Friday, March 15, 2013

ADF Faces Client Behavior with Attributes

Last month I posted about the basics of creating custom ClientBehavior in ADF Faces. Now it is time to take the next step and enhance that example with ways to set attributes on the JSP client-behavior tag, pass these on to the client-side javascript implementation and use them in the actual functionality.

We'll take the (simplified) example of the previous post that could show a javascript alert and adopt it to get the message from an attribute which we specify in the JSF page using the component. We'll also make sure we can use an EL expression to specify this values (this is the tricky part). We will be able to do something like:
<af:forEach begin="1" end="5" varStatus="vs">
  <af:commandButton text="click to see message #{vs.index}" id="cb">
    <redheap:showAlertBehavior message="This is message #{vs.index}"/>