thank you!
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Hash codes should try to avoid collisions of objects that are not
equal. Integer overflowing is not an issue by itself
On Wed, Sep 21, 2016 at 10:49 PM, WangJianfei
wrote:
> Than you very much sir! but what i want to know is whether the hashcode
> overflow will make a trouble. thank you!
>
>
>
>
Than you very much sir! but what i want to know is whether the hashcode
overflow will make a trouble. thank you!
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Sent from the Apache Spark
sday, September 21, 2016 15:12
> Subject: Re: What's the use of RangePartitioner.hashCode
> To: WangJianfei
> Cc: dev
>
>
>
> Hi,
> It is used jointly with a custom implementation of the `equals`
> method. In Scala, you can override the `equals` method to change th
11/07/java-equals-and-hashcode-contract/
_
From: Jakob Odersky
Sent: Wednesday, September 21, 2016 15:12
Subject: Re: What's the use of RangePartitioner.hashCode
To: WangJianfei
Cc: dev
Hi,
It is used jointly with a custom implementation of t
Hi,
It is used jointly with a custom implementation of the `equals`
method. In Scala, you can override the `equals` method to change the
behaviour of `==` comparison. On example of this would be to compare
classes based on their parameter values (i.e. what case classes do).
Partitioners aren't case
