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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;
/**
* GenericUDF Class for operation EQUAL.
*/
@Description(name = "=", value = "a _FUNC_ b - Returns TRUE if a equals b and false otherwise")
@VectorizedExpressions({LongColEqualLongColumn.class, LongColEqualDoubleColumn.class,
DoubleColEqualLongColumn.class, DoubleColEqualDoubleColumn.class,
LongColEqualLongScalar.class, LongColEqualDoubleScalar.class,
DoubleColEqualLongScalar.class, DoubleColEqualDoubleScalar.class,
LongScalarEqualLongColumn.class, LongScalarEqualDoubleColumn.class,
DoubleScalarEqualLongColumn.class, DoubleScalarEqualDoubleColumn.class,
StringGroupColEqualStringGroupColumn.class, FilterStringGroupColEqualStringGroupColumn.class,
StringGroupColEqualStringScalar.class,
StringGroupColEqualVarCharScalar.class, StringGroupColEqualCharScalar.class,
StringScalarEqualStringGroupColumn.class,
VarCharScalarEqualStringGroupColumn.class, CharScalarEqualStringGroupColumn.class,
FilterStringGroupColEqualStringScalar.class, FilterStringScalarEqualStringGroupColumn.class,
FilterStringGroupColEqualVarCharScalar.class, FilterVarCharScalarEqualStringGroupColumn.class,
FilterStringGroupColEqualCharScalar.class, FilterCharScalarEqualStringGroupColumn.class,
FilterLongColEqualLongColumn.class, FilterLongColEqualDoubleColumn.class,
FilterDoubleColEqualLongColumn.class, FilterDoubleColEqualDoubleColumn.class,
FilterLongColEqualLongScalar.class, FilterLongColEqualDoubleScalar.class,
FilterDoubleColEqualLongScalar.class, FilterDoubleColEqualDoubleScalar.class,
FilterLongScalarEqualLongColumn.class, FilterLongScalarEqualDoubleColumn.class,
FilterDoubleScalarEqualLongColumn.class, FilterDoubleScalarEqualDoubleColumn.class,
FilterDecimalColEqualDecimalColumn.class, FilterDecimalColEqualDecimalScalar.class,
FilterDecimalScalarEqualDecimalColumn.class,
TimestampColEqualTimestampScalar.class, TimestampScalarEqualTimestampColumn.class,
FilterTimestampColEqualTimestampScalar.class, FilterTimestampScalarEqualTimestampColumn.class,
TimestampColEqualLongScalar.class, LongScalarEqualTimestampColumn.class,
FilterTimestampColEqualLongScalar.class, FilterLongScalarEqualTimestampColumn.class,
TimestampColEqualDoubleScalar.class, DoubleScalarEqualTimestampColumn.class,
FilterTimestampColEqualDoubleScalar.class, FilterDoubleScalarEqualTimestampColumn.class,
IntervalYearMonthScalarEqualIntervalYearMonthColumn.class, FilterIntervalYearMonthScalarEqualIntervalYearMonthColumn.class,
IntervalYearMonthColEqualIntervalYearMonthScalar.class, FilterIntervalYearMonthColEqualIntervalYearMonthScalar.class,
IntervalDayTimeScalarEqualIntervalDayTimeColumn.class, FilterIntervalDayTimeScalarEqualIntervalDayTimeColumn.class,
IntervalDayTimeColEqualIntervalDayTimeScalar.class, FilterIntervalDayTimeColEqualIntervalDayTimeScalar.class,
DateColEqualDateScalar.class,FilterDateColEqualDateScalar.class,
DateScalarEqualDateColumn.class,FilterDateScalarEqualDateColumn.class,
})
public class GenericUDFOPEqual extends GenericUDFBaseCompare {
public GenericUDFOPEqual(){
this.opName = "EQUAL";
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:
result.set(soi0.getPrimitiveWritableObject(o0).equals(
soi1.getPrimitiveWritableObject(o1)));
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:
result.set(boi0.get(o0) == boi1.get(o1));
break;
case COMPARE_STRING:
result.set(soi0.getPrimitiveJavaObject(o0).equals(
soi1.getPrimitiveJavaObject(o1)));
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;
}
}
