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Posted to dev@pivot.apache.org by "Roger Whitcomb (JIRA)" <ji...@apache.org> on 2013/02/08 23:13:12 UTC

[jira] [Updated] (PIVOT-892) DoubleValidator and FloatValidator do not allow exponents to be entered

     [ https://issues.apache.org/jira/browse/PIVOT-892?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Roger Whitcomb updated PIVOT-892:
---------------------------------

    Attachment: 892.patch

The "892.patch" file is what I've come up with to resolve this issue.  Basically the only way to instantiate a NumberFormat object to recognize scientific notation is to use a pattern.  This code appears to work correctly in all my tests to recognize general decimal and scientific notation for input.
                
> DoubleValidator and FloatValidator do not allow exponents to be entered
> -----------------------------------------------------------------------
>
>                 Key: PIVOT-892
>                 URL: https://issues.apache.org/jira/browse/PIVOT-892
>             Project: Pivot
>          Issue Type: Bug
>          Components: wtk
>    Affects Versions: 2.0.2
>         Environment: All
>            Reporter: Roger Whitcomb
>            Assignee: Roger Whitcomb
>            Priority: Minor
>              Labels: validation
>             Fix For: 2.0.3
>
>         Attachments: 892.patch
>
>   Original Estimate: 1h
>  Remaining Estimate: 1h
>
> The DoubleValidator and FloatValidator classes rely on a default NumberFormat instance to do parsing, however, a DecimalFormat is necessary in order to recognize floating values entered with exponents.
> As a result, using one of these validators currently will fail to validate a valid floating-point number such as "3.0e20".

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