[jira] [Commented] (MATH-1348) Provide an adaptor that is a subclass of "java.util.Random"

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

    [ https://issues.apache.org/jira/browse/MATH-1348?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15213715#comment-15213715 ] 

Gilles commented on MATH-1348:
------------------------------

Available on branch "feature-MATH-1158".

This feature is broken (see Javadoc), as this class only exists to serve as a compatible _interface_.
Since {{Random}} is a class, not an interface, inheritance was necessary; but no inherited implementation is actually used: neither the "core" RNG (method {{next(int bits)}}) nor any of the methods that create other Java types from the generated bits.

> Provide an adaptor that is a subclass of "java.util.Random"
> -----------------------------------------------------------
>
>                 Key: MATH-1348
>                 URL: https://issues.apache.org/jira/browse/MATH-1348
>             Project: Commons Math
>          Issue Type: Sub-task
>            Reporter: Gilles
>            Assignee: Gilles
>            Priority: Minor
>              Labels: api, compatibility
>             Fix For: 4.0
>
>
> Some utilities of the JDK require a {{java.util.Random}} as an argument (e.g. method "shuffle" in {{java.util.Collections}}.
> In order to use such utilities but with the actual RNG delegated to alternative algorithms (i.e. those provided in CM), we have to extend {{Random}}, overriding all the generation methods.
> The adaptor will be similar to {{o.a.c.m.random.RandomAdaptor}} but for {{o.a.c.m.rng.UniformRandomProvider}} instead of {{o.a.c.m.random.RandomGenerator}}.



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