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From "Sebb (JIRA)" <j...@apache.org>
Subject [jira] Created: (MATH-188) Make Complex and Fraction classes immutable and thus thread-safe
Date Mon, 04 Feb 2008 02:41:07 GMT
Make Complex and Fraction classes immutable and thus thread-safe
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                 Key: MATH-188
                 URL: https://issues.apache.org/jira/browse/MATH-188
             Project: Commons Math
          Issue Type: Improvement
            Reporter: Sebb


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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