' rowKeyStr is and unknown property '

I ask this question in order to better understand the JDev 11.1.1.0.2 links. When you browse Oracle magazine Sept/Oct article from Steve Muench, "task and you will receive," af: setActionListener pass a parameter:

in: #{bindings. Departments.rowKeyStr}
in: #{requestScope.rowKeyStr}

"And these appear as warnings, ' is rowKeyStr and unknown property ', but the application works. If I go to the expression builder and go to the bindingdsDepartments section, I can't find rowKeyStr. I guess that's why the warning occurs, but I guess that he doesn't ' need to be there. I can't find any reference to these, and I'm not Java literate. These part of Java, ADF not? If so, can anyone suggest a reference so I have an idea of how to use?
Thank you.
LB

Hello LB.

Citing Frank,.

the EL generator in designtime cannot resolve the string

At the time of the design, the rowKeyStr variable does not exist in the requestScope. That's why you get this warning message. During execution, the variable will be available after the setActionListener is called. You can ignore this warning message.

Kind regards
Amélie Chan

Tags: Java

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