com.twitter.heron.streamlet.KeyedWindow Maven / Gradle / Ivy
// Copyright 2017 Twitter. All rights reserved.
//
// Licensed 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.
package com.twitter.heron.streamlet;
import java.io.Serializable;
/**
* Transformation depending on Windowing pass on the window/key information
* using this class
*/
public class KeyedWindow implements Serializable {
private static final long serialVersionUID = 4193319775040181971L;
private T key;
private Window window;
KeyedWindow() {
// nothing really
}
public KeyedWindow(T key, Window window) {
this.key = key;
this.window = window;
}
public T getKey() {
return key;
}
public Window getWindow() {
return window;
}
@Override
public String toString() {
return "{ Key: " + String.valueOf(key) + " Window: " + window.toString() + " }";
}
}