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
who can give me an example of the use of RangePartitioner.hashCode, thank
you!
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