Thanks for the Reply Ümit,
I was hoping to see if there is a built in way to handle requests in a
proxy.
But I'll try the onReset() method way you suggested.
Thanks again!
On Wednesday, September 7, 2016 at 10:09:14 AM UTC-4, Ümit Seren wrote:
>
> Why don't you just store the current product as a field variable in the
> class and in the onReset method you can just access the currentPlaceRequest
> and compare them and then conditonally load the data.
>
>
> On Tuesday, September 6, 2016 at 5:48:52 PM UTC+2, harshyadav wrote:
>>
>> This is a GWTP question, asking here as no answer on the GWTP
>> group/stackoverflow.
>>
>>
>> I have a Presenter (with Proxy), and I display multiple child presenters
>> (with ProxyPlace) inside the parent presenter.
>>
>> Parent Presenter:
>>
>>
>> @ProxyStandard
>> @NoGatekeeper
>> public interface MyProxy
>> extends Proxy<ParentPresenter> {
>> }
>>
>>
>>
>> Child Presenters:
>>
>> @NameToken (NameTokens.CHILD)
>> @ProxyCodeSplit
>> public interface MyProxy
>> extends ProxyPlace<ChildPresenter> {
>> }
>>
>>
>>
>> The parent presenter gets the common data and display it in the top main
>> menu. So far so good.
>> When the parent presenter gets the data, it uses the event bus to
>> generate an event. The child presenters implements the handler to listen to
>> the event.
>>
>> The issue is that I want the parent presenter to load the new common
>> data, only on the place change i.e. when the URL parameter changes.
>> Since the Proxy presenters don't implement prepareFromRequest, I cant do
>> that in Parent Presenter.
>>
>> I can work around with that, by loading common data in either onReset()
>> or by implementing a NavigationEvent in the parent presenter.
>> However in that case, the data would be loaded unnecessarily, even when
>> not needed.
>>
>> For e.g.
>> if the URL parameter is product=1, the child presenters look like:
>> #child1;product=1
>> #child2;product=1
>>
>> I want the Parent Presenter to only request the new data, if the actual
>> URL parameter changes.
>> That is:
>> Load new data if URL changes from:
>> #child1;product=1 TO #child1;product=2
>>
>> OR
>>
>> #child1;product=1 TO #child2;product=2
>>
>>
>> NOT when it changes from:
>> #child1;product=1 TO #child2;product=1
>>
>>
>> What I can do is check in the Parent Presenter, if the current history
>> parameter is same or different than the previous one, and then load new
>> data.
>> But is there a better way to do this. I want to call my data service only
>> when needed.
>>
>>
>> Thanks,
>> Harsh
>>
>
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