是的，你可以用一个 BroadcastProcessFunction . 大致如下：

MapStateDescriptor<Void, Threshold> bcStateDescriptor = new MapStateDescriptor<>(
    "thresholds", Types.VOID, Threshold.class);

    DataStream<MyModel> myModelDataStream = // get input ...
    DataStream<Threshold> thresholds = // get input...
    BroadcastStream<Threshold> controlStream = thresholds.broadcast(bcStateDescriptor);

    DataStream<MyModel> result = myModelDataStream
      .connect(controlStream)
      .process(new MyFunction());

    public class MyFunction extends BroadcastProcessFunction<MyModel, Long, MyModel> {    
        @Override
        public void processBroadcastElement(Threshold newthreshold, Context ctx, Collector<MyModel> out) {
            BroadcastState<Void, Threshold> bcState = ctx.getBroadcastState(new MapStateDescriptor<>("thresholds", Types.VOID, Threshold.class));  
            bcState.put(null, newthreshold);
        }

        @Override
        public void processElement(MyModel model, Collector<MyModel> out) {
            Threshold threshold = ctx.getBroadcastState(new MapStateDescriptor<>("threshold", Types.VOID, Threshold.class)).get(null);
            if (threshold.value() == null || model.getData() > threshold.value()) {
                out.collect(model);
            }
        }
    }