Skip to main content

What you may need to know about <events> definitions in PageDef file

I'm not sure how many of you have noticed the 'generated' PageDef file entries when you define a Contextual Event using the editor(PS2 release). If you define Contextual Event for a command button, the generated PageDef entries may look like as shown below
<?xml version="1.0" encoding="UTF-8" ?>
<pageDefinition xmlns="http://xmlns.oracle.com/adfm/uimodel"
                version="11.1.1.56.60" id="untitled8PageDef"
                Package="view.pageDefs">
  <parameters/>
  <executables>
    <variableIterator id="variables"/>
  </executables>
  <bindings>
    <eventBinding id="eventBinding"
                  Listener="javax.faces.event.ActionListener">
      <events xmlns="http://xmlns.oracle.com/adfm/contextualEvent">
        <event name="SampleEvent" customPayLoad="Test"/>
      </events>
    </eventBinding>
  </bindings>
  <events xmlns="http://xmlns.oracle.com/adfm/contextualEvent">
    <event name="SampleEvent" customPayLoad="Test"/>
  </events>
</pageDefinition>

You may notice that <events> repeats two times - one under <eventBinding> and another at root level, right inside <pageDefinition>. Please note that, Contextual Event Runtime is interested only in the one which appears inside <eventBinding>. The <events> right inside <pageDefinition> is supposed to be used by design time - while defining Contextual Event using existing events. It acts more like a template. (PS2 release doesn't seems to have this feature, hopefully upcoming release of JDeveloper may have this feature enabled)

Comments

Popular posts from this blog

How to set Bind Variable Values at runtime ?

In this post I'm sharing a couple of approaches for programmatically setting bind variables values at run time. This post is an attempt to explain 'When to use what ?'[ In case if you are familiar with 'Bind Variables' in ADF BC, please refer Section 5.10, Working with Bind Variables in Fusion Developer's Guide ]

1. Set the Bind Variable value using RowSet::setNamedWhereClauseParam(...)

You can use use the setNamedWhereClauseParam(...) method on the ViewObject interface (which extends oracle.jbo.RowSet) to set the value for bind variables. Please note this sets the value on default RowSet. In other words, this doesn't have any effect on the secondary RowSets that you/system generates.
ViewObject vo = am.findViewObject("EmployeesView1"); vo.setNamedWhereClauseParam("bindVarDeptId", new Number(10)); vo.executeQuery();
2. Set the Bind Variable value using ViewObject's VariableValueManager::setVariableValue(...)

VariableValueManager Ma…

Happy New Year 2018 !

We can't go back and change the beginning, but we always can start where we are and change the ending. Believe in yourself and you will be unstoppable!

Wishing you and your family a very happy new year 2018 !!!