| #!/usr/bin/env python |
| # -*- encoding: utf-8 -*- |
| |
| # Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF licenses this file |
| # to you under the Apache License, Version 2.0 (the |
| # "License"); you may not use this file except in compliance |
| # with the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, |
| # software distributed under the License is distributed on an |
| # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| # KIND, either express or implied. See the License for the |
| # specific language governing permissions and limitations |
| # under the License. |
| |
| '''keyedwindow.py: module for defining KeyedWindow''' |
| |
| from heronpy.streamlet.window import Window |
| |
| class KeyedWindow(object): |
| """Transformation depending on Windowing pass on the window/key information |
| using this class |
| """ |
| def __init__(self, key, window): |
| if not isinstance(window, Window): |
| raise RuntimeError("Window of KeyedWindow has to be of type Window") |
| self._key = key |
| self._window = window |
| |
| def __repr__(self): |
| return 'KeyedWindow {key: %s, window: %s}' % (self._key, self._window) |