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