How do I control a table's column visible in Java

Question

Using JDeveloper 11.1.1.4.0
I want to control a rich tree table's column visibility programatically in Java. I've looked for syntax and do not find an example like I need. I need to directly control the column similar to how a panel collection does. The visibility of the column will be set and then the table refreshed (I've got the refresh part working), I just need to correctly reference the column. This logic will be triggered by a rowDisclosureListener that is defined as pageFlowScope. I've tried experimenting on myTable which is a RichTreeTable, but the plethora of syntax choices after "myTable." is enormous. Also, is it possible to allow the panel collection to override this logic or remove the column from its columns list?
Thanks in advance,
Troy

Answer 1

Wow, I wish I could include a screenshot to show what is happening. My bean has somewhat similar logic, only I am trying to have my treetable show an additional column when a node of the treetable is expanded. I thought this problem might be caused by the panel collection so I tried taking it off, but it still behaves the same. I can show the column, but no header shows up for it. The original column headers stay fixed as does the data of node 0, but the subsequent (node 1) data after the first column is shifted to the right with each column added between the first column and the end column. If I do a browser refresh after expanding a node, it refreshes with the column header that was missing--strange.
from my bean:
    public void onNodeDisclosure(RowDisclosureEvent rowDisclosureEvent) {
        boolean isCloseEvent = false;
        RowKeySet rowKeySet = rowDisclosureEvent.getAddedSet();
        //did disclosure event open a new node ?
        if (rowKeySet.iterator().hasNext()) {
            isCloseEvent = false;
            nodeLevel++;
        } else {
            isCloseEvent = true;
            nodeLevel--;
            //get the previously disclosed set
            rowKeySet = rowDisclosureEvent.getRemovedSet();
        if (nodeLevel == 1 && isCloseEvent == false) {
            setShowTaxyear(Boolean.TRUE);
        } else if (nodeLevel == 1 && isCloseEvent == true) {
            setShowTaxyear(Boolean.FALSE);
            setShowTaxunit(Boolean.FALSE);
        if (nodeLevel == 2 && isCloseEvent == false) {
            setShowTaxyear(Boolean.TRUE);
            setShowTaxunit(Boolean.TRUE);
          } else if (nodeLevel == 2 && isCloseEvent == true) {
            showTaxunit = true;
        if (nodeLevel == 3 && isCloseEvent == false) {
            setShowTaxyear(Boolean.TRUE);
            setShowTaxunit(Boolean.TRUE);
        partiallyrefreshUIComponent();
    public void setAmtsOwedTreeTbl(RichTreeTable amtsOwedTreeTbl) {
        this.amtsOwedTreeTbl = amtsOwedTreeTbl;
    public RichTreeTable getAmtsOwedTreeTbl() {
        return amtsOwedTreeTbl;
    public void setShowTaxyear(boolean showTaxyear) {
        this.showTaxyear = showTaxyear;
    public boolean isShowTaxyear() {
        return showTaxyear;
    public void setShowTaxunit(boolean showTaxunit) {
        this.showTaxunit = showTaxunit;
    public boolean isShowTaxunit() {
        return showTaxunit;
   * PRIVATE METHOD
  private void partiallyrefreshUIComponent() {
      AdfFacesContext adfFacesContext = AdfFacesContext.getCurrentInstance();
      adfFacesContext.addPartialTarget(getAmtsOwedTreeTbl());
  }my treetable:
        <af:treeTable value="#{bindings.GetAmtsGrandTotal_VO2.treeModel}"
                      var="node"
                      selectionListener="#{bindings.GetAmtsGrandTotal_VO2.treeModel.makeCurrent}"
                      rowSelection="multiple" id="amtsowedtt1" width="900"
                      columnSelection="multiple"
                      inlineStyle="border-style:none;"
                      summary="This table dynamically displays the amounts due, (interest, penalties and attorney fees--if any) and a total due.  The rows can be expanded to show the above amounts by year, tax unit and owner."
                      shortDesc="Amounts Due" autoHeightRows="0"
                      immediate="false"
                      clientComponent="true"
                      rowDisclosureListener="#{pageFlowScope.browseAmtsOwedTreeTblBean.onNodeDisclosure}"
                      binding="#{pageFlowScope.browseAmtsOwedTreeTblBean.amtsOwedTreeTbl}">
          <f:facet name="nodeStamp">
<!-- this column is to always show -->
            <af:column id="amtsowedc1" width="130"
                       inlineStyle="#{node.bindings.NodeType=='aggregate'?'font-weight:bold;':''}"
                       visible="#{true}">
              <af:outputText value="#{node.bindings.NodeLabel}"
                             id="amtsowedot1"/>
            </af:column>
          </f:facet>
<!-- this column should show when node 1 or greater is exposed -->
          <af:column width="45" id="amtsowedc2"
                     visible="#{pageFlowScope.browseAmtsOwedTreeTblBean.showTaxyear}" inlineStyle="text-align:center;"
                     sortable="true" sortProperty="#{node.bindings.Taxyear}">
            <af:outputText value="#{node.bindings.Taxyear}" id="amtsowedot2"/>
                    <f:facet name="header">
                      <af:outputText value="Tax Year" id="amtsowedot33"
                                     inlineStyle="text-align:center;"
                                     visible="#{pageFlowScope.browseAmtsOwedTreeTblBean.showTaxyear}"
                                     noWrap="true" rendered="#{pageFlowScope.browseAmtsOwedTreeTblBean.showTaxyear}"/>
                    </f:facet>
          </af:column>
<!-- this column should show when node 2 or greater is exposed -->
          <af:column width="40" id="amtsowedc3" visible="#{pageFlowScope.browseAmtsOwedTreeTblBean.showTaxunit}"
                     inlineStyle="text-align:center;"
                     sortable="true" sortProperty="#{node.bindings.Taxunit}"
                     filterable="true" filterFeatures="caseInsensitive">
            <af:outputText value="#{node.bindings.Taxunit}" id="amtsowedot3"/>
                    <f:facet name="header">
                      <af:outputText value="Tax Unit" id="amtsowedot66"
                                     inlineStyle="text-align:center;"
                                     visible="#{pageFlowScope.browseAmtsOwedTreeTblBean.showTaxunit}"
                                     noWrap="true" rendered="#{pageFlowScope.browseAmtsOwedTreeTblBean.showTaxunit}"/>
                    </f:facet>
          </af:column>
          <af:column id="amtsowedc4" align="right" headerText="Calculated Levy"
                     inlineStyle="#{node.bindings.NodeType=='aggregate'?'font-weight:bold;':''};"
                     visible="false">
            <af:outputText value="#{node.bindings.Calclevy}" id="amtsowedot4"/>
          </af:column>
          <af:column id="amtsowedc5" align="right" headerText="Levy Due"
                     inlineStyle="#{node.bindings.NodeType=='aggregate'?'font-weight:bold;':''};"
                     visible="false">
            <af:outputText value="#{node.bindings.Ballevydue}"
                           id="amtsowedot5"/>
          </af:column>
          <af:column id="amtsowedc6" align="right" headerText="Interest Due"
                     inlineStyle="#{node.bindings.NodeType=='aggregate'?'font-weight:bold;':''};"
                     visible="false">
            <af:outputText value="#{node.bindings.Intdue}" id="amtsowedot6"/>
          </af:column>
          <af:column id="amtsowedc7" align="right" headerText="Penalty Due"
                     inlineStyle="#{node.NodeType=='aggregate'?'font-weight:bold;':''};"
                     visible="false">
            <af:outputText value="#{node.bindings.Pendue}" id="amtsowedot7"/>
          </af:column>
          <af:column id="amtsowedc8" align="right" headerText="Attorney Due"
                     inlineStyle="#{node.bindings.NodeType=='aggregate'?'font-weight:bold;':''};"
                     visible="false">
            <af:outputText value="#{node.bindings.Attydue}" id="amtsowedot8"/>
          </af:column>
<!-- this column is to always show -->
          <af:column id="amtsowedc9" align="right" headerText="Total Due"
                     inlineStyle="#{node.bindings.NodeType=='aggregate'?'font-weight:bold;':''};"
                     visible="#{true}">
            <af:outputText value="#{node.bindings.Totalbaldue}"
                           id="amtsowedot9"/>
          </af:column>
          <f:facet name="pathStamp">
            <af:outputText value="#{node}" id="amtsowedot0"/>
          </f:facet>
        </af:treeTable>