title: Unable to set bind variables for view object of ADF trees
body: <p>I am having an ADF tree made from the TreeVO containing two attributes Parent_prod and Prod. This VO has a view link joining it to itself. TreeVo also has named bind variables which I need to set at run time through my managed bean. I am using the following code to set it -</p>
  
  <pre><code>ViewObject vo = am.findViewObject("Tree_VO1");
  VariableValueManager vm = vo.ensureVariableManager();
  vm.setVariableValue("a", "Oracle Sales Catalog");
  vm.setVariableValue("b",selectedRow.getAttribute("Pillar"));
  vm.setVariableValue("c",selectedRow.getAttribute("ProductLine"));
  vm.setVariableValue("d", selectedRow.getAttribute("ProductGroup"));
  vo.executeQuery();
  </code></pre>
  
  <p>But at run time through the logs ( set to FINEST), I get that bind variables are not getting set and it is taking Null values for them. </p>