FXML expression binding

Richard Bair richard.bair at oracle.com
Tue May 21 08:32:16 PDT 2013


No it does not, I don't think it is defined what it supports at present, but it definitely is not UEL.

Richard

On May 20, 2013, at 11:37 AM, Philipp Dörfler <phdoerfler at gmail.com> wrote:

> Just to clarify - at the moment, FXML expression binding uses UEL?
> 
> Thanks,
> ~ Philipp
> 
> Am 07.05.2013 um 11:42 schrieb Werner Lehmann <lehmann at media-interactive.de>:
> 
>> See below.
>> 
>> On 07.05.2013 01:56, Richard Bair wrote:
>>>> ! boxD.selected&&  boxE.selected seems to be: !(boxD.selected&&  boxE.selected)
>>> 
>>> I'd probably call that one a bug. Whether it was or not!
>> 
>> I would agree. Looks to me as if there might be special code checking for a '!' at the beginning of the expression. Regardless whatever comes next.
>> 
>>> At the time, I really wanted us to use UEL (same expression language used by JSF, JSP) for the following reasons:
>>>    - EE engineers will be familiar with it
>>>    - Lots of example code out there
>>>    - Implementation already exists and is robust
>>> 
>>> There were a few things I felt needed fixing in UEL to be quite what
>>> I wanted, but basically I felt we should take it and go. Since then
>>> some other binding languages have come on the scene such as
>>> handlebars and I don't remember how many others we looked at. Should
>>> we just take UEL, or should we take a full survey of the JS
>>> state-of-the-art?
>> 
>> Personally I don't know UEL (used only OGNL on Tapestry). Not sure if UEL documentation 100% applies to FX beans/properties when it is intended for EE beans. For example, what about obserable properties, or the #{} syntax. If that is clarified I'd be happy with the choice.
>> 
>> The "Parameterized Method Calls" feature might even help to resolve RT-19198 which is about preselection in selection models in FXML. One problem here: select() is a void method, so there is no good result of that expression and in this case you wouldn't want to use it anyway.
>> 
>> http://docs.oracle.com/javaee/6/tutorial/doc/bnahu.html#gjhbz
>> 
>> Werner
> 



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