Displaying the Data - Oracle ADF 11gR2 Development Beginner's Guide - page 165

Let us now add an EL expression to the page that we have created. Here we are going to use
the af:switcher component to display two secions in the employee.jspx page. One is
to display content that displays the employee informaion. The other facet will display the
department informaion.
Time for action - adding an EL expression
1. Add the af:switcher component to the page from the Component palete.
2. Select the switcher component in the page from the Structure window or from
the design view.
3. From the Structure window right-click on the af:switcher component and then
select Insert into the opion to insert a facet.
4. Provide the facet name as first . Repeat the same step to add another facet
named second .
5. In the property inspector, provide the value as first for the defaultFacet
property.
6. Inside the irst facet, add the employee informaion from the Data Controls palete.
Drag-and-drop the EmpVO informaion on to the irst facet.
7. Add the DeptVO to the second facet. Surround the table with a group layout or a
stretch layout based on the requirements of the page.
8. Now add the following EL expression to the facetName property of the switcher:
#{bindings. EmpVO1.estimatedRowCount > 0 ? 'first' : 'second'}