1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
|
/*
* 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 spark.util
/**
* A tuple of 2 elements. This can be used as an alternative to Scala's Tuple2 when we want to
* minimize object allocation.
*
* @param _1 Element 1 of this MutablePair
* @param _2 Element 2 of this MutablePair
*/
case class MutablePair[@specialized(Int, Long, Double, Char, Boolean/*, AnyRef*/) T1,
@specialized(Int, Long, Double, Char, Boolean/*, AnyRef*/) T2]
(var _1: T1, var _2: T2)
extends Product2[T1, T2]
{
override def toString = "(" + _1 + "," + _2 + ")"
override def canEqual(that: Any): Boolean = that.isInstanceOf[MutablePair[_,_]]
}
|