Refresh a graph in a region.

Hi,
I am using JDEV 11.2.1.0
I have used VO1 as a graph in a region in JSF page. Same JSF page has a method which updates another VO2.
EO of VO1 and VO2 is the same. I am trying to refresh VO1 by requerying in the page but the graph does not refresh. I am using PPR for the region.
Please let me know how to refresh graph in a region.
Thanks in advance.

After you update your VO2, if you press F5, does the graph refresh? If not, the the issue is not with PPR.
Try setting ChangeEventPolicy to PPR on the executable iterator instance from your regions page definition. (Go to your regions page definition,in the executables section select your iterator and from properties change the option). If the option is already selected, then you can try to call Execute method which is an operation in your VO1. Try dragging and dropping the method from your DC as a button in your REGION next to the graph. Run the app, update the VO1 and then press Execute button.
Hope this helps.

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Try setting ChangeEventPolicy to PPR on the executable iterator instance from your regions page definition. (Go to your regions page definition,in the executables section select your iterator and from properties change the option). If the option is already selected, then you can try to call Execute method which is an operation in your VO1. Try dragging and dropping the method from your DC as a button in your REGION next to the graph. Run the app, update the VO1 and then press Execute button.
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PNG good.PNG ‏9 KB
PNG bad.PNG ‏9 KB

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Steve wrote:
I have a page with several regions, and only one region is visible at a time. Each region contains a report as well as a drop-down to alter the data displayed in the report. Currently each time a drop-down value is changed it submits the page, which causes the "main region" to become visible since it is set by default to display first.
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I am quite new to ADF and that's my first question/post here (and as a matter of fact pretty much anywhere),
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First i am using ADF Faces + ADF BC using JDeveloper 11.1.2.1.0 with the integrated WebLogic Server
Now the what is the case:
I have a page with two af:regions in it.
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I don't use the contextual events mechanism ( i have spent some week or more playing around with it awhile ago, but from that exprience i don't recollect any particular thing that might solve my problem) so what i do is pass as parameter to the first(table) region a "delegate" that would listen/handle selection events and in the backing bean of the table i have the selection listener that fires the events/calls the delegate's handleEvent(String eventType,Object data) method so that the main page knows and refreshes the second/edit form region
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The only solution i have so far is:
First to make clear. When i say refreshing the second region i don't mean calling RichRegion.refresh(), but rather RichRegion.queueActionEventInRegion(....., "refresh",PhaseId.ANY_PHASE) which in the second's region taskflow is just a method call, that sets the right current row of the iterator and then loops back to the same (one and only view in this taskflow - the edit form) and adds some parialTargets to the AdfFacesContext, so we see the new data
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And when i say make sure that the values are applied... i actually mean - get on my knees and pray because the whole thing looks too hacky already, but so far it works.
But now i have to make sure the validation has been ok (otherwise i get a funny effect of seeing the red popups at the invalid text inputs just for a second and then my region is refreshed to the new entity or i get an JBO exception depending of whether i call the next lines that follow without the if(..){processUpdates}
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It took me days to come up with this...i would call it hack...And a day or two more to adapt the rest of the page's logic with the whole design changes i had to make but i still believe there must be some better solution that i am missing because for a number of reasons i don't feel right eith this one, which, while implemented and working (i hope) makes the whole real case a lot more complex than it used to be (and still feels like a hack),
just for the simple reason that I want to get some updated values back in the model.
Just as an example of a design change i had to make i give you the afformentioned methodCall i had to add, because the processUpdate would not work if not called with the right adf bindings context... first i tried calling them from a custom PhaseListener i have but at that moment nobody knows what #{bindings.MyEntityId.inputValue} is.
Thanks and Greeting
trout
Edited by: trout1234 on Aug 2, 2012 10:47 AM
Edited by: trout1234 on Aug 2, 2012 10:57 AM

Oh yes... and i have also noticed that if the action is triggered from a component(e.g. clicking on a commandLink) that is a part of the main page
the values are updated in all regions (i think so :) ) ... so i even tried a client listener in the first region that calls javascript function that queues a custom event with a source component from the main page, but yet the selection event is propagated to the server even with the event.cancel() and evt.stopBubbling()
and i could not make my custom event force the apply request values... but here i might have done somthing wrong i dont know it is a mess anyway... sure this one sound more of a hack than my current option....by my criteria at least

Refresh a graph in a region.

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