1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 19 package org.apache.giraph.aggregators; 20 21 import org.apache.hadoop.io.FloatWritable; 22 23 /** 24 * Aggregator for summing up float values. 25 */ 26 public class FloatSumAggregator extends BasicAggregator<FloatWritable> { 27 @Override 28 public void aggregate(FloatWritable value) { 29 getAggregatedValue().set(getAggregatedValue().get() + value.get()); 30 } 31 32 @Override 33 public FloatWritable createInitialValue() { 34 return new FloatWritable(0); 35 } 36 }