org.apache.hadoop.hive.ql.exec.vector.expressions.PosModDoubleToDouble Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one
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* 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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* See the License for the specific language governing permissions and
* limitations under the License.
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package org.apache.hadoop.hive.ql.exec.vector.expressions;
import org.apache.hadoop.hive.ql.exec.vector.VectorExpressionDescriptor;
public class PosModDoubleToDouble extends MathFuncDoubleToDouble
implements ISetDoubleArg {
private static final long serialVersionUID = 1L;
private double divisor;
public PosModDoubleToDouble(int inputCol, double scalarVal, int outputCol) {
super(inputCol, outputCol);
this.divisor = scalarVal;
}
public PosModDoubleToDouble() {
super();
}
@Override
protected double func(double v) {
// return positive modulo
return ((v % divisor) + divisor) % divisor;
}
@Override
public void setArg(double arg) {
this.divisor = arg;
}
public void setDivisor(double v) {
this.divisor = v;
}
public double getDivisor() {
return divisor;
}
@Override
public VectorExpressionDescriptor.Descriptor getDescriptor() {
return (new VectorExpressionDescriptor.Builder())
.setMode(
VectorExpressionDescriptor.Mode.PROJECTION)
.setNumArguments(2)
.setArgumentTypes(
VectorExpressionDescriptor.ArgumentType.INT_FAMILY,
VectorExpressionDescriptor.ArgumentType.FLOAT_FAMILY)
.setInputExpressionTypes(
VectorExpressionDescriptor.InputExpressionType.COLUMN,
VectorExpressionDescriptor.InputExpressionType.SCALAR).build();
}
}