Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance. Project price only 1 $
You can buy this project and download/modify it how often you want.
/**
* 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.udf.generic;
import org.apache.hadoop.hive.ql.exec.Description;
import org.apache.hadoop.hive.ql.exec.vector.VectorizedExpressions;
import org.apache.hadoop.hive.ql.exec.vector.expressions.gen.*;
import org.apache.hadoop.hive.ql.metadata.HiveException;
import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorUtils;
import org.apache.hadoop.io.Text;
/**
* GenericUDF Class for operation LessThan.
*/
@Description(name = "<", value = "a _FUNC_ b - Returns TRUE if a is less than b")
@VectorizedExpressions({LongColLessLongColumn.class, LongColLessDoubleColumn.class,
DoubleColLessLongColumn.class, DoubleColLessDoubleColumn.class,
LongColLessLongScalar.class, LongColLessDoubleScalar.class,
DoubleColLessLongScalar.class, DoubleColLessDoubleScalar.class,
LongScalarLessLongColumn.class, LongScalarLessDoubleColumn.class,
DoubleScalarLessLongColumn.class, DoubleScalarLessDoubleColumn.class,
StringGroupColLessStringGroupColumn.class, FilterStringGroupColLessStringGroupColumn.class,
StringGroupColLessStringScalar.class,
StringGroupColLessVarCharScalar.class, StringGroupColLessCharScalar.class,
StringScalarLessStringGroupColumn.class,
VarCharScalarLessStringGroupColumn.class, CharScalarLessStringGroupColumn.class,
FilterStringGroupColLessStringScalar.class, FilterStringScalarLessStringGroupColumn.class,
FilterStringGroupColLessVarCharScalar.class, FilterVarCharScalarLessStringGroupColumn.class,
FilterStringGroupColLessCharScalar.class, FilterCharScalarLessStringGroupColumn.class,
FilterLongColLessLongColumn.class, FilterLongColLessDoubleColumn.class,
FilterDoubleColLessLongColumn.class, FilterDoubleColLessDoubleColumn.class,
FilterLongColLessLongScalar.class, FilterLongColLessDoubleScalar.class,
FilterDoubleColLessLongScalar.class, FilterDoubleColLessDoubleScalar.class,
FilterLongScalarLessLongColumn.class, FilterLongScalarLessDoubleColumn.class,
FilterDoubleScalarLessLongColumn.class, FilterDoubleScalarLessDoubleColumn.class,
FilterDecimalColLessDecimalColumn.class, FilterDecimalColLessDecimalScalar.class,
FilterDecimalScalarLessDecimalColumn.class,
TimestampColLessTimestampScalar.class, TimestampScalarLessTimestampColumn.class,
FilterTimestampColLessTimestampScalar.class, FilterTimestampScalarLessTimestampColumn.class,
TimestampColLessLongScalar.class, LongScalarLessTimestampColumn.class,
FilterTimestampColLessLongScalar.class, FilterLongScalarLessTimestampColumn.class,
TimestampColLessDoubleScalar.class, DoubleScalarLessTimestampColumn.class,
FilterTimestampColLessDoubleScalar.class, FilterDoubleScalarLessTimestampColumn.class,
IntervalYearMonthScalarLessIntervalYearMonthColumn.class, FilterIntervalYearMonthScalarLessIntervalYearMonthColumn.class,
IntervalYearMonthColLessIntervalYearMonthScalar.class, FilterIntervalYearMonthColLessIntervalYearMonthScalar.class,
IntervalDayTimeScalarLessIntervalDayTimeColumn.class, FilterIntervalDayTimeScalarLessIntervalDayTimeColumn.class,
IntervalDayTimeColLessIntervalDayTimeScalar.class, FilterIntervalDayTimeColLessIntervalDayTimeScalar.class,
DateColLessDateScalar.class,FilterDateColLessDateScalar.class,
DateScalarLessDateColumn.class,FilterDateScalarLessDateColumn.class,
})
public class GenericUDFOPLessThan extends GenericUDFBaseCompare {
public GenericUDFOPLessThan(){
this.opName = "LESS THAN";
this.opDisplayName = "<";
}
@Override
public Object evaluate(DeferredObject[] arguments) throws HiveException {
Object o0,o1;
o0 = arguments[0].get();
if (o0 == null) {
return null;
}
o1 = arguments[1].get();
if (o1 == null) {
return null;
}
switch(compareType) {
case COMPARE_TEXT:
Text t0, t1;
t0 = soi0.getPrimitiveWritableObject(o0);
t1 = soi1.getPrimitiveWritableObject(o1);
result.set(t0.compareTo(t1) < 0);
break;
case COMPARE_INT:
result.set(ioi0.get(o0) < ioi1.get(o1));
break;
case COMPARE_LONG:
result.set(loi0.get(o0) < loi1.get(o1));
break;
case COMPARE_BYTE:
result.set(byoi0.get(o0) < byoi1.get(o1));
break;
case COMPARE_BOOL:
boolean b0 = boi0.get(o0);
boolean b1 = boi1.get(o1);
result.set(!b0 && b1);
break;
case COMPARE_STRING:
String s0, s1;
s0 = soi0.getPrimitiveJavaObject(o0);
s1 = soi1.getPrimitiveJavaObject(o1);
result.set(s0.compareTo(s1) < 0);
break;
case SAME_TYPE:
result.set(ObjectInspectorUtils.compare(
o0, argumentOIs[0], o1, argumentOIs[1]) < 0);
break;
default:
Object converted_o0 = converter0.convert(o0);
if (converted_o0 == null) {
return null;
}
Object converted_o1 = converter1.convert(o1);
if (converted_o1 == null) {
return null;
}
result.set(ObjectInspectorUtils.compare(
converted_o0, compareOI,
converted_o1, compareOI) < 0);
}
return result;
}
@Override
public GenericUDF flip() {
return new GenericUDFOPGreaterThan();
}
}
