13088674 oracle-adf-11g-learning-application-my-procurement-application

My Procurement Application
JDeveloper Version: 11.1.1.0.0
Audience: Beginners
Prerequisites: Oracle JDeveloper 11g, Oracle Database 10g XE

Business Scenario:

I have developed this sample application to learn Oracle ADF 11g.And in this
documented you will find the steps for developing this complete sample application.
This application manages the procurement activities with in an organization. The
different type of procurement activates handled by this application are:-

• Search for the Registrations.
• Creating Registration and adding item lines to Registration.
• Search item in catalog and categories.
• Edit the existing created registration.
• Search already created registration.
It is best to view this document with View as web layout, whether you are using the
MS Word or the Open office Word Editor.

Terms Used in Application

1) A Registration is created which can later on used to create purchase order.
Users add items in registration.
2) Registration lines are items which are added in registration.
3) Catalog contain categories.
4) Categories contain items.
5) PFI is package, fright and insurance charges.

Following database objects are used in this application:-

CATALOG: - database table which stores catalog details.

CATEGORY: - database table used to store various categories of a catalog.

ITEM: - database table used to store item belongs to different categories.

PFI_DETAILS:- database table used to store Packaging, Freight and Insurance
percentage based on the mode of payment of the item.

REGISTRATION: - database table used to store registration created by users.

REGISTRATION_S: sequence used to generated registration id

REGISTRATION_LINES:- database table used to store goods which are added to
registration.

http://kohlivikram.blogspot.com/

REGISTRATION_LINES_S: used to generate registration line id.

Database Diagram

Complete application along with SQL script can be download from

http://www.4shared.com/file/91772443/17828aab/MyADFLearningApp.html

Screen details: - We have following screens in this application.

Home page: - Allows user to search for the registration. Search page where user
can search for the already created registrations and can navigate to the registration
page to update the registration and add new registration lines in the registration.
User can create the new registration by clicking the “New Registration” button on this
page.


Registration Page: - This page is used to create the new registration. User will
create the new registration details and will edit the existing registration details.
Following are field details for the page.


Field Type and Description Valid values
Region:- Registration Details
Registration Number Unique registration
number.
Procurement Type Static List of values Standard Procurement,
Emergency and
Reimbursable Procurement
Registration status Static List of values Open ,Closed
Urgency Static list of values Normal , Urgent
Total USD Amount Sum of Total USD amount
of the added lines in the
registration
Total PFI Amount Sum of Total PFI amount
of the added lines in the
registration
Region:- Creation Details
Created By Name of the user who
created it
Creation date Date of creation
Requested by User who requested to Full name of employees

create the registration. from HR. Employees table.
Department Name Department to which the
user who requested the
registration

Region :- Registration Lines
Details of the line added to
the registration along with
editing the line and
deleting the line columns

Catalog Categories Page: - This page contains two regions:-
Catalog-category region:- contains catalog table which has categories as its inner
table .
Items region:- shows the item under the categories.

When user clicks on a particular category name, Item table gets refreshed to show
all items under that category. This is achieved using the PPR functionally. User will
navigate to this page when he clicks on the “Add Item” button on the “Registration
page”. On this page, “Search Item” will navigates to “Item list page” and “back
button“ will take us back to “Registration page”.


Item List page: - This page will help the user to search a particular item. User
will navigate to this page from registration page and catalog page after clicking on
“Search Item “button.


Item Details page:- In this page user will specify the quantity of items to be
ordered . User will navigate to this page from Catalog categories page and Item list
page after clicking on product code. Clicking on the button “Add to Registration” will
add the current item from this page with specified quantity to the current
registration. Here the quantity specified should always be greater then or equal to 5.

Application Flow :-

Chapter 1
Creating ADF Workspace & Database Connection

1.1 Creating ADF Workspace
In the application navigator , right click and select “New Application' to create a new
Application based on “Fusion web application(ADF)” in your Jdeveloper 11g. Accept
all other setting as it is and click finish.


Install the database object required for this application in default HR schema. Create
a database connection with your HR schema.

1.2 Creating a Database Connection
Open the Create Database Connection dialogue [File >
New > General > Connections > Database
Connection] .
• Select Application Resources if it is not selected as
the Create Connection In option.
• Enter a name for the connection, select the
connection type, and enter the username and
password.
• Click Test Connection to confirm that you can
connect.
• Click OK if the connection was successful.


• In the Application Navigator, expand the Connections
and Database nodes in the Application Resources
panel to see the database objects.

Chapter 2
Creating Business Service Layer Objects :-
In this learning application, I am using ADF business components previously knows
as BC4J to build our business services layer. Business services components acts as a
communication channel between between an MVC application and a data source
(usually a database). This components implements the O/R mapping and business
rules/validations.

21. Entity Objects required in application :- An entity object is a business
components maps to a single object in the data source. It includes data,business
rules and persistence behavior for database tables used in your application. Each
database column of a table is represented as attribute in entity object. In my
application user is storing data in two tables :-
→ in REGISTRATION table through registration page where user creates/edit new
registration.
→ in REGISTRATION_LINES table through item details page where user add/edit
quantity.

For more conceptual knowledge on entity objects hit
www.oracle.com/technology/documentation/jdev/adf_guidelines_manual.pdf
and read Chapter 3, ADF Business Components in Depth.

So we will create two Entity objects based on above two tables with name
RegistrationEO and RegistrationLinesEO.

Steps to create RegistrationEO

Step 1) Right click on the Model project and select New.
Step 2) In the “New Gallery” window under “Business Tier” select “ADF Business
Components”.
Step 3) Select “Entity Object” from Items and click OK.


Step 4) In the Create Entity Object class, specify package as “model.entity”, Name
as “RegistrationEO”. And select schema object as “REGISTRATION”.


Step 5) Click next up till step 5 and click finish. This finishes the creation of the
entity object RegistrationEO.
Step 6) Generating Entity object java class for custom functionality:-

We need to set the RegistrationId value which comes up from the “Registration_S”
database sequence when new registration is created. Double click RegistrationEO
from the application navigator window and select java option from the code editor
window. Click on the Edit Java Option icon and in the “Select Java Option window,
check the “Generate Entity Object Class”, “Accessors” and “Create Method” check
boxes and click ok. Check out following figure for help


Open the RegistrationEOImpl class and replace the “protected void
create(AttributeList attributeList)” method add following code

import oracle.jbo.server.SequenceImpl;

protected void create(AttributeList attributeList) {
super.create(attributeList);
SequenceImpl s = new
SequenceImpl("REGISTRATION_S",getDBTransaction());
Number seqNum=s.getSequenceNumber();
setRegistrationId(seqNum);
setRegNum("MP" + seqNum);
}

This create method is called when you insert a new row inside your entity object.
This method can be used to initialize default values for the first time entity row is
created.

Step 7) Set up default values for Attributes


In our application in the Registration page, the creation date default value should be
‘current system date’ and registration status field default value should be ‘Open’.
Select the Attributes tab from the code editor window and select “Creation Date”
attribute. Double click it and in the “Edit Attribute” window, check the history column
check box and select “created on” from drop down and click ok.

Again double click the “RegStatus’ attribute and in the “Edit Attrbute” window set the
value = ‘Open’.

Select the ‘ProcType’ attribute and check the Mandatory check box to make this field
required in the UI.

Steps to create RegistrationLinesEO

In a similar fashion you can create entity object RegistrationLinesEO. And add the
following create method in the RegistrationEOImpl class

protected void create(AttributeList attributeList) {
super.create(attributeList);
SequenceImpl s = new
SequenceImpl("REGISTRATION_LINE_S",getDBTransaction());
Number seqNum=s.getSequenceNumber();
setLineId(seqNum);
}

2.2 Creating Entity Association :- Entity association defines the relationship
between two entity objects based on entity attributes. Associations often map to
foreign key relationships between tables in the database. As in our SQL script we
haven't defined any foreign key constraints, we have to manually define the
association between these two entity objects. If the foreign key relation ship exist at
database level , ADF framework will itself create the association. Association allow
you to navigate from one entity instance to either another entity instance or a
collection of related instances.

For more conceptual knowledge on association hit
http://www.oracle.com/technology/oramag/oracle/05-
nov/o65frame.html?_template=/ocom/print

Step 1) Right click the model.entity node and select “New Association”.
Step 2) Specify package as “model.entity.assoc” and Name as 'RegLinesAO”.And click
next.
Step 3) Select “RegistrationId” under RegistrationEO from “Select Source Attribute”
and “RegistrationId” from “RegistrationLinesEO” under “Select Destination Attribute”.
And click on add button.


Step 4) Click next until “step 4 of 5” and then click finish.

2.3 View Objects required in application :- View objects are ADF business
components that collects data from the database based on the SQL query. SQL query
columns map to view attributes in the view object . A view object are either :-
Entity based which means view attributes are mapped to entity object attributes .
SQL based also know as Read only View Objects which are not mapped to entity
attributes.

Thought we can create multiple UI pages based on the same view object, I think we
should create separate view object for individual page because application will be
more maintainable.

We create read only view object for UI pages which only shows data and entity based
view objects for pages which perform DML operations on data. For our application,
we will create following view objects :-

2.3.1 Read only view objects


CatalogVO – to query the CATALOG table which will be used in the Catalog-category
page.
CategoryVO – to query categories table which will be used in the Catalog-category
page.
EmployeesVO – will be used in drop down “Requested By” field in the Registration
page.
ItemListPageVO – will be used in the Item list page.
ItemVO – to be used to get the item details based on the product code from the Item
table. Will be used in the Item details page to set the new row data based on data
fetched by this view object.
RegistrationLinesVO – will be used in the registration page to show the lines details .
SearchPageRegistrationVO – will be used in the Home page.
SearchPageRegistrationLinesVO – will be used in the home page to show the lines
that exist in the already existing registration.

Steps to create the CatalogVO

Step 1) Select model node, right click and select “New View Object”.
Step 2) In the Create View Object window, specify package name as “model.view”
and name as “CatalogVO”. And select “read only access through sql query” radio
button.
Step 3) In query window of step 2 of 9 , specify following query :-
SELECT
CATALOG.CATALOGUE_ID CATALOGUE_ID,
CATALOG.CATALOGUE_NAME CATALOGUE_NAME,
CATALOG.DESCRR DESCRR
FROM
CATALOG

and set Order by as "CATALOGUE_NAME"


Step 4) Click next until step 4 of 9 and then click finish.

In the same fashion create remaining view objects based on following queries:-

CategoryVO
SELECT Category.CATEGORY_ID,
Category.CATALOGUE_ID,
Category.CATEGORY_NAME,
Category.DESCR
FROM CATEGORY Category

EmployeesVO
SELECT Employees.EMPLOYEE_ID,
Employees.FIRST_NAME,
Employees.LAST_NAME,
Employees.EMAIL,
Employees.PHONE_NUMBER,
Employees.HIRE_DATE,

Employees.JOB_ID,
Employees.SALARY,
Employees.COMMISSION_PCT,
Employees.MANAGER_ID,
Employees.DEPARTMENT_ID,
Employees.First_NAME || ' ' || LAST_NAME FULL_NAME
FROM EMPLOYEES Employees

ItemListPageVO
SELECT
CATALOG.CATALOGUE_ID CATALOGUE_ID,
CATALOG.CATALOGUE_NAME CATALOGUE_NAME,
CATALOG.DESCRR DESCRR,
CATEGORY.CATEGORY_ID CATEGORY_ID,
CATEGORY.CATALOGUE_ID CATALOGUE_ID1,
CATEGORY.CATEGORY_NAME CATEGORY_NAME,
CATEGORY.DESCR DESCR,
ITEM.PRODUCT_CODE PRODUCT_CODE,
ITEM.CATEGORY_ID CATEGORY_ID1,
ITEM.DESCR DESCR1,
ITEM.UOM UOM,
ITEM.UNIT_PRICE UNIT_PRICE,
ITEM.CURRENCY CURRENCY
FROM
CATALOG,
CATEGORY,
ITEM
WHERE
CATEGORY.CATALOGUE_ID = CATALOG.CATALOGUE_ID AND ITEM.CATEGORY_ID
= CATEGORY.CATEGORY_ID

ItemVO
SELECT Item.PRODUCT_CODE,
Item.CATEGORY_ID,
Item.DESCR,
Item.UOM,
Item.UNIT_PRICE,
Item.CURRENCY,
Item.Manufacturer
FROM ITEM Item

RegistrationLinesVO
SELECT RegistrationLines.LINE_ID,
RegistrationLines.PRODUCT_CODE,
RegistrationLines.QTY,
RegistrationLines.REGISTRATION_ID,
Item.UNIT_PRICE,
Item.CURRENCY ,
RegistrationLines.QTY*Item.UNIT_PRICE as USD_AMOUNT ,


(PFI.PFI_PER*(RegistrationLines.QTY*Item.UNIT_PRICE))/100 as
USD_PFI_AMOUNT,
(RegistrationLines.QTY*Item.UNIT_PRICE) +
((PFI.PFI_PER*(RegistrationLines.QTY*Item.UNIT_PRICE))/100) as
USD_TOTAL_AMOUNT
FROM
REGISTRATION_LINES RegistrationLines,
Item,
PFI_Details PFI
WHERE
RegistrationLines.PRODUCT_CODE=Item.PRODUCT_CODE(+) AND
Item.MODE_OF_PAY=PFI.MODE_OF_PAY(+)

SearchPageRegistrationVO

SELECT
Registration.REGISTRATION_ID REGISTRATION_ID,
Registration.REG_NUM REG_NUM,
Registration.REG_STATUS REG_STATUS,
Registration.TOTAL_USD_AMT + Registration.TOTAL_PFI_AMT
TOTAL_USD_PFI_AMOUNT,
Registration.CREATION_DATE CREATION_DATE
FROM
Registration

SearchPageRegistrationLinesVO

SELECT
REGISTRATION_LINES.REGISTRATION_ID REGISTRATION_ID,
REGISTRATION_LINES.LINE_ID LINE_ID,
REGISTRATION_LINES.PRODUCT_CODE PRODUCT_CODE,
REGISTRATION_LINES.QTY QTY,
ITEM.UOM UOM,
ITEM.CURRENCY CURRENCY
FROM
REGISTRATION_LINES,ITEM
WHERE
REGISTRATION_LINES.PRODUCT_CODE = ITEM.PRODUCT_CODE
ORDER BY "LINE_ID"

2.3.2 Entity based view objects

RegistrationVO - will be used in the Registration page as new registration is created
and existing are modified. This view object will be based on RegistrationEO entity
object.
ItemDetailsVO – will be used in the Item Details page as new items are added to
registration and existing are modified. This view object will be based on
RegistrationLinesEO entity object.

Steps to create the RegistrationVO


Step 1) Right click the model.view and select “New View Object”.
Step 2) In the Create View Object – Step 1 of 9 , specify the Name as
“RegistrationVO”.
Step 3) In Step 2 of 9, from the Available list, select RegistrationEO from the
model.entity and shift it to the Selected area.
Step 4) In step 3 of 9, shift all the attributes from available list to the selected list
and click next.
Step 5) Click next again, and in the “Step 5 of 9” select “Expert” as SQL mode and
paste the following query in the Query statement.

SELECT RegistrationEO.CONSIGNEE_ID,
RegistrationEO.CREATED_BY,
RegistrationEO.CREATION_DATE,
RegistrationEO.LAST_UPDATED_BY,
RegistrationEO.NOTES_BUYER,
RegistrationEO.PARTY_NOTES,
RegistrationEO.PROC_TYPE,
RegistrationEO.REG_NUM,
RegistrationEO.REG_STATUS,
RegistrationEO.REGISTRATION_ID,
RegistrationEO.REQUESTED_BY,
RegistrationEO.SHIPING_ID,
RegistrationEO.TOTAL_PFI_AMT,
RegistrationEO.TOTAL_USD_AMT,
RegistrationEO.URGENCY,
Emp1.FIRST_NAME || ' ' || Emp1.LAST_NAME LAST_UPADTED_NAME,
Emp2.FIRST_NAME || ' ' || Emp2.LAST_NAME CREATED_BY_NAME,
Emp3.FIRST_NAME || ' ' || Emp3.LAST_NAME CONSIGNEE_NAME,
Emp4.FIRST_NAME || ' ' || Emp4.LAST_NAME SHIPPING_NAME,
Emp5.FIRST_NAME || ' ' || Emp5.LAST_NAME REQUESTED_BY_NAME,
Dept.Department_name
FROM REGISTRATION RegistrationEO, EMPLOYEES Emp1,EMPLOYEES
Emp2,EMPLOYEES Emp3,EMPLOYEES Emp4,
EMPLOYEES Emp5,DEPARTMENTS dept
WHERE RegistrationEO.LAST_UPDATED_BY = Emp1.EMPLOYEE_ID(+)
AND RegistrationEO.CREATED_BY = Emp2.EMPLOYEE_ID(+)
AND RegistrationEO.CONSIGNEE_ID = Emp3.EMPLOYEE_ID(+)
AND RegistrationEO.SHIPING_ID = Emp4.EMPLOYEE_ID(+)
AND RegistrationEO.REQUESTED_BY = Emp5.EMPLOYEE_ID(+)
AND Emp2.Department_id=Dept.Department_id(+)

and click finish .

Similarly create the ItemDetailsVO based on the RegistrationLinesEO with following
query

SELECT RegistrationLinesEO.LINE_ID,
RegistrationLinesEO.PRODUCT_CODE,
RegistrationLinesEO.QTY,
RegistrationLinesEO.REGISTRATION_ID,

ITEM.DESCR,
ITEM.UOM,
ITEM.UNIT_PRICE,
ITEM.CURRENCY,
ITEM.MANUFACTURER
FROM REGISTRATION_LINES RegistrationLinesEO,ITEM
WHERE RegistrationLinesEO.PRODUCT_CODE=ITEM.PRODUCT_CODE.

2.4 View Criteria used in application

A view criteria defines filter information for the rows of a view object collection. We
defined view criteria because they will be used in the search pages we will create for
our application. In our application, we have two search pages, Home page which
allows to search the already created registration. And the Item list page which allows
to search the existing item. For home page, we are using SearchPageRegistrationVO
and for Item list page, we will use ItemListPageVO. So we will create the view criteria
on both of these view objects.

Creating View Criteria on SearchPageRegistrationVO view object.

Step 1) Double click on the SearchPageRegistrationVO.
Step 2) In the overview editor navigation list, select Query and expand the View
Criteria
section.
Step 3) In the View Criteria section, click the Create New View Criteria icon.
Step 4) In the Create View Criteria, specify the name of the view criteria as
SearchPageRegistrationVOCriteria.
Step 5) In the Query Execution Mode drop down list, select Both.
Step 6) Click on “Add Group” button because our view criteria will be based multiple
criteria items.
Step 7) Add registration number,registration status, total USD PFI amount and
creation details as items under the created group as depicted in following diagram:-


Step 8) Click OK to finish creating the view criteria.

Now similarly create the view criteria named “ItemListPageVOCriteria” on
ItemListPageVO with following criteria items.


2.5 List of Values used in Application

There are various LOV components which are used in different pages in our
application. In ADF 11g we define List of values against the VO attributes which are
going to be displayed as LOV in the UI. This a I think one of the great features that
has came up in ADF 11g as we are setting the LOV at the model layer itself. In this
learning application, LOV is used in the
→ Registration page for the requested by field which will show the employees in the
drop down list .
→ And in the Item list page for the Catalog and Category fields in the search region.

Steps to set the “Requested By” field in registration page as LOV


Requested By field in the Registration page shows all the employee name in the drop
down list.

Step 1) Select the RegistrationVO from the model.view package.
Step 2) In the code editor window , select the Attributes tab. And then select the
“RequestedBy” attributes.
Step 3) In the “List of Values: RequestedBy” , click on the new LOV icon(a green
color one)

Step 4) In the “List of Values” window, click on the new “List Data Source”. “View
Accessors” window will appear. In this window select the “EmployeeVO” under
“model.view” from the “Available View Object” and shift to the “View Accessors” list.
And then click OK.


Step 5) In the “List of values” select “EmployeeId” from “List Attributes”. And the
click OK.
Step 6) In the “UI Hints” tab, select and shift “Full Name” from “Available” to
“Selected” list.

In the same fashion
→ create the list of values for the “Catalog name” attribute based on the “CatalogVO”
as “List data source” in the “ItemListPageVO”. In “UI Hints” select appropriate
attributes to be displayed in LOV. Refer following figure to achieve this


–> create the list of values for the “Category name” attribute based on the
“CategoryVO” as “List data source” in the “ItemListPageVO”. In “UI Hints” select
appropriate attributes to be displayed in LOV. Refer following figure to achieve this


2.6 View Links used in the application

View links defines the relationship between the ADF view objects. We need view
links to create the master detail components in the user interface. In our
application, we need to create the view link between following view objects.

Source View Source Destination Destination View Link Description
Object View View Object View name
Attribute Attribute
SearchPageRe Registrati SearchPageRe RegistrationI HomePageVL Used in the
gistrationVO onId gistrationLines d home page
VO to show the
master detail
relationship
as table
between
table for
registration
and its lines.

RegistrationV Registrati RegistrationLin RegistrationP RegistrationP Used in the
O onId esVO ageVL ageVL registration
page to link
the
RegistrationV
O and
RegistrationL
inesVO
CatalogVO Catalogue CategoryVO CatalogueId CatalogCate Used in the
Id goryVL Catalog-
Category
page to
achieve the
master detail
relationship
as table with
in table
where outer
table shows
Catalog and
inner table
shows
categories
within that
table.
CategoryVO CategoryI ItemListpageV CategoryId1 CategoryIte Used in the
d O mVL Catalog-
Category
page, when
user select
the category
from inner
table, the
item table
gets
refreshed
with relevant
items for
that
category.
RegistrationV Registrati ItemDetailsVO RegistrationI ItemDetailsV To link the
O onId d L ItemDetailsV
O and
RegistrationV
O

Steps to create the view link HomePageVL


Step 1) Select the “model.view” node under the “Model-->Application Sources”
sources.
Step 2) In the “Create View Link – Step 1 of 7 “, set the package to
“model.view.link” and name to “HomePageVL”. And click next”.
Step 3) In step 2 of 7, select “RegistrationId” in “SearchPageRegistrationVO” under
“select source Attribute” . And select “RegistrationId” in
“SearchPageRegistrationLinesVO” under “Select destination Attribute”. And then click
on the “Add”. Click “OK” and then click finish.

In a similar fashion, create other view links.

2.7 Application module

Application module are business components that
→ provide data required by application to complete the specific task .The application
module data model contains view object and view link instance. A view object
instance manages a single cache of retrieved data. And view link instance provides a
master-detail relationship between view object instances.
→ provides access to the transaction object. A transaction object maintains pointers
to entity and view caches; it maintains a database connection; and it is responsible
for post, commit, and rollback operations.
→ let developer define the service methods which are defined in the application
module class. These service methods allows you to dynamically add/remove new
view objects to data model at run time and to perform operations on the view cache
result set.

In completing the business service layer objects, we will create the application
module and will add the view objects to the application module. Following steps will
help you to create this:-

Step 1) Select the model node, right click and select “New Application Module”.
Step 2) In Step 1 of 5 , package name should be 'model' and name should be
'MyLearningAM'. And click on next.
Step 3) In step 2 of 5, we will add the view objects and view links in the data model.
From the “Available View Object” pane select the following view objects under
“mode.view” and shift it to the ”Data Model” pane.

View Object to be selected under “Available View “New Instance Name” to be specified.
Objects”
CatalogVO CatalogPageVO
CategoryVO via CataloeCategoryVL CatalogCategoryVO

ItemListPageVO CatalogeCategoryItemVO
CatalogVO CatalogListVO

CategoryList CategoryListVO


EmployeeVO EmployeesListVO

ItemListPageVO ItemListPageVO
ItemVO ItemListVO

RegistrationPageVO RegistrationPageVO
RegistrationLinesVO via RegistrationPageVL RegLinesRegPageVO

ItemDetailsVO via ItemDetailsVL ItemDetailsPageVO

SearchPageRegistrationVO SearchPageRegistrationVO
SearchPageRegistrationLinesVO via HomePageVL SearchPageRegistrationLinesVO

After completing this, your “Data Model” should look like this:-


Step 4) Click on finish.

So you have finished creating the Business service layer using the ADF Business
components. Your model structure should look like this


2.8 Validations

In the Item Details page, we have a validation that quantity should be greater then
five. This can be achieved by putting up this validation at entity level. We should
prefer to put up the validations at entity level rather then at database level using
pl/sql or at client end using the JavaScript. Because in first case, application has to
hit the database every time validation has to be executed which will degrade the
performance of the application by requiring the expensive JDBC calls. And later one
is not suitable, as later on if view technology need to be changed , or what if user
access the data through other user interface.

As Item Details page will be based on the ItemDetailsPageVO which in turn based on
the RegistrationLinesEO, we will put the validation that in the RegistrationLinesEO. So


Step1 ) Select the RegistrationLinesEO under the model.entity and select the
“Attributes”.
Step 2) Select the Qty from the Attribute list and click on the “Add validation Rule”
from the Validation Rules.

Step 3) In the “Add Validation Rules for: Qty” , select the Rule Type as “Compare”.
In the Operator select “Greater Than” and in the “Enter Literal Value” enter 5.
Step 4) Now select the “failure Handling'” tab in the same window and enter the
failure message as “Quantity should be greater the five”. And then click on “OK”.

So this is how you can put up validations at the entity object level.

Chapter 3
Working on the Controller and UI.


We will now work on the controller and user interface for this application. We will
start with building the page template. Page template is one of the very important
features in ADF 11g which let us define the entire page layout. When a page is
created using a template, it will inherit the defined layout. When we make the layout
modifications in the template, all the pages which are based on the template will
automatically reflect the changes.

3.1 Steps to create the page template definition

Step 1) Select the “ViewFolder”, right click it and select “New”.
Step 2) In the Categories tree, select the JSF node, in the Items pane select JSF
Page Template, and click OK. Enter the File Name as “MyPageTemplate”.
Step 3) Click the Facet Definitions tab and click the Add icon to add facets. Facets are
predefined areas on a page template where content can eventually be inserted when
building pages using the template. Add two facets with name “MainPageRegion” and
“ActionButtonBarRegion”.

Step 4) Click on the Attributes tab and click on the Add icon to add attribute with
name PageTitle with type java.lang.string and required as true.
Step 5) Select the “Panel Stretch layout” from the Component Palette and drop it on
the af:pageTemplateDef in the structure window. “Panel Stretch layout” is a

geometry management component. This means that when user resizes the browser,
Panel Stretch layout components will resize it self accordingly along with its child
components. Along with Panel Stretch layout, panelSplitter is the only other
component that supports geometry management.


Now select the Panel Stretch Layout and set following properties in property
inspector:-

StartWidth = 0px
EndWidth = 0px
TopHeight = 95px
BottomHeight = 50px

Step 6) Now expand the bottom facet under the panel Stretch layout and insert a
panelGroupLayout inside that. We are using the panel group layout as it allows its
child to be grouped vertically or horizontally. This is the facet under which we will
add our action command buttons aligned horizontally.
Step 7) Now select the “Facet Ref” from the “common components” and drop it on
the newly created panelGroupLayout in above step. And in the “Insert Facet Ref”
window select “ActionButtonBarRegion”.
Step 8) Select the top facet under the panelStretchLayout and add a
panelGroupLayout. Add an image component under that and then add an outputText
under image. Set the Source property of the image =” /MyProcLogo.JPG”. And set
the value property of the outputText =” My Procurement Application”. And then add
the OutputText component from the common component palette and drop it below
the above created outputText. And set the following properties of the OutputText in
property inspector:-
 Value= # {attrs.PageTitle}. This is actually referring to the attribute we have
created above when we were creating the page template definition.
 InlineStyle(under style) = font-weight:bold; font-size:small; vertical-align:text-
bottom; color:Maroon;

You will get the “MyProcLogo.JPG” from the application build by me.
Step 9) Select the Center and add the panelStretchLayout inside it. And set the
following properties to it in property inspector:-
StartWidth = 0px
EndWidth = 0px
TopHeight = 0px
BottomHeight = 0px

Inside the center facet of the above added panel stretch layout, add a
panelGroupLayout. Inside the panelGroupLayout drop a separator from the layout
component palette.

Under the output text drop the “Facet Ref” component from the common components
palette. And in the “Insert Facet Ref” window select “MainPageRegion”.

Your page template structure should look like as following in structure window.


We have finished creating the page template and now we will proceed to create our
application pages. Here is a plan; we will first create the Catalogue-Category page,
as it is not much dependent on other UI pages. Then we will create the Item List
page i.e. Item Search Page because of the same reason. And then we will create the
Registration page, then Item details page, and finally we will create the Home page
i.e. “Registration Search page”.

3.2 Steps to create the Catalogue Category Page


This page will show the catalogs - categories table as master table and inline detail
table and an items table under the master detail table showing item under selected
category.

3.2.1 Creating the Master – Inline detail table to show Catalog-Categories

Step 1) Select the “ViewController”, right click and select new.
Step 2) In the Categories tree, select the JSF node, in the Items pane selects JSF
Page and click ok.
Step 3) Give the file name as “CatalogeCategoryPage” and select “MyPageTemplate”
from the Use Page template drop down.
Step 4) Select the af:pageTemplate from structure window and set pageTitle=”
Catalogue Category Page”. Also select the af:document nod ein starcture window and
set pageTitle=” Catalogue Category Page”.
Step 5) now select the “Panel Collection” from the layout component palette and
drop it on the “MainPageRegion”. Now select the af:panelCollection from the
structure window and set the ID property to PanelCollectionRN and inline style
property under style from property inspector equal to “width:700px;”
Step 6) Expand the data control palette, and select the CatalogPageVO and drop it
on the af:panelCollection. From the context menu select “Tables->ADF Master Table,
Inline Detail Table”.
Step 7) In the “Edit Tree Binding window” select the model.view.CatalogVO and from
the Available attributes, shift CatalogueName and Descrr to Display Attributes. And
shift back the CategoryId to the Available Attributes.
Step 8) Add a new tree level rule by clicking on the green icon and select
“CategoryVO” and shift the CategoryName and Descr to the display attributes and
shift back the CategoryId to the Avaliable Attributes.
Step 9) Select the Master table from the structure window and set the id properties
= CatalogTbl. Expand the master table.Now set the width(under Apperance) of
“CatalogeName” column to 250 and descrr column to 400.
Step 9) Expand the detail facet under master table and set the id property =
CategoryTbl and width=650px. Expand the CategoryTbl and set following properties
of “CategoryName” column
width = 200 ,ID = CategoryNameCol
And select “Descrr” Column and set its width to 400.
Step 10) Select the “af:outputText – {detailRow.CategoryName}” under the inner
inline table column CategoryName. Right click and select convert from the context
menu. From the convert Ouput Text, select Link from list of components and click ok.
Click Ok in confirm convert window. Now set the Text property of the link to
“#{detailRow.CategoryName}”. And partial submit (under Behavior) property in
property inspector to true. We did this because on category name click, the item
table(will be creating in next step) gets refreshed with the items under this category.
And set the id of the link to CategoryNameLK.
Step 11) Similarly convert the product code output text to link with Text property =
#{row.ProductCode} and action = ‘CreateNewLine’.
Step 11) Right click your catalogue category page, and select “go to page definition”.
Replace
<nodeDefinition DefName="model.view.CategoryVO">
<AttrNames>
<Item Value="CategoryName"/>
<Item Value="Descr"/>
</AttrNames>

</nodeDefinition>

With

<nodeDefinition DefName="model.view.CategoryVO">
<AttrNames>
<Item Value="CategoryName"/>
<Item Value="Descr"/>
<Item Value="CategoryId"/>
</AttrNames>
</nodeDefinition>

You will see that the all column header of the master table as well as detail table are
not properly named. To name them, you should open the relevant view object from
the model.view and then set the Label Text under the control hit to appropriate
name. For example double click the CatalogVO from the model.view. Select the
Attributes and double click on the Catalogue Name. Under the control hints in “Edit
Attribute” window, set the Label Text as “Catalogue Name”. In a same way , set the
label for other columns too. Your custom labels are getting stored in a message
bundle file called “ModelBundle.properties” under the model package.

3.2.2 Create the Item table showing Items under Category using PPR

Partial page rendering is the way by which your full screen will not get refreshed,
rather then only the component which accepts the fired partial page request gets
refreshed.

Step 1) Add a Panel Box under the MainPageRegion. Set the id of the newly created
af:panelBox to ItemPanelRN, Text to Items and width to 650
Step 2) now select the CatalogeCategoryItemVO from the data control palette and
drop it on the above created panel box. From the context menu select tables->ADF
read only table.
Step 3) In the Edit Tables Columns, delete all column except ProductCode, Descr1,
UOM, UnitPrice. And check the Sorting check box to enable users to sort the items.
Step 4) Now select the item table (af:table node) and set the partialTriggers. Select
Edit from partialTriggers. It will open the Edit Property window. Now select the
commandLink- CategoryNameLK and shift it to selected pane and click ok. If some
how “Add to Select” is not enabled then make sure that you have given id for each
component in the command link hierarchy.


We are done with the process by which the Item table will gets refreshed when the
Category Name link is clicked by user. But still the page will show all the Items rather
then showing the items under the selected Category. To achieve this, we will put up a
method in Application module to set the required filter condition.

3.2.3 Filtering items under selected category

Step 1) Generate the application module java class. Double click your application
module under the model node. Select Java section in code editor and then click on
the Edit java options.
Step 2) In the Select Java Option, select “Generated Application Module Class” check
box and click ok.


This will generated your AMImpl class where you can write service methods.
Step 3) Open your AMImpl class by selecting class under “MyLearningAM” node in
Application Navigator. And add following code in that:-

public void getItemInCategory(String CategoryId){
ViewObjectImpl voItem=getCatalogueCategoryItemVO();
voItem.setWhereClause("CATEGORY_ID1 = " + CategoryId);
voItem.executeQuery();
}

Step 4) Again select your “MyLearningAM” node, and then java tab in code editor and
click on the “Edit Application Module Client Interface” . In the “Edit Client Interface”
window, shift the getItemInCategory() method from Available list to Selected list and
click ok.

For the method to be accessible in view layer and to be added to data control
palette, we have to put the method in AM client interface.

Step 5) now you will see that above added method will appear in the data control
palette. Delete the existing <af:commandLink - "#{detailRow.CategoryName}"> and
Select the getItemInCategory and drop it under the CategoryName column and
select MethodsADF Link.

Step 6) In the Edit Action Binding window set parameter value as
#{detailRow.CategoryId}.Now set the following properties on this af:commandLink:-
Id= CategoryNameLK
Text = #{detailRow.CategoryName}
PartialSubmit = true.

Your Catalogue Category page is ready to run.

3.3 Steps to create the Item List Page

This page will help the user to search a particular item. Following are the steps to
create this page:-

Step 1) Create a new jsf page with name “ItemListPage” under the ViewController
project. It should be created based on the above created template.
Step 2) Select the af:pageTemplate and set the pageTemplate to “Item List Page”.
Step 3) Select af:document and set the title property to “Item List Page”.
Step 4) Select the ItemListPageVONamed CriteriaItemListPageVOCriteria and
drop it on the MainPageRegion and select Query”ADF Query Panel with Table”.


Step 5) In the Edit Table Column delete all columns except “CatalogueName”,
”Descrr”, ”CatageoryName”, ”Descr”, ”Product Code”, “Descr1” and “Unit Price”.
Step 6) Select the af:table –resId1 and then set the width to 900.Set the column
width of each column as per requirement.
Step 7) As User will move from this page to the Item details page, we will convert
the af:outputText - #{row.ProductCode} to af:link. So right click it and select
“Convert” option. And select Link form the Convert Output Text window and click on
ok. And in confirm convert window, click ok.
Step 8)Set the Text property of the newly converted link to #{row.ProductCode}.And
the Action property to the 'CreateNewLine'.
Step 9) Inside the above command link add a action listener with
from=#{row.ProductCode} and to=#{requestScope.ProductCode}. To add the action


listener, right click the command link and select the “insert inside af:commandlink-->
ADF Core--> Set Action Listener”.
Step 9) Now select the af:panelHeader and set the text property to “Search Item”.

Your Item List page is ready. Run it check the results.

3.4 Steps to create the Registration Page

So finally the big fish has arrived. Registration page is the one which will allow the
user to create the new registration and to edit the existing one. Following are the
steps to achieve this:-

Registration Details Region

Step 1) Create a new page with name “RegistrationPage” based on the template
“MyPageTemplate”.
Step 2) Set the page title as “Registration Page” and page window title also as
“Registration Page”.
Step 3) Select the Panel Splitter from the layout components and drop it on the
MainPageRegion in the structure window.
Step 4) Select the newly created af:panelSplitter and set the following properties in
the property inspector:-
SplitterPosition = 454, id=”FirstRN”.
Style = width:943px; height:200px;
Step 5) Select the PanelGroupLayout from the layout components and drop it on the
first facet of above created panelSplitter. Select the newly created panelGroup and
set the layout property as “scroll”.
Step 6) Inside the panel group layout add a output text with value as “Registration
Details”. And below the output text, add the separator from the layout components.
Step 7) Now select the PanelFormLayout from the layout component and drop it
inside the created panel group layout below the separator.
Step 6) Now select the RegistrationPageVORegNum from the data control and drop
it on the above created panel form as TextADF Output Text w/ Label.
Step 7) Select RegistrationPageVOProcType from the data control and drop it below
the above created output text as Single SelectionADF Select One Choice. In the
Edit List Bindings window, select “Fixed List” option. Set the Base data source
attribute as “ProcType” and enter following items in the set of values one by one,
each item seprated by “enter” key:-
 Standard Procurement  Emergency  Reimbursable Procurement and click ok.
Step 8) Select RegistrationPageVORegStatus from the data control and drop it
below the above created ProcType choice list. Again created the fixed list choice box
as above, with values as Open and Closed.
Step 9) Select RegistrationPageVOUrgency from the data control and drop it below
the above created RegStatus choice list with, Created the fixed values choice list with
values Normal and Urgent.
Step 10) Drop the TotalUsdAmt and TotalPfiAmt from RegistrationPageVO in data
control and drop it below the above created Urgency choice list one by one as Text
ADF Output Text w/ Label.

Creation Details Region


Step 1) Select the PanelGroupLayout from the layout components and drop it on the
Second facet of above created panelSplitter “FirstRN”. Select the newly created
panelGroup and set the layout property as “scroll”.
Step 2) Inside the above created panel group layout add an output text with value as
“Creation Details”. And below the output text, add the separator from the layout
components.
Step 3) Select the PanelFormLayout from the layout component and drop it inside
the created panel group layout below the separator.
Step 4) Select the RegistrationPageVOCreatedByName and RegistrationPageVO
CreationDate one by one, from the data control palette and drop it on the above
created panel form as TextADF Output Text w/ Label.
Step 5) Select the RegistrationPageVORequestedBy from the data control and drop
it as Single SelectionADF Select One Choice.
Step 6) Select the RegistrationPageVODepartmentName from the data control
palette and drop it on the above created panel form as TextADF Output Text w/
Label.

Notes to Buyer Region

Step 1) Add a spacer below the “FirstRN” panel splitter. Below that add another panel
splitter with ID= SecondRN and splitterPosition=452.
Step 2) Inside the first facet of the “SecondRN”, add a panel group layout.
Step 3) Inside the panel group layout add a output text with value as “Notes to
Buyer”. And below the output text, add the separator from the layout components.
Step 4) Select the RegistrationPageVONotesBuyer and drop it on the above created
panel group as TextADF Input Text. And set the Rows property of newly created
text box to 5.

Party Notes Region

Create this region in a similar fashion as Notes to Buyer region is created in the
second facet of the SecondRN based on RegistrationPageVOPartyNotes from data
control.

Registration Lines Region

Step 1) Add a spacer below the “SecondRN” and then add an output text with value
= “Registration Lines” in the structure window of registration page.
Step 2) Add a separator below the above created output text.
Step 3) Add a command button below the above separator with Text= “Add Item”
and action =” CatalogPage”. This button will help the user to navigate to the “Catalog
Category Page”.
Step 4) Add another command button below the above command button with text
property =”Search Item” and action=” ItemLitsPage”. This button will lead the user
to Item list page once the action property of the button is set.
Step 5) Now select the RegistrationPageVORegistrationLinesVO from thedata
control palette and drop it on the af:group as TablesADF Read Only table.
Step 6) From the Edit Table Columns window, delete “LineId”, “RegistrationId” and
click ok.


Adding Registration Managed Bean

When user navigates from the Home page to the Registration page by clicking on the
“New Registration” button, the page appear in the new registration creation mode. In
that case “Add Item” buttons and “Search Item” buttons in the Registration Lines
region should be disabled. As the registration it self is not yet created, user should
not be able to add the lines in registration. So we have to disable these buttons for
new registration and when user clicks on the “Save” button buttons should be
enabled. We will achieve this with the help of managed bean.
A managed bean is a regular java bean whose bean properties and methods are bind
to the JSF components. We will use these properties to enable and disable the
command button in our registration page.

Step 1) Right click the view controller project and select new. From items section
select “Java Class”. In the Create Java Class window specify Name as
RegistrationBean and package as “view.beans” and click ok.
Step 2) Add following two variables in the RegistrationBean class and generate
accessors for both the variable(you can generate the accessors by right clicking on it
and selecting ‘Generate Accessors’ from the context menu.
private boolean disableAddItemBtn;
private boolean disableSearchCataBtn;
Step 3) Now we have to declare the above managed bean in the adfc-config.xml file.
Open the adfc-config.xml file and in the code editor window, select Overview from
the bottom of the window. Click on the “Add” icon and specify details as shown
below:-

Step 4) Now we should also specify the initial value of the above created variable,
which should be ‘false’ as “Add Item” and “Search Item” should be enable all the
time except for the new registration request. For this select the Managed Properties
and click on “Add” icon and add following properties:-

Step 5) Select the “Add Item” command button and set the Disabled property =
#{RegistrationBean.disableSearchCataBtn}
And then select the “Search Item” command button and set the Disabled property =


Action Button Bar Region

Step 1) Select the OperationsCommit from the data control palette and drop it on
the ActionButtonBarRegion in the structure window and select operationsADF
Button form the command window. Change the text property of the command button
from Commit to Save and disabled property to false.
Step 2) Insert inside the Save command button two action listener with following
values:-
From= #{false} and To= #{RegistrationBean.disableAddItemBtn}
 From= #{false} and To= #{RegistrationBean.disableSearchCataBtn}
Step 3) Add another command button inside the ActionButtonBarRegion with Text
property = “Home” , Action property =” HomePage” and Immediate property set to
true.

Your registration page layout in structure window should look like:-


This finishes the layout of the Registration page, our big fish. We will now work with
controller to define the flow of the system.

3.5 Creating ‘Edit Registration’ bounded task flow

A task flow is one of the best new features introduced in the ADF 11g. ADF task flow
defines the control flow in the application. The nodes in the application are called
activities representing a logical operation such as displaying a UI page, executing


method in managed bean or application module or calling another task flow. ADF
controller which is build up using task flows is implementation on top of JSF. There
are two types of ADF task flows:-

Bounded task flow: - It is a self contained unit of work that acts as a function. It has
single entry point, a set of input parameters and one or more ways to return control.
Unbounded task flow: - It is a task flow with no boundaries and allows users to start
at any page. Bounded task flows are called with in an unbounded task flow.

In this sample application, we will create one bounded task flow called ‘Edit
registration’. Question arises why? Because Registration page functionality can be
considered as a single unit of work. Registration can either be displaying an existing
registration, or will be used to create new registration. And registration page will be
called up from different view pages. So it is better to create the registration page as
a single unit of work.

For more learning on task flow hit
http://www.oracle.com/technology/oramag/oracle/08-sep/o58frame.html

Steps to create the ‘Edit Registration’ bounded task flow

Step 1) Select the ViewController right click it and select new. Select “ADF Task Flow”
from the Web TierJSF.
Step 2) In the create task flow window, set the file name as ‘Edit-Registration’ and
select the “Create as Bounded Task Flow” check box. Deselect the “page fragment”
check box and click ok.
Step 3) Under the page flow directory your newly created task flow is added. Open it
in code editor.
Step 4) Click on the blank area in the code editor. Select parameters from the
property inspector. And create two input parameters and one output parameter as
follows

Step 5) Add a router activity in the above created task flow with id=”RouteByMode”.
A router activity acts as an IF condition which transfers the control based on the
expression language.


Step 6) Select the above created router activity. From the property inspector under
the common node, specify two cases as below:-

Step 7) Select the Method call activity from the component palette and drop it on the
code editor. Set the ID of the new method activity as “CreateNewRegistration”.
Step 8) Now select the RegistrationPageVOOperationsCreateInsert from the data
control palette and drop it on the CreateNewRegistration method activity.
Step 9) Select a control flow case from component palette and drag it from
RouteByMode to CreateNewRegistration. And set the from-outcome to “Create”
Step 10) Create another method activity with ID as “FindRegitration” . Connect
RouteByMode to FindRegistration with from-outcome as “Edit”.
Step 11) Select the RegistrationPageVOOperations setCurrentRowWithKeyValue
from the data control palette and drop it on the “FindRegistration” method activity.
Now right click the “FindRegistration” activity and select “Edit Bindings”. In the Edit
Action bindings, set the parameter value=#{pageFlowScope.regToEdit} and click ok.
Step 12) Select the RegistrationPage.jspx from the application navigator window, and
drop it on the cod editor.
Step 13) set the control flow from the “CreateNewRegistration” to the
“RegistrationPage”.
Step 14) Again set the control flow from the “FindRegistration” to the
“RegistrationPage”.
Step 15) Drop a “Task Flow Return” activity on the page flow with name property =
“CatalogPage” and id=” GoToCatalogPage”
Step 16) Drop second task flow activity on the page flow with name property =
“ItemListPage” and id=”GoToItemListPage”.
Step 17) Drop yet another task flow activity on the bounded task flow with name
property =”HomePage” and id=”GoToHomePage”
Step 17) set the control flow from “RegistrationPage” to “GoToCatalogPage” with
from-outcome property =”CatalogPage”.
Step 18) set the control flow from “RegistrationPage” to “GoToItemListPage” with
from-outcome property =”ItemLitsPage”.
Step 19) set the control flow from “RegistrationPage” to “GoToHomePage” with from-
outcome property =” HomePage”. This from-outcome property is equivalent to the
action property we have set for the Home command button in the registration page.

Your bounded task flow should look like:-


3.6 Creating Home page

Step 1) Create your home page with name “HomePage” based on the created ADF
template we created.
Step 2) Select SearchPageRegistrationVONamed Criteria
SearchPageRegistrationVOCriteria and drop it on the MainPageRegion in structure
window. And select QueryADF Query panel.


Step 3) Expand the af:PanelGroupLayout and select af:panelHeader. And set the text
property =” Search Registration”.
Step 4) Now select the SearchPageRegistrationVO and drop it on the MainPageRegion
and select the TablesADF Master Table,Inline Detail Table option.


Step 5) From the “Edit Tree Binding” for the “model.view.SearchPageRegistrationVO”,
shift all the attributes from available attributes to display attributes except
“RegistrationID”.
Step 6) Click on the “Add Rule” icon and select “SearchPageRegistrationLinesVO”.
Select “model.view.SearchPageRegistrationLinesVO” rule and set display attributes as
“ProductCode”,”Qty” and “Uom”. And click ok.
Step 7) Select the newly created af:table and set the following properties:-
ID = resultTbl
Width=900.
And set the width of the each column respectively as required.
Step 8) Add a Panel Box layout from the component palette window in the structure
window under MainPageRegion”. And set the text property of the panel box to
“Registration List”.
Steps 9) Add the above created table in step 5 inside the above created panel box.
Step 10) Select the af:query region and set the ResultComponentID property under
the Behavior node to “::resultTbl”. It means that the query results will be shown in
the above created table.


Step 11) Convert the output text for registration number to link with text property
=#{row.RegNum}
Step 12) Inside the Action button bar add a command button with following property
values:-
Text = New Registration
Action =NewOrEdit
Step 13) Right click your command button and select “Set Action Listener” as shown
below:-

In the “Insert Set Action Listener” set From = #{'New'} and To =
#{requestScope.mode}. This action will put the value ‘New’ in the mode attribute.
This mode method is acting as a input parameter for the ‘Edit-Registration’ bounded
task flow we created in step 4 of 3.5 exercise.
Step 14) Insert another action listener with From= #{true} and To=
#{RegistrationBean.disableAddItemBtn}
Insert yet another action listener with From= #{true} and To=

Your final structure window for the home page should look like:-


3.7 Creating Item Details page

So we are now at final page of our application. We will create this page layout and
after that in our last step in creation of this application, we will define the application
flow in ADF controller. Item details page is used to create a new registration line in
the existing reg

Step 1) Create a new jspx page name “ItemDetailsPage” based on created page
template.
Step 2) In the MainPageRegion, add a panel header region.And then set the text
property = #{bindings.RegNum.inputValue}.
Step 3) Inside the header region, add a separator under the panel header.
Step 4) Add a panel splitter component under the separator component. Set the
following property of newly created panel splitter
SplitterPosition = 338
Inline style = width:620px;
Step 5) Select “ProductCode” in RegistrationPageVOItemDetailsPageVO from data
control palette and drop it on the first facet as “ADF Output Text w/ Label”
Step 6) Select “Qty” in RegistrationPageVOItemDetailsPageVO from data control
palette and drop it under above output text as ““ADF Input Text w/ Label”.
Step 7) Select “UnitPrice” in RegistrationPageVOItemDetailsPageVO from data
control palette and drop it on the first facet as “ADF Output Text w/ Label”
Step 8) Under the second facet of the panel splitter, drop the “Uom”, “Currency” and
“Descr” in RegistrationPageVOItemDetailsPageVO from data control palette and
drop it under above output text as ““ADF Input Text w/ Label”.
Step 9) Select OperationsCommit from the data control palette and drop it inside
the ActionButtonBarRegion as adf button with Text = ‘Save’ and action =’
SaveRegLine’. And add another command button inside the ActionButtonBarRegion
with Text=’Cancel’ and Action=’ SaveRegLine’. So the Save button will commit the

data as well as navigate to the Registration page, but cancel will just navigate to
registration page. Now in both the command button add action listener with From=
#{'Edit'} and To= #{requestScope.mode}

And your layout for the page Item details is ready.

3.8 Define Application flow in ADF Controller

Step 1) Open the ViewControllerWeb ContentPage Flow and open adfc-config in
the code editor.
Step 2) Select the HomePage.jspx from the application navigator and drop it in the
code editor.
Step 3) Now select the bounded task flow we have created “Edit Registration” from
Page Flows folder and drop it on the code editor. It will show an error on it as the
parameters expected by the bounded page flow has not been set yet.
Step 4) Select the “Edit-Registration” and in the property inspector under the
parameter node set the value=#{requestScope.mode} for ‘mode’ parameter and
value=#{requestScope.regToEdit} for the regToEdit parameter. And define the out
parameter ‘regToEdit’ with value= #{pageFlowScope.regToEdit}.

Step 5) Select the “Control Flow Case” from control flow in component palette, drag
& drop it from “HomePage” activity to “Edit-Registration” activity. And set the from-
outcome property to “NewOrEdit”. This NewOrEdit is the action property we set for
the ‘NewRegistration’ command button.
Step 6) Select the CatalogueCategoryPage.jspx from the application navigator
window and drop it on the code editor.
Step 7) Select the “Control Flow Case” from control flow and drag & drop it from
“Edit-Registration” activity to “CatalogeCategoryPage” activity with from-outcome to
“CatalogPage”.

Run your application and see if you can create a new registration. Verify that the
Creation date; Registration Number fields are getting shown with default values.
Check if the required indicator is appearing in the UI. We have done this setting at
the RegsitrationEO entity level.


Let’s proceed now with updating page flow so that user can add lines in the
registration.

Step 8) Select a method activity from the component palette and drop it on the adfc-
config.xml in code editor with id=’ CreateNewLine’. Now select the
RegistrationPageVOItemDetailsPageVOOperationsCreateInsert and drop it on
the newly created method activity ‘CreateNewLine’. CreateInsert operation insert a
new blank row in the entity object.
Step 9) Select the ‘Control Flow case’ from the component palette, drag & drop it
from ‘CatalogueCategoryPage’ to ‘CreateNewLine’ activity with from-outcome
property= ‘CreateNewLine’.
Step 11) Now as the item details page gets rendered, it gets rendered with the
details of the item selected in the catalogue category page. To display these details
on the item details page we will set the required details in the blank row created in
ItemDetailsPageVO in step 8. To achieve this we will write a custom method in
application module Impl class which will set the required item details in the
ItemDetailsPageVO. Add the following code in your application module Impl class:-

public void initilizeNewRegLines(String productCode,String regId) {
ViewObjectImpl itemVO=getItemListVO();
String clause ="PRODUCT_CODE = '" + productCode + "'";
itemVO.setWhereClause(clause);
itemVO.executeQuery();
itemVO.setCurrentRowAtRangeIndex(0);
ItemVORowImpl itemRow=(ItemVORowImpl)itemVO.getCurrentRow();
ViewObjectImpl newItemLineVO=this.getItemDetailsPageVO();
ItemDetailsVORowImpl
newGoodsLineRow=(ItemDetailsVORowImpl)newItemLineVO.getCurrentRow();
newGoodsLineRow.setProductCode(productCode);
Number unitPrice=itemRow.getUnitPrice();
String uom= itemRow.getUom();
String currency= itemRow.getCurrency();
String manufacturer = itemRow.getManufacturer();
if(unitPrice!=null)
newGoodsLineRow.setUnitPrice(unitPrice);
if(uom!=null)
newGoodsLineRow.setUom(uom);
if(currency!=null)
newGoodsLineRow.setCurrency(currency);
if(manufacturer!=null)
newGoodsLineRow.setManufacturer(manufacturer);
if(regId!=null)
{
try
{
newGoodsLineRow.setRegistrationId(new Number(regId));
} catch (SQLException e)
{
}
}

}

Add the above method in the application module client Interface.

Step 12) Select the initilizeNewRegLines from the data control palette and drop it on
the adfc-config.xml in code editor. In the “Edit Action Binding” under the parameter
section specify values as

Step 13) Select the flow control from the component palette, drag & drop it from
‘CreateNewLine’ to ‘initilizeNewRegLines’ activity with from-outcome property=
‘’CreateInsert’.
Step 14) Select the ItemDetailsPage from the application navigator, drag and drop it
in the adfc-config.xml file in code editor. And define the control flow activity from
‘initilizeNewRegLines’ to ‘ItemDetailsPage’ activity with from-outcome=
initilizeNewRegLines.
Step 15) Define a control flow from ItemDetailsPage view activity to Edit-Registration
task flow call activity with from-outcome= SaveRegLine. And then define a control
flow from the “Edit-Registration” to “HomePage” with from-outcome= HomePage.

Run your application, with home page, you should be able to create and save the
registration. And then add the new line by clicking the “Add Item” button on the
registration page.

When you run your application and add the registration line in the registration, your
added lines will not be shown in the registration lines table region in the registration
page. To achieve this we have to execute the iterator with which the registration lines
table is associated.

Step 16) Select the RegistrationPageVO-->RegLinesRegPageVO-->Operations--
>Execute from the data control palette and drop it on the adf-config.xml in code
editor. Set the id of the activity to ExecuteRegLines.
Step 17) Delete the control flow case between the ItemDetailsPage and Edit-
Registration.
‘ItemDetailsPage’ to ‘ExecuteRegLines’ activity with from-outcome property=
‘SaveRegLine’.
‘ExecuteRegLines’ to ‘Edit-Registration’ activity with from-outcome property=
‘Execute’. Now run the application, registration lines region in the registration page
will show the added line in the registration.

Another navigation case is to go to item list page from registration page and search
the item. And from Item list page to item details page where we will add the quantity
of the item and navigate back to the Registration page. To achieve this , follow the
following steps:-


Step 20) Select the item list page from the application navigator and drop it on the
adf-config.xml in the code editor.
Step 21) Define control flow from 'Edit-Registration' to 'ItemLitsPage' with from-
outcome='ItemListPage'. And from the 'ItemListPage' to the 'CreateNewLine' method
activity with from-outcome='CreateNewLine'.
Now you will be able add a line in registration from the item list page.

Also we also have to open the exiting registration from the Home page. To achieve
this open your home page. Now under the registration number command link add
the following two action listener under that as :-
1) from="#{'Edit'}" to="#{requestScope.mode}"/>
2) from="#{row.RegistrationId}" to="#{requestScope.regToEdit}"

And finally, as we have the “Total USD Amount” and “Total PFI Amount” in the
registration page which will show the total USD amount of the registration lines and
total PFI(package, fright and insurance) amount of the registration lines added in the
registration. To achieve this we will add the method in the application module custom
Java class which will iterator through the registration lines related to current
registration with the help of view link. Add following code in the application module
Impl class:-

public void updateRegLinesAmt() {
ViewObjectImpl vo = getRegistrationPageVO();
RegistrationVORowImpl currRow=
(RegistrationVORowImpl)vo.getCurrentRow();
RowSet items = (RowSet)currRow.getRegistrationLinesVO();
double totalUsdAmt=0.0,totalPfiAmt=0.0;
String usdAmt=null,pfiAmt=null;
if(items.getEstimatedRowCount()!=0)
{
while (items.hasNext())
{
Row curItem = items.next();
usdAmt=curItem.getAttribute("UsdAmount").toString();
pfiAmt=curItem.getAttribute("UsdPfiAmount").toString();
System.out.println("USD Amount= " + usdAmt + " , pfi Amt=" + pfiAmt);
if(usdAmt!=null)
totalUsdAmt = totalUsdAmt + Double.parseDouble(usdAmt);
if(pfiAmt!=null)
totalPfiAmt = totalPfiAmt + Double.parseDouble(pfiAmt);
}
System.out.println("totalPfiAmt="+totalPfiAmt + " totalUsdAmt= " +
totalUsdAmt);
try {
currRow.setTotalPfiAmt(new Number(totalPfiAmt));
currRow.setTotalUsdAmt(new Number(totalUsdAmt));
} catch (SQLException e) {
}

//commit();
}
}

Expose the above method in the application module client. Now open your Edit
Registration page flow, select the updateRegLinesAmt from the data control palette and
drop it in the code editor window in the 'Edit-Registration' page flow in between the
'FindRegistration' and RegistrationPage activity as shown below:-

Procurement application is ready. Test it and let me know how your feedback on this
and and error in the documentation. I will keep working on the application and will
improve it further and update the document.

Please let me know any errors or suggestions to improve the document.

Happy Learning.

13088674 oracle-adf-11g-learning-application-my-procurement-application

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