ADF graph refresh

Hi,
I am new to ADF and while learning, I am stuck in a problem and couldn't find a solution since long.
I
am explaining my demo project scenario as below , sorry for making it long .....................
I have two java class, ClassID that returns IDs of the student in an arraylist and ClassMarks that returns sum of marks for that ID(it returns Id and sum(marks) as arraylist. I have created data model for these two classes, using rt clk and 'create data model'.
Next, I created a JSF page and on the top I dragged the IDs data model method as 'select one choice'. Below that I dragged the marks method for the 2nd class model as a dvt bar graph
I added a button from the control palette .
In the button action I am adding the selected ID from the SOC into session variable. The end logic for the graph class is that it will pick the value from the session and based on the ID, it will fetch rows from database and return an array list of ID and marks. and create a graph.
But the problem i am facing is that, when the first time page loads, it loops through the datamodel for the ID and graph. and creates the page without any graph as no value was there in the session. when I select one ID and hit the submit button, the graph doesnot refresh with the new values.
Please help me out. I tried googling and read forums but every where it is shown as ADF BC from table and i have not used that.
Thanx in advance.

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About this post:
Re: ADF: Tree Refresh after Expanding a node
Frank answered that he doesn't notice that behavior. I found out that this happens if an appication uses a custom skin.
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Hi,
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As a technician, i imagine that the only way regions are able to automatically detect the need to re-execute their task flow is putting theirselves in constant listening to eventual changes in the value of their parameters. As far as i know, this is the only way for regions to detect the exact moments when refresh is required, despite the way their parameters are updated. If this is not the case, then i think the assumption according to which regions are able to refresh theirselves no matter the way their parameters are changed is wrong, and i'd like to know the real mechanism that hides behind the refresh of ADF regions.
You said that:
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Please, let me ask you: even if the code that changes the value runs inside a thread different from the "ADF thread"?
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Attachments:
Stiffness and Damping VIs for forum.zip ‏240 KB

Thanks Tom,
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Attachments:
DATA FROM RIG v2.vi ‏553 KB
FRA SubVI.vi ‏71 KB

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Message was edited by:
xpp

ADF Faces refresh conditions cause NullPointerException

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Most values in our application are read-only and some take some time to be provided by the database. To increase performance of our web application we decided to change the refresh condition from Refresh="ifNeeded" to Refresh="renderModelIfNeeded". The parameters of the bindings should not change so this seemed to be o.k. for our needs. To avoid the call during postbacks we added RefreshCondition="${!adfFacesContext.postback}".
<pageDefinition xmlns="http://xmlns.oracle.com/adfm/uimodel"
version="10.1.3.41.57" id="app_pagePageDef"
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07/10/30 14:02:37 at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:192)
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07/10/30 14:02:37 at oracle.adfinternal.view.faces.webapp.AdfFacesFilterImpl.doFilter(AdfFacesFilterImpl.java:123)
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07/10/30 14:02:37 at oracle.adfinternal.view.faces.webapp.AdfFacesFilterImpl.doFilter(AdfFacesFilterImpl.java:123)
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Thanks
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visualEffects="NONE"
imageHeight="#{gaugeImageHeight}"
inlineStyle="width:25px;">
Please find the image of the rendered page [ here|http://img571.imageshack.us/img571/1650/scalingissue.png]
2. When the scaling is above 1000 along Y-axis, the min value(i.e "0") is at the same level as the starting position of histogram bar but in case if it less than min value of scaling is bit up from the starting position the histogram bar.
Please find the image of the rendered page here .
Please let me know if you need further information to provide any suggestions to resolve the issues.
Thanks
Soumen

Hi Luis,
It is possibel to sue DVT Graph in a Java client application. For documentation, you would have to use DVT Javadoc to call java methods on oracle.dss.graph.Graph class.
I can send you some sample apps off-line if you contact me: katarina obradovic at oracle.
Hope this helps
Katia

Mixed signal graph refresh

im having some problems with refreshing my mixed signal graph. This was my first try to get this to work. It basicly does what i want after i intitialize the values in the array and press
the run button. Ever time after it seems the initial values of the dc waves seem to be retained by the graph making its last endypoint the new start point.
i would like the graph, or the information going to the graph to reset every time i press the run button
Attachments:
mixed signal 1.vi ‏401 KB

Hi xciene,
In order to reset/clear the graph ever time you run your VI you can use a invoke node for your graph to programmatically call the "Reinitialize to Default Values". To manually reset/clear your graph you can right click it on the front panel and select Data Operations >> Reinitialize to Default Values. However to do it programmatically follow this process:
Locate your Mixed Signal Graph indicator on your block diagram
Right click it and navigate to Create >> Invoke Node >> Reinitialize to Defaults (see attached screenshot)
Place this invoke node in the sequence frame in which you want the graph to reset (if you want it to right away place it in the first frame)
If you nagivate through these property/invoke nodes for controls and indicators you can find that alot of the items that you do manually can be automated. I hope this helps direct you down the right path. Thanks and have a great day!
Cheers,
Jonah
Applications Engineer
National Instruments
Jonah Paul
Marketing Manager, Embedded Software
Evaluate the LabVIEW RIO Platform! - ni.com/rioeval
Attachments:
forum_mixed-signal_reset.JPG ‏81 KB

Configuring ADF Graph Component

Hi all,
Can you help me to find any document that explains how to configure a graph component in a ADF Swing application?
I've seen a lot of documents about DVT Graph component but they do not apply to Swing.
Is there any wizard that can be used in this case, as I see in ADF Faces Documentation?
TIA,
Luis

Hi Luis,
It is possibel to sue DVT Graph in a Java client application. For documentation, you would have to use DVT Javadoc to call java methods on oracle.dss.graph.Graph class.
I can send you some sample apps off-line if you contact me: katarina obradovic at oracle.
Hope this helps
Katia

ADF graph refresh

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