| /* |
| * 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.pig.test;
|
|
|
| import java.io.IOException;
|
|
|
| import org.apache.pig.data.DataAtom;
|
| import org.apache.pig.data.Datum;
|
| import org.apache.pig.data.Tuple;
|
| import org.apache.pig.ComparisonFunc;
|
|
|
| public class OrdDescNumeric extends ComparisonFunc {
|
| public int compare(Tuple t1, Tuple t2) {
|
| try {
|
| for (int i = 0; i < t1.arity(); i++) {
|
| Datum d1 = t1.getField(i);
|
| Datum d2 = t2.getField(i);
|
| int comp;
|
| if (d1 instanceof DataAtom) {
|
| comp = compare((DataAtom)d1, (DataAtom)d2);
|
| } else {
|
| comp = compare((Tuple)d1, (Tuple)d2);
|
| }
|
| if (comp != 0) {
|
| return comp;
|
| }
|
| }
|
| return 0;
|
| } catch (IOException e) {
|
| throw new RuntimeException("Error comparing keys in OrdDEscNumeric", e);
|
| }
|
| }
|
|
|
| private int compare(DataAtom a1, DataAtom a2) throws IOException {
|
| double num1 = a1.numval();
|
| double num2 = a2.numval();
|
| if (num2 > num1) {
|
| return 1;
|
| } else if (num2 < num1) {
|
| return -1;
|
| }
|
| return 0;
|
| }
|
| }
|
| */
|