Databases Reference
In-Depth Information
5.
Click on the
Next >
buton to change the
Atributes
seings for the view object.
Currently, we do not have to make any changes, so we can move forward.
6.
The next screen will display the SQL query that will be used to retrieve informaion
from the
DEPT
table through the
DeptEO
object. You cannot change the query if the
data source for the view object is an enity object. You have an opion to update the
Where:
and the
Order By:
clause.
The
Binding:
opion will help you to choose the type of binding to be used for
the view object. The
Order By:
opion is provided in order to see the data sorted
column-wise:
7.
In the next screen, you can choose to create a
bind variable
to pass to the view
object query. The bind variable is helpful in retrieving the values from the data
source at runime. It is used as placeholders in a
WHERE
clause of a query or in
combinaion with view criteria.
A
view
criterion is a named
WHERE
clause added to the view object which is applied
at runime based on our business needs.
8.
The next screen can be used to generate Java classes for the view object. The Java
classes are used to override the framework code and do some advanced operaions
for the view object—this will be explained in
Chapter 11
,
Advanced Features of ADF
.
Search WWH ::
Custom Search