}
 

@Override
public TriggerResult onElement(Object element, long timestamp, GlobalWindow window, TriggerContext ctx) {
	return TriggerResult.CONTINUE;
}
 

@Override
public TriggerResult onElement(Object element, long timestamp, GlobalWindow window, TriggerContext ctx) {
	return TriggerResult.CONTINUE;
}
 

@Override
public TriggerResult onProcessingTime(long time, GlobalWindow window, TriggerContext ctx) {
	return TriggerResult.CONTINUE;
}
 

@Override
public TriggerResult onProcessingTime(long time, GlobalWindow window, TriggerContext ctx) {
	return TriggerResult.CONTINUE;
}
 

@Override
public TriggerResult onProcessingTime(long time, TimeWindow window, TriggerContext ctx) throws Exception {
	return TriggerResult.CONTINUE;
}
 

@Override
public TriggerResult onEventTime(long time, TimeWindow window, TriggerContext ctx) {
	return time == window.maxTimestamp() || time == window.maxTimestamp() + cleanupTime ?
		TriggerResult.FIRE_AND_PURGE :
		TriggerResult.CONTINUE;
}
 

@Override
public TriggerResult onProcessingTime(long time, GlobalWindow window, TriggerContext ctx) {
	return TriggerResult.CONTINUE;
}
 

@Override
public TriggerResult onEventTime(long time, GlobalWindow window, TriggerContext ctx) {
	return TriggerResult.CONTINUE;
}
 

@Override
public TriggerResult onElement(Object element, long timestamp, GlobalWindow window, TriggerContext ctx) {
	return TriggerResult.CONTINUE;
}
 

@Override
public TriggerResult onProcessingTime(long time, TimeWindow window, TriggerContext ctx) throws Exception {
	return TriggerResult.CONTINUE;
}
 

@Override
public TriggerResult onEventTime(long time, TimeWindow window, TriggerContext ctx) {
	return time == window.maxTimestamp() || time == window.maxTimestamp() + cleanupTime ?
		TriggerResult.FIRE_AND_PURGE :
		TriggerResult.CONTINUE;
}
 

@Override
public TriggerResult onProcessingTime(long time, GlobalWindow window, TriggerContext ctx) {
	return TriggerResult.CONTINUE;
}
 

@Override
public TriggerResult onEventTime(long time, GlobalWindow window, TriggerContext ctx) {
	return TriggerResult.CONTINUE;
}