Java :: Use A Wrapper Class Around An Object In Flex?

Select a school listed in the first datagrid, and display all the student records /details of that school in the next datagrid. But, since datagrid is editable and requirement mentions : "Use a Wrapper class around the object to get the data, set the same and save. Ensure wrapper is bindable to take into consideration the updates being made to datagrid text fields."

I have an object which is a type of a Data Access Objects i.e. DO.

mySchool:mySchoolDO.

The mySchoolDO is an actionScript class of following code :

public class mySchoolDO
{
public var schoolName:String;
public var schoolLocation:String;

[code]....

The showSchoolStudents will display all the details of students on to the datagrid. But, my datagrid is editable. And, I want to use WRAPPER CLASS around this object such that

a> I can retrieve individual values as present in studentsDO i.e. studentID, studentCourses, studentGender, studentPhone.

b> I shouldbe able to set the values as they are updated in the visual datagrid.

c> Finally save all the data and submit on submit click.