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From Matthias We├čendorf (JIRA) <...@myfaces.apache.org>
Subject [jira] Commented: (TRINIDAD-1489) get a valueChangeEvent for bigDecimal even though user didn't make a change.
Date Sat, 23 May 2009 11:21:45 GMT

    [ https://issues.apache.org/jira/browse/TRINIDAD-1489?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12712408#action_12712408
] 

Matthias We├čendorf commented on TRINIDAD-1489:
----------------------------------------------

yeah,

this comes with JSF 2.x (I think 2.1) as well:

http://wiki.java.net/bin/view/Projects/Jsf2MR1ChangeLog

(see C007)

> get a valueChangeEvent for bigDecimal even though user didn't make a change.
> ----------------------------------------------------------------------------
>
>                 Key: TRINIDAD-1489
>                 URL: https://issues.apache.org/jira/browse/TRINIDAD-1489
>             Project: MyFaces Trinidad
>          Issue Type: Bug
>            Reporter: Gabrielle Crawford
>
> When attribute data type is BigDecimal and <af:convertNumber> is used Trin treats
the attribute as if the attribute value is changed even though the attribute value has not
been changed.
> Under the covers the numberConverter is using the java decimalFormat class, and things
can get a little funny when you use bigdecimal, because bigdecimal remembers formatting information
like scale. So 2.0 is not equal to 2.00 in bigdecimal.
> We can add logic to UIXEditableValueHolder that if .equals fails and if the values are
the same type and implement comparable we should then check compareTo.
> There are 2 workarounds for now.
> 1] apply the pattern to the bigdecimal in the getter, so in the salary
> example code above return newSal instead of sal.
> 2] check compareTo in the setter, and don't set if you get 0.

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