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From "Gabrielle Crawford (JIRA)" <>
Subject [jira] Updated: (TRINIDAD-1683) client-side convertNumber causes loss of precision
Date Tue, 23 Feb 2010 18:56:28 GMT


Gabrielle Crawford updated TRINIDAD-1683:

       Resolution: Fixed
    Fix Version/s: 1.2.14-core 
           Status: Resolved  (was: Patch Available)

> client-side convertNumber causes loss of precision
> --------------------------------------------------
>                 Key: TRINIDAD-1683
>                 URL:
>             Project: MyFaces Trinidad
>          Issue Type: Bug
>          Components: Components
>    Affects Versions:  1.2.12-core
>            Reporter: Cale Scholl
>            Assignee: Gabrielle Crawford
>            Priority: Minor
>             Fix For: 1.2.14-core 
>         Attachments: maxPrecision_1.2.12.2.patch, maxPrecision_trunk.patch
> ----------
> JS numbers are 64-bit values and thus only have 16 digits of precision; this isn't enough
to represent the max value of a Long, BigInteger, or BigDecimal. This means that when we convert
a number string to object then back to string on the client, we can lose precision, even though
we wouldn't lose any precision on the server.
> FIX:
> -----
> Only render a client converter if the input value is bound to a supported type (Float,
Double, Integer, Short, Byte). The JavaScript number is a 64-bit floating type and has enough
precision to represent any of these supported types.

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