| /* |
| * 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. |
| */ |
| |
| package org.apache.iotdb.db.engine.trigger.example; |
| |
| import org.apache.iotdb.commons.path.PartialPath; |
| import org.apache.iotdb.db.engine.trigger.api.Trigger; |
| import org.apache.iotdb.trigger.api.TriggerAttributes; |
| import org.apache.iotdb.tsfile.exception.NotImplementedException; |
| import org.apache.iotdb.tsfile.utils.Binary; |
| |
| public class Accumulator implements Trigger { |
| |
| public static final int BASE = 7713; |
| |
| private double accumulator = 0; |
| private boolean isStopped = true; |
| |
| @Override |
| public void onCreate(TriggerAttributes attributes) { |
| accumulator = BASE; |
| isStopped = false; |
| } |
| |
| @Override |
| public void onStart() { |
| isStopped = false; |
| } |
| |
| @Override |
| public void onStop() { |
| isStopped = true; |
| } |
| |
| @Override |
| public Integer fire(long timestamp, Integer value, PartialPath path) { |
| accumulator += value; |
| return value; |
| } |
| |
| @Override |
| public Long fire(long timestamp, Long value, PartialPath path) { |
| accumulator += value; |
| return value; |
| } |
| |
| @Override |
| public Float fire(long timestamp, Float value, PartialPath path) { |
| accumulator += value; |
| return value; |
| } |
| |
| @Override |
| public Double fire(long timestamp, Double value, PartialPath path) { |
| accumulator += value; |
| return value; |
| } |
| |
| @Override |
| public Boolean fire(long timestamp, Boolean value, PartialPath path) { |
| throw new NotImplementedException(); |
| } |
| |
| @Override |
| public Binary fire(long timestamp, Binary value, PartialPath path) { |
| throw new NotImplementedException(); |
| } |
| |
| public void setAccumulator(double accumulator) { |
| this.accumulator = accumulator; |
| } |
| |
| public double getAccumulator() { |
| return accumulator; |
| } |
| |
| public boolean isStopped() { |
| return isStopped; |
| } |
| } |