[jira] Resolved: (MATH-188) Make Complex and Fraction classes immutable and thus thread-safe

["Phil Steitz (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MATH-188?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Phil Steitz resolved MATH-188.
------------------------------

    Resolution: Fixed

Patch and Complex deprecation applied in r 620373.
Thanks!

> Make Complex and Fraction classes immutable and thus thread-safe
> ----------------------------------------------------------------
>
>                 Key: MATH-188
>                 URL: https://issues.apache.org/jira/browse/MATH-188
>             Project: Commons Math
>          Issue Type: Improvement
>            Reporter: Sebb
>             Fix For: 1.2
>
>         Attachments: Fraction.patch
>
>
> There are many classes with instance fields that could be made final.
> Two in particular seem like ideal candidates:
> Complex - fields: real, imaginary
> Fraction - fields: numerator, denominator (the private reduce() method also needs to be inlined)
> As far as I can tell, making the above changes makes the classes immutable and therefore threadsafe.

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