/**
* 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.hadoop.hive.ql.exec.vector.expressions;
import java.sql.Timestamp;
import org.apache.hadoop.hive.ql.exec.vector.DecimalColumnVector;
import org.apache.hadoop.hive.ql.exec.vector.TimestampColumnVector;
import org.apache.hadoop.hive.ql.util.TimestampUtils;
import org.apache.hadoop.hive.serde2.io.HiveDecimalWritable;
/**
* Type cast decimal to timestamp. The decimal value is interpreted
* as NNNN.DDDDDDDDD where NNNN is a number of seconds and DDDDDDDDD
* is a number of nano-seconds.
*/
public class CastDecimalToTimestamp extends FuncDecimalToTimestamp {
private static final long serialVersionUID = 1L;
private HiveDecimalWritable scratchHiveDecimalWritable1;
private HiveDecimalWritable scratchHiveDecimalWritable2;
public CastDecimalToTimestamp(int inputColumn, int outputColumn) {
super(inputColumn, outputColumn);
scratchHiveDecimalWritable1 = new HiveDecimalWritable();
scratchHiveDecimalWritable2 = new HiveDecimalWritable();
}
public CastDecimalToTimestamp() {
}
@Override
protected void func(TimestampColumnVector outV, DecimalColumnVector inV, int i) {
Timestamp timestamp =
TimestampUtils.decimalToTimestamp(
inV.vector[i],
scratchHiveDecimalWritable1, scratchHiveDecimalWritable2);
outV.set(i, timestamp);
}
}