[jira] [Updated] (MATH-656) "isSparse()" method vs marker interfaces

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

     [ https://issues.apache.org/jira/browse/MATH-656?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gilles updated MATH-656:
------------------------

    Fix Version/s:     (was: 3.0)
                   4.0

Postponing to next major version, as it is unlikely that a new discussion on these API issues will occur before the release of 3.0.

                
> "isSparse()" method vs marker interfaces
> ----------------------------------------
>
>                 Key: MATH-656
>                 URL: https://issues.apache.org/jira/browse/MATH-656
>             Project: Commons Math
>          Issue Type: Improvement
>            Reporter: Gilles
>            Priority: Trivial
>             Fix For: 4.0
>
>
> From discussions on the "dev" ML, it seems that it would be advantageous to introduce a method "isSparse()" in "RealVector" and in "RealMatrix".
> For "RealVector", it will make sense to use it to select between "iterator()" and "sparseIterator()" in methods implemented in that class.
> We could then remove the "SparseRealVector" and "SparseRealMatrix" interfaces.

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