>>> If i  understand what you mean,  you want to repopulate the grid
everytime the data are updated in the backend right ?

exactly. yes i think u r right i can do it using timer object. so i am
guessing flex does provide asynchronous support in its own way :)
I would be curious to see what an AJAX framework like GWT can do which flex
cant.

thanks for your input.



On Wed, May 25, 2011 at 9:34 PM, Alain Ekambi
<jazzmatad...@googlemail.com>wrote:

>  If i  understand what you mean,  you want to repopulate the grid everytime
> the data are updated in the backend right ?
>
> I think Blase DS does not support pushing Data to the client. Atleast not
> the  free version.
>
> A solution could be to set up a timer that will  poll data from the backend
> every 5s ?
> I think  you can do that  in as3
>
> Dont get me wrong i dont want to keep you from using GWT, i just think that
> in your case there is a solution that is more effcient and esay to maintain
> then using GWT. But if you dont mind having some overhead  plus a  language
> explosion (MXML/AS3, JS, Java)  and architecture problem in your project. I
> can tell you what our first solution to solve this type of problem was
>
> 2011/5/26 Jay Roy <jagger...@gmail.com>
>
>> let me explain with a simple example
>> We have a flex screen with a data grid. The data in data grid is populated
>> with java collection. The java collection contains stock data which comes
>> from backend.  In the backend every 0.5 second the stock data in collection
>> is updated(we get market feed of data).
>>
>> so every 0.5 second we need to refresh the flex data grid and update it
>> with the backend data.
>>
>> So the question now is we need to make a asynch call every 0.5 sec to
>> fetch the updated data.
>>
>> I am using blazeds to get the java collection but i dont think blazeds can
>> be used to make asynchronous calls. That is where we want to use ajax to
>> make the asynchronous call every 0.5 sec.
>>
>> thanks.
>>   On Wed, May 25, 2011 at 8:32 PM, Alain Ekambi <
>> jazzmatad...@googlemail.com> wrote:
>>
>>> What exactly  do you mean  with "incorporate ajax" ?
>>> Do you mean making async  call to the server ?
>>> If  yes cant you do that with Blase DS ?
>>>
>>> Like i said before i dont know  if the road mxml/as ->External Interface
>>> -> js ->  gwt -> backend  and  back is effective
>>> because  you are adding  a lot of overhead just to call methods in the
>>> backend.
>>>
>>>
>>>
>>>   2011/5/26 Jay <jagger...@gmail.com>
>>>
>>>>   Thanks for response. We are already using blazeds to communicate with
>>>> our remote spring services. Our present architecture:
>>>> Flex talks to backend java objects using spring blazeds.
>>>>
>>>> I want to incorporate ajax so What I had in mind is
>>>> Flex mxml/as screen invokes JavaScript invokes java backend?
>>>> Would that be correct?
>>>>
>>>> Thanks
>>>>
>>>> On May 25, 2011, at 5:58 PM, Alain Ekambi <jazzmatad...@googlemail.com>
>>>> wrote:
>>>>
>>>>    Well the suggestion  was for the "Integrating Flex with GWT part".
>>>>
>>>> If you come from Flex learning GWT should not  be a  big problem because
>>>> the development model is very similar.
>>>> The official GWT Documentation is always a good point to start: 
>>>> <http://code.google.com/webtoolkit/doc/latest/DevGuide.html>
>>>> http://code.google.com/webtoolkit/doc/latest/DevGuide.html
>>>> And if you are really really stucked there is a guy called *Thomas
>>>> Broyer* here in the community. You cant miss him :)
>>>>
>>>> Making a GWT RPC call from an AS3/MXML based  Flex application is not
>>>> that easy and adds a lot of  overhead to your application.
>>>>
>>>> We had the same issue with one of our Flex applications. This is one of
>>>> the reasons that motivated me to create a GWT API for Flex, so one could 
>>>> use
>>>> Java everywhere instead of mixing MXML/AS3(Flex UI), JavaScript(External
>>>> Interface to communicate with the GWT ) and Java(GWT +  backend)
>>>>
>>>> If your Flex application is MXML/AS3 based the best way should be to use
>>>> something like Blase DS.
>>>>
>>>> If you want to use a GWT API to build a Flex application  you can  have
>>>> a look at gwt4air.
>>>>
>>>> Best,
>>>>
>>>> Alain
>>>>
>>>>
>>>>
>>>>
>>>> 2011/5/25 Alain Ekambi < <jazzmatad...@googlemail.com>
>>>> jazzmatad...@googlemail.com>
>>>>
>>>>> May i suggest you Gwt4Air ? :)
>>>>> <http://code.google.com/p/gwt4air/>http://code.google.com/p/gwt4air/
>>>>>
>>>>>
>>>>> 2011/5/25 Jaggernat < <jagger...@gmail.com>jagger...@gmail.com>
>>>>>
>>>>>> hi guys
>>>>>>
>>>>>> I need to learn GWT and impliment a simple solution using GWT. I come
>>>>>> from flex background.
>>>>>> can anyone point me what the important concepts in GWT is? and in what
>>>>>> order do i learn?
>>>>>>
>>>>>> Goal:
>>>>>> we are currently developeing a trading app using flex screens but we
>>>>>> want to use ajax framework GWT to make the asynchronous backend calls
>>>>>> to our spring-java backend.
>>>>>> (Is using flex  Fabridge an option to integrate GWT with flex?)
>>>>>>
>>>>>> any help greatly appreciated
>>>>>> thanks.
>>>>>>
>>>>>> --
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>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>>
>>>>> GWT API for  non Java based platforms
>>>>>  <http://code.google.com/p/gwt4air/>http://code.google.com/p/gwt4air/
>>>>>  <http://www.gwt4air.appspot.com/>http://www.gwt4air.appspot.com/
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>>
>>>> GWT API for  non Java based platforms
>>>>  <http://code.google.com/p/gwt4air/>http://code.google.com/p/gwt4air/
>>>>  <http://www.gwt4air.appspot.com/>http://www.gwt4air.appspot.com/
>>>>
>>>>
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>>>
>>>
>>>
>>> --
>>>
>>> GWT API for  non Java based platforms
>>> http://code.google.com/p/gwt4air/
>>> http://www.gwt4air.appspot.com/
>>>
>>>
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>
>
>
> --
>
> GWT API for  non Java based platforms
> http://code.google.com/p/gwt4air/
> http://www.gwt4air.appspot.com/
>
>
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