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Fix serialization of MutablePair. Also provide an interface for easy updating. #141

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Fix serialization of MutablePair. Also provide an interface for easy updating. #141

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8bfd973
Fix serialization of MutablePair. Also provide an interface for easy…
marmbrus Mar 14, 2014
f5c4783
Change function name to update
marmbrus Mar 14, 2014
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12 changes: 11 additions & 1 deletion core/src/main/scala/org/apache/spark/util/MutablePair.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -25,10 +25,20 @@ package org.apache.spark.util
* @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]
@specialized(Int, Long, Double, Char, Boolean/*, AnyRef*/) T2]
(var _1: T1, var _2: T2)
extends Product2[T1, T2]
{
/** No-arg constructor for serialization */
def this() = this(null.asInstanceOf[T1], null.asInstanceOf[T2])

/** Updates this pair with new values and returns itself */
def update(n1: T1, n2: T2): MutablePair[T1, T2] = {
_1 = n1
_2 = n2
this
}

override def toString = "(" + _1 + "," + _2 + ")"

override def canEqual(that: Any): Boolean = that.isInstanceOf[MutablePair[_,_]]
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