UiXML: dataBinding problem with decimal validator

Question

I'm trying to use the decimal validator inside a uit template and dataBind the minValue, maxValue, maxScale and maxPrecision attributes to the ui:rootAttr dataObject like so:
<textInput ...>
<onSubmitValidater>
<decimal
data:minValue="minValue@ui:rootAttr"
data:maxValue="maxValue@ui:rootAttr"
data:maxPrecision="maxPrecision@ui:rootAttr"
data:maxScale="maxScale@ui:rootAttr"/>
</onSubmitValidater>
</textInput>
However that doesn't seem to work the validation never executes.
But when I don't use dataBinding it works fine.
Example:
<textInput ...>
<onSubmitValidater>
<decimal
minValue="0"
maxValue="10"
maxPrecision="2"
maxScale="3"/>
</onSubmitValidater>
</textInput>
Could it be that there is some bug with the decimal validator? I'm using the dateValidator in just the same way and it works fine.
Guido

Answer 1

We'll at least warn you of the problem starting in 9.0.5.
Getting full databinding support in there may not happen
by then.
But there is a workaround today: databind the
onSubmitValidater attribute:
<textInput data:onSubmitValidater="decimal@someBean"/>
... to point to code that directly creates the
DecimalValidater.
public ClientValidater getDecimal()
DecimalValidater validater = new DecimalValidater();
validater.setMinValue(1.0);
// etc...
return validater;