Validating and Using the Model Data - Oracle ADF 11gR2 Development Beginner's Guide - page 108

What just happened?
We have added a script validaion for the Job atribute. The script is writen to do the
following:
1. Assign the current value to the variable called value .
2. The trimmed value is saved in a variable called trim .
3. We are checking if the value of trim is equal to MANAGER .
4. If the trimmed value is equal to MANAGER , then raise a warning from the
property file for the resource bundle that says " No Posiion available to
add more Managers ".
To add the warning message, you will have to select the Failure Handling tab and
click on the magnifying glass icon.
5. The ADF warning is displayed from the resource bundle, and in this case, there is
no need to add a failure-handling message as we are already displaying a warning
to the user.
6. The return statement true or false signifies whether the result for the expression
has passed or failed.
Have a go hero - try more features of Groovy expressions
You should try out more features of Groovy expressions to increase your proficiency in
wriing eicient scriping code and add declaraive validaion without having a separate
class for the Java API.
You may try the following exercise:
1. Try adding an atribute called DeptName to the EmpEO enity object and provide
the default value as DepName- along with the Deptno enity added at the end.
For example, if an employee belongs to department number 50, the DeptName
atribute should default to DepName-50 .
2. List down all the common methods between Java and Groovy expressions,
and note down how these methods differ.