public int getWindowSize() {
    return windowSize;
  }
Constructor. You need to specify the number of rows in each sliding size window (except for the
last window). The sliding step will be set to the same as the window size.

@param windowSize the number of rows in each sliding size window (0 < windowSize)
iotdb-api/udf-api/src/main/java/org/apache/iotdb/udf/api/customizer/strategy/SlidingSizeWindowAccessStrategy.java