Page life cycle problem

Question

We suspected af:tree had a bug but we observed during debugging that our problem is due to page life cycle and we are searching a way to solve it at the best :
Our problem is the following :
1) we have in the same page a af:tree linked to a java bean data control that present some content in a hierarchy form (link an index) and a second part that contains some ui that represent the selected af:tree node content (linked java bean content). The second part ui's are updateable
2) when we first load the page the af:tree is correctly rendered and we are able to navigate into into it without any problem (expand/collapse). The ui's are empty because we didn't select anything
3) when a node is selected in the af:tree the correspoding data are loaded in ui's. That is perfect.
4) when a second (another) node is selected we discovered that
4.a) the af:tree was positioned to the new node selected that mean that we changed the context in our java bean
4.b) the changes previously done in ui's were executed (eved nothing was edited) in the java bean and that in the wrong context.
This situation cause a mismatch in our java bean data
What is the best way to solve this ?
Is this described somewhere in the documentation how to solve such problem in a same page ?
Is ppr the way ?
Thanks in advance

Answer 1

Hi Frank
What I was missing is that when a node is selected, a code from node details is setted as a parameter in the page, the page (outcome null in af:tree) is refreshed that will cause the ui's method binding to be executed again but after the parameter is setted. The ui's are built from the result a method that will get the corresponding java bean based on the parameter.
is this data queried by you or is it part of the tree node information or detail leafes?
They code is part of the tree node. It is setted into a page parameter. The ui's data is getted from a method (see below method iterator, methodaction from the page definition).
When you say data gets executed upon changing the tree row focus, what does this mean? Do you have a submit defined upon focus lost for the tree?
ui's binding is executed. The setter's are executed.
So what is the desired behavior you are looking for ?
The setter have to be executed before the java bean context is updated, i mean before the binding to the method action is executed
Actually i have, when i click on a node in a previously loaded page:
1) click on node
2) set the parameter from selected node
3) refresh the page
4) execute what we can name a java bean finder method (a java bean method that select a xml node in xml java bean using jxpath with a xpath expression that is executed from the method action in the page definition)
5) execute the setter from the binding (but into the wrong java bean because the method action change the java bean context)
In fact, 5) has to be executed before 4) is executed
That is my problem
af:tree code :
              <af:tree value="#{bindings.ClassificationEntryListclassificationEntry.treeModel}"
                       var="node">
                <f:facet name="nodeStamp">
                  <h:panelGroup>
                    <af:commandLink text="#{node}">
                      <f:param name="selectedEntry"
                               value="#{node.classificationEntryCode}"/>
                    </af:commandLink>
                  </h:panelGroup>
                </f:facet>
              </af:tree>Page definition :
<?xml version="1.0" encoding="UTF-8" ?>
<pageDefinition xmlns="http://xmlns.oracle.com/adfm/uimodel"
                version="10.1.3.39.84" id="untitled1PageDef"
                Package="view.pageDefs">
  <parameters/>
  <executables>
    <iterator id="ClassificationDocumentDataControl_rootIter" RangeSize="10"
              Binds="root" DataControl="ClassificationDocumentDataControl"/>
    <accessorIterator id="classificationIterator" RangeSize="10"
                      Binds="classification"
                      DataControl="ClassificationDocumentDataControl"
                      BeanClass="classification.testcase.castor.Classification"
                      MasterBinding="ClassificationDocumentDataControl_rootIter"/>
    <accessorIterator id="classificationEntryListIterator" RangeSize="10"
                      Binds="classificationEntryList"
                      DataControl="ClassificationDocumentDataControl"
                      BeanClass="classification.testcase.castor.ClassificationEntryList"
                      MasterBinding="classificationIterator"/>
    <accessorIterator id="classificationEntryIterator" RangeSize="10"
                      Binds="classificationEntry"
                      DataControl="ClassificationDocumentDataControl"
                      BeanClass="classification.testcase.castor.ClassificationEntry"
                      MasterBinding="classificationEntryListIterator"
                      Refresh="ifNeeded"/>
    <variableIterator id="variables"/>
    <methodIterator id="findClassificationEntryByIdentificationIter"
                    Binds="findClassificationEntryByIdentification.result"
                    DataControl="ClassificationDocumentDataControl"
                    RangeSize="10"
                    BeanClass="classification.testcase.castor.ClassificationEntry"/>
  </executables>
  <bindings>
    <tree id="ClassificationEntryListclassificationEntry"
          IterBinding="classificationEntryIterator">
      <AttrNames>
        <Item Value="classificationEntryCode"/>
        <Item Value="classificationEntryCount"/>
        <Item Value="valid"/>
      </AttrNames>
      <nodeDefinition DefName="classification.testcase.castor.ClassificationEntry"
                      id="ClassificationEntryNode">
        <AttrNames>
          <Item Value="classificationEntryCode"/>
        </AttrNames>
        <Accessors>
          <Item Value="classificationEntry"/>
        </Accessors>
      </nodeDefinition>
    </tree>
    <methodAction id="findClassificationEntryByIdentification"
                  InstanceName="ClassificationDocumentDataControl.dataProvider"
                  DataControl="ClassificationDocumentDataControl"
                  MethodName="findClassificationEntryByIdentification"
                  RequiresUpdateModel="true" Action="999"
                  IsViewObjectMethod="false"
                  ReturnName="ClassificationDocumentDataControl.methodResults.ClassificationDocumentDataControl_dataProvider_findClassificationEntryByIdentification_result">
      <NamedData NDName="entryIdentification"
                 NDValue="#{param.selectedEntry}"
                 NDType="java.lang.String"/>
    </methodAction>
    <attributeValues id="classificationEntryCode"
                     IterBinding="findClassificationEntryByIdentificationIter">
      <AttrNames>
        <Item Value="classificationEntryCode"/>
      </AttrNames>
    </attributeValues>
  </bindings>
</pageDefinition>Hope it is a little bit more clear