heronpy/streamlet/window.py

#!/usr/bin/env python
# -*- encoding: utf-8 -*-

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'''window.py: module for defining Window'''

class Window(object):
  """Window is a container containing information about a particular window.
     Transformations that depend on Windowing, pass the window information
     inside their streamlets using this container.
  """
  def __init__(self, start_time, end_time):
    self._start_time = start_time
    self._end_time = end_time

  def __repr__(self):
    return 'Window {start_time: %s, end_time: %s}' % (self._start_time, self._end_time)