Oracle ADF Certification

I am now an Oracle Certified Application Development Framework Implementation Specialist.

I wrote the exam 1Z0-554 day before yesterday and managed to pass the exam.

My certification status currently is :

Pass Parameter to ActionListener Method

This post illustrates way to send additional parameters to actionListener method.

Any actionListener method accept only one parameter actionEvent. So to pass additional parameter to actionListener method add attribute tag from JSF core. Also set the parameter value to the value that needs to passed to actionListner method.

<af:commandButton text="TestButton" id="cb1"
                        actionListener="#{pageFlowScope.TestTaskflowBean.testButtonActionListener}">
        <f:attribute name="testParam" value="#{'123'}"/>
      </af:commandButton>

Next part is how to retrieve the value ? In order to retrieve the value use the following code :

String param =
        (String)actionEvent.getComponent().getAttributes().get("testParam");

Sample application can be downloaded from ParamToActionListener

Conditional Rendering : Usage of Rendered Attribute and Partial Trigger

In this post we will understand how to render the adf components using the refresh component.In above diagram, B is a child of component A and rendered of B is controlled based on parameter renderBParam value. An action or event from component C updates the renderBParam parameter value. So what needs to be done to show hide the component B ?

Set the partialTrigger of component B to point to id of component C and see what happpens ? Oopps nothing happened ... is partial trigger working ? ... is render attribute working ?

Lets first learn what went wrong which is not allowing it to work and then we will understand how to refresh ( show/hide ) ?

When rendered attribute is set to false for a specific component that component will not be included into the source rendered on the client and all life cycle phases will be skipped for the component in cause.
So, the partialTriggers attribute doesn’t work if set on component B because the component is not available. So refresh another component which is parent of B so that when it refreshed component B gets rendered.

Solution : Surround component B with another parent component .. in our case say A. Now set the partialTrigger of component A to point the id of component C. Whenever C triggers that action/event it refreshed the component A which in turns refresh component B.

ADF UI - How to use af:iterator to implement forms

Using <af:iterator> to implement forms

In this post, I am going to illustrate how you can use the <af:iterator> to implement forms. You can achieve the same by following these steps :- 

1. First of all you need to create the required bindings. Drag and drop the VO as table to create the binding. 

Table code - 

 

Following bindings got created -

 

2. Now drop <af:iterator> from the component Pallete and specify the values for properties  value, rows and var copying from <af:table> that you dropped.

<af:iterator id="i1" value="#{bindings.EmployeesVO1.collectionModel}" var="row"
                  rows="#{bindings.EmployeesVO1.rangeSize}">

3.Now, copy the attributes from table (which are under each column) into the <af:iterator> . Then cut the table code ( don't delete it from structure window or design to protect the bindings ).

4. Arrange all these attributes in your preferred layout and run the page. That's it. You'll see each VO row data one by one. If you've dropped it as editable fields, you can edit them and Commit. Here we are just displaying them.

Application can be downloaded from here .