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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,
* 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 GreaterThan.
*/
@Description(name = ">", value = "a _FUNC_ b - Returns TRUE if a is greater than b")
@VectorizedExpressions({LongColGreaterLongColumn.class, LongColGreaterDoubleColumn.class,
DoubleColGreaterLongColumn.class, DoubleColGreaterDoubleColumn.class,
LongColGreaterLongScalar.class, LongColGreaterDoubleScalar.class,
DoubleColGreaterLongScalar.class, DoubleColGreaterDoubleScalar.class,
LongScalarGreaterLongColumn.class, LongScalarGreaterDoubleColumn.class,
DoubleScalarGreaterLongColumn.class, DoubleScalarGreaterDoubleColumn.class,
StringGroupColGreaterStringGroupColumn.class, FilterStringGroupColGreaterStringGroupColumn.class,
StringGroupColGreaterStringScalar.class,
StringGroupColGreaterVarCharScalar.class, StringGroupColGreaterCharScalar.class,
StringScalarGreaterStringGroupColumn.class,
VarCharScalarGreaterStringGroupColumn.class, CharScalarGreaterStringGroupColumn.class,
FilterStringGroupColGreaterStringScalar.class, FilterStringScalarGreaterStringGroupColumn.class,
FilterStringGroupColGreaterVarCharScalar.class, FilterVarCharScalarGreaterStringGroupColumn.class,
FilterStringGroupColGreaterCharScalar.class, FilterCharScalarGreaterStringGroupColumn.class,
FilterLongColGreaterLongColumn.class, FilterLongColGreaterDoubleColumn.class,
FilterDoubleColGreaterLongColumn.class, FilterDoubleColGreaterDoubleColumn.class,
FilterLongColGreaterLongScalar.class, FilterLongColGreaterDoubleScalar.class,
FilterDoubleColGreaterLongScalar.class, FilterDoubleColGreaterDoubleScalar.class,
FilterLongScalarGreaterLongColumn.class, FilterLongScalarGreaterDoubleColumn.class,
FilterDoubleScalarGreaterLongColumn.class, FilterDoubleScalarGreaterDoubleColumn.class,
FilterDecimalColGreaterDecimalColumn.class, FilterDecimalColGreaterDecimalScalar.class,
FilterDecimalScalarGreaterDecimalColumn.class,
TimestampColGreaterTimestampScalar.class, TimestampScalarGreaterTimestampColumn.class,
FilterTimestampColGreaterTimestampScalar.class, FilterTimestampScalarGreaterTimestampColumn.class,
TimestampColGreaterLongScalar.class, LongScalarGreaterTimestampColumn.class,
FilterTimestampColGreaterLongScalar.class, FilterLongScalarGreaterTimestampColumn.class,
TimestampColGreaterDoubleScalar.class, DoubleScalarGreaterTimestampColumn.class,
FilterTimestampColGreaterDoubleScalar.class, FilterDoubleScalarGreaterTimestampColumn.class,
IntervalYearMonthScalarGreaterIntervalYearMonthColumn.class, FilterIntervalYearMonthScalarGreaterIntervalYearMonthColumn.class,
IntervalYearMonthColGreaterIntervalYearMonthScalar.class, FilterIntervalYearMonthColGreaterIntervalYearMonthScalar.class,
IntervalDayTimeScalarGreaterIntervalDayTimeColumn.class, FilterIntervalDayTimeScalarGreaterIntervalDayTimeColumn.class,
IntervalDayTimeColGreaterIntervalDayTimeScalar.class, FilterIntervalDayTimeColGreaterIntervalDayTimeScalar.class,
DateColGreaterDateScalar.class,FilterDateColGreaterDateScalar.class,
DateScalarGreaterDateColumn.class,FilterDateScalarGreaterDateColumn.class,
})
public class GenericUDFOPGreaterThan extends GenericUDFBaseCompare {
public GenericUDFOPGreaterThan(){
this.opName = "GREATER 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 GenericUDFOPLessThan();
}
}
