org.apache.solr.search.function.PowFloatFunction Maven / Gradle / Ivy
/**
* 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.solr.search.function;
import org.apache.lucene.index.IndexReader;
import java.io.IOException;
/** Function to raise the base "a" to the power "b"
*/
public class PowFloatFunction extends DualFloatFunction {
/**
* @param a the base.
* @param b the exponent.
*/
public PowFloatFunction(ValueSource a, ValueSource b) {
super(a,b);
}
protected String name() {
return "pow";
}
protected float func(int doc, DocValues aVals, DocValues bVals) {
return (float)Math.pow(aVals.floatVal(doc), bVals.floatVal(doc));
}
}