Chapter 8 Introducing ADF Business Components. Introducing ADF Business Components. ADF BC is a Java and XML based framework for developing: Business logic, including validation and default logic Queries Transaction handling Data access
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FROM DEPARTMENTS Departments, EMPLOYEES Employees
This view object would have the following view attributes:
SELECT Departments.DEPARTMENT_ID, Departments.DEPARTMENT_NAMEFROM DEPARTMENTS Departments
SELECT Employees.EMPLOYEE_ID, Employees.FIRST_NAME, Employees.LAST_NAME, Employees.DEPARTMENT_ID,
FROM EMPLOYEES Employees
Using this model, the two view usages are tied together by a link representing a master-detail relationship between them (EmpDeptFkLink). Using this application module, your client application could select a row in AllDepartments, and the ADF BC framework would immediately synchronize DepartmentEmployees so that it would only return employees from the selected department.
This module provides usages of the same two view objects, but the view usages are linked. Your client application could select rows in AllDepartments and Allmployees usages independently.
With this application module, a client application could select rows in DepartmentEmployees and have them automatically synchronized with AllDepartments and could also select rows in AllEmployees independently.
The hands-on practice beginning on page 234 examines a default ADF BC layer.