org.apache.lucene.queries.function.valuesource.SumFloatFunction Maven / Gradle / Ivy
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* 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,
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package org.apache.lucene.queries.function.valuesource;
import java.io.IOException;
import org.apache.lucene.queries.function.FunctionValues;
import org.apache.lucene.queries.function.ValueSource;
/** SumFloatFunction returns the sum of its components. */
public class SumFloatFunction extends MultiFloatFunction {
public SumFloatFunction(ValueSource[] sources) {
super(sources);
}
@Override
protected String name() {
return "sum";
}
@Override
protected float func(int doc, FunctionValues[] valsArr) throws IOException {
float val = 0.0f;
for (FunctionValues vals : valsArr) {
val += vals.floatVal(doc);
}
return val;
}
}