org.apache.hadoop.hive.ql.exec.vector.expressions.PosModLongToLong 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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* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.hive.ql.exec.vector.expressions;
import org.apache.hadoop.hive.ql.exec.vector.VectorExpressionDescriptor;
public class PosModLongToLong extends MathFuncLongToLong
implements ISetLongArg {
private static final long serialVersionUID = 1L;
private long divisor;
public PosModLongToLong(int inputCol, long scalarVal, int outputCol) {
super(inputCol, outputCol);
this.divisor = scalarVal;
}
public PosModLongToLong() {
super();
}
@Override
protected long func(long v) {
// return positive modulo
return ((v % divisor) + divisor) % divisor;
}
@Override
public void setArg(long arg) {
this.divisor = arg;
}
public void setDivisor(long v) {
this.divisor = v;
}
public long 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.INT_FAMILY)
.setInputExpressionTypes(
VectorExpressionDescriptor.InputExpressionType.COLUMN,
VectorExpressionDescriptor.InputExpressionType.SCALAR).build();
}
}