Passing a session (or other scope) variable to a graphModel

Question

So here's my delimma... I'm using 11.1.1.3g Jdeveloper.
I'm trying to get a graph which is gets its value from a View (which takes as an input a single variable). See definitions of some of these below. I'm trying to get the graph to pass the variable via binding to the view so that the query will return the graph's data based on the query. I'd like to use ADF's binding layer to do this and not involve a backing bean I'm not too sure how to begin. I've been through a lot of the documentation and cannot find exactly how this can be done. I've seen that you can do a master detail but this is not what I want (At least yet) I'd like to setup the value that in a DDL that the user can select from a change the graph below.
InventoryView:
SELECT kit_status, component_id, count(*) as total
FROM numbered_inv
WHERE trialname = :0     
AND kit_status in ('AVAILABLE', 'ASSIGNED/USED', 'PACKAGED')
AND site_id in ( '0000', '00001' )
GROUP BY component_id, kit_status
ORDER BY kit_status
:0 is bound to bind_trialName
Page Def so far:
<?xml version="1.0" encoding="UTF-8" ?>
<pageDefinition xmlns="http://xmlns.oracle.com/adfm/uimodel"
version="11.1.1.56.60" id="shipFreqPageDef"
Package="com.almac.aurora.gateway.clinicalsupplies.pageDefs">
<parameters/>
<executables>
<variableIterator id="variables">
<variableUsage DataControl="PCSAppModuleDataControl"
Binds="Inventory1.variablesMap.bind_trialName"
Name="ExecuteWithParams_bind_trialName"
IsQueriable="false"/>
<variable Type="String" Name="robsVariable"/>
</variableIterator>
<iterator Binds="Inventory1" RangeSize="-1"
DataControl="PCSAppModuleDataControl" id="Inventory1Iterator">
</iterator>
</executables>
<bindings>
<graph IterBinding="Inventory1Iterator" id="Inventory1"
xmlns="http://xmlns.oracle.com/adfm/dvt" type="BAR_HORIZ_CLUST">
<graphDataMap leafOnly="true">
<series>
<data>
<item value="componentid"/>
</data>
</series>
<groups>
<item value="total"/>
</groups>
</graphDataMap>
</graph>
<action IterBinding="Inventory1Iterator" id="ExecuteWithParams"
RequiresUpdateModel="true" Action="executeWithParams">
<NamedData NDName="bind_trialName" NDType="java.lang.String"
NDValue="${bindings.ExecuteWithParams_bind_trialName}"/>
</action>
<attributeValues IterBinding="variables" id="bind_trialName">
<AttrNames>
<Item Value="ExecuteWithParams_bind_trialName"/>
</AttrNames>
</attributeValues>
Pointing me to a tutorial that updates a DataModel based on an input from the session or from a DDL would be helpful. I cant seem to find one...
Thanks in advance!!

Answer 1

Sorry I'm still having trouble figuring this out. So, on my graph (shown below) I have the value referring to the binding... How do I make the binding pass the view a value?
<dvt:graph id="horizontalBarGraph1"
value="#{bindings.Inventory1.graphModel}"
graphType="#{backing_shipFreq.graphType}"
dynamicResize="DYNAMIC_SIZE"
styleClass="AFStretchWidth">
<dvt:background>
<dvt:specialEffects/>
</dvt:background>
<dvt:graphPlotArea/>
<dvt:seriesSet>
<dvt:series/>
</dvt:seriesSet>
<dvt:o1Axis/>
<dvt:y1Axis/>
<dvt:legendArea automaticPlacement="AP_NEVER"/>
</dvt:graph>