WebSphere Studio Application Developer Version 5 Programming Guide part 79 pps

754 WebSphere Studio Application Developer Version 5 Programming Guide
Figure 23-3 ClearCase preferences dialog
If you click
Advanced Options
and then select the
Operations
tab, you can select
if you want ClearCase to generate backup copies of files you perform an undo
check out operation on. The backup copies will have a .keep extension.
The ClearCase online help in Application Developer contains a detailed
description about each option of the preferences page.
Using ClearCase with Application Developer
This section describes a scenario with two developers, developer 1 and 2,
working on a Web project called ITSOProGuideCCWeb. Developer 1 is assigned the
role of project integrator and is responsible for setting up the environment.
Note: You must be connected to ClearCase for the Advanced Options button
to be active.
Chapter 23. Using ClearCase 755
Developer 1:
 Creates a new VOB, ITSO_VOB
 Creates a new ClearCase project, ITSO_Project
 Joins the ClearCase project by creating views
 Creates a new Web project, ITSOProGuideCCWeb
 Moves the project under ClearCase source control
 Adds a servlet, ServletA
 Checks in the servlet
 Delivers the work to the integration stream
 Makes a baseline
Developer 2:
 Joins the ClearCase project by creating views
 Imports the project into Application Developer

 Adds a servlet, ServletB
 Checks in the servlet
 Verifies that no other developers has modified the project by performing a
Rebase preview operation
 Delivers the work to the integration stream
 Makes a baseline
Developer 1:
 Updates his view to get the latest changes
The setup of this scenario and its flow is shown in Figure 23-4. ClearCase
terminology is used for the tasks.
Figure 23-4 Scenario setup
Developer 2
Developer 1
Make
Baseline
dev1_View
Rebase
Stream
Deliver
Stream
Make
Baseline
Rebase
Stream
Deliver
Stream
dev2_View
ITSO_VOB
ITSO_Project
ITSO_

Project_
Integration
Baselines
dev2_IntegrationView
dev1_IntegrationView
___________________Workstation 1_______________ _____Workstation 2_____
Update
View
Update
View
756 WebSphere Studio Application Developer Version 5 Programming Guide
Note that the integration view is like a window to the integration stream. The
integration stream should be reserved for only that code that has passed the
developer’s inspection and is sharable to the entire team.
Basically, the developer retrieves the latest version of the code from the VOB to
the integration view by using the ClearCase Update View function. Once this is
done the developer can use the Rebase Stream function to update the
development view and start working with the code.
When finished with the changes, the developer delivers the development stream
back to the integration stream. A project integrator (or any of the developers) can
then make a new baseline freezing the latest code changes.
Setting up ClearCase for a new project
Developer 1 (user ID dev1) works on the machine where the ClearCase LT
Server is installed and developer 2 (dev2) works on the machine where only the
ClearCase LT Client is installed.
Creating a new VOB
As developer 1, select
Start -> Programs -> Rational ClearCase LT Server ->
Create VOB
. This brings up the VOB Creation Wizard (Figure 23-5). Enter

ITSO_VOB as the VOB name. Then click
Finish
.
Figure 23-5 Creating new VOB
On the confirmation page, click
OK
. ClearCase now creates a new VOB. Click
Close
on the summary dialog.
Chapter 23. Using ClearCase 757
Creating new ClearCase project
Developer 1 create a new project under ClearCase control:
 As developer 1, select
Start -> Programs -> Rational ClearCase LT Server ->
Rational ClearCase LT Project Explorer
.
 Select
File -> New -> Project
. This opens the New Project Wizard
(Figure 23-6). Enter ITSO_Project as the project name and click
Next
.
Figure 23-6 Creating new project: step 1
 In the Step 2 dialog (Figure 23-7) make sure that
No
is selected. Click
Next
.
Figure 23-7 Creating new project: step 2
758 WebSphere Studio Application Developer Version 5 Programming Guide

 In the Step 3 dialog (Figure 23-8) click
Add
:
– In the Add Baseline dialog, select the component
ITSO_VOB
from the
drop-down list and select
ITSO_VOB_INITIAL
under Baselines.
– Click
OK.
 Click
Next.
Figure 23-8 Creating new project: step 3
 In the Step 4 dialog (Figure 23-9) select
ITSO_VOB
under Make the following
components modifiable. Leave the other values as their defaults. Click
Next
.
Chapter 23. Using ClearCase 759
Figure 23-9 Creating new project: step 4
 In the Step 5 dialog, select
No
and click
Finish
.
 Click
OK
on the confirmation dialog. ClearCase now creates the project and it

shows up in the Project Explorer.
Joining a ClearCase project
The next step for developer 1 is to join the project and create a new Web project
in Application Developer.
 As developer 1, start Application Developer and select
ClearCase -> Connect
to Rational ClearCase
(unless you specified to automatically connect to
ClearCase when Application Developer starts).
 Select
ClearCase Create -> New View
.
 In the View Creation Wizard (Figure 23-10), select
Ye s
to indicate we are
working on a ClearCase project. Expand
projects
and select the
ITSO_Project
. Click
Next
.
760 WebSphere Studio Application Developer Version 5 Programming Guide
Figure 23-10 Creating a new view
 In the Create a Development Stream dialog (Figure 23-11) enter dev1_View
as the development stream name and make sure the integration stream name
is
ITSO_Project_Integration
. Click
Next

.
Figure 23-11 Creating a development stream
Chapter 23. Using ClearCase 761
 In the Choose Location for a Snapshot View (Development View) dialog
(Figure 23-12) change the location to C:\ITSO\dev1_View. Click
Next
and click
Ye s
on the confirmation dialog.
Figure 23-12 Specifying location for development view
 In the Choose Location for a Snapshot View (Integration View) dialog
(Figure 23-13) change the location to C:\ITSO\dev1_IntegrationView. Click
Next.
Figure 23-13 Specifying location for integration view
762 WebSphere Studio Application Developer Version 5 Programming Guide
 In the Choose Components dialog, leave the
ITSO_VOB
selected and make
sure
Start component browser after creating view
is deselected. Click
Finish
.
 In the Confirmation dialog (Figure 23-14) click
OK.
Figure 23-14 View creation confirmation dialog
 In the View Creation Status dialog that is displayed after the views are
created, click
OK
.

Creating a Web project
Developer 1 has now created necessary views and joined the project. The next
task is to create a Web project and add it to ClearCase control
 As developer 1, open the Web perspective and select
File -> New -> Web
Project
. In the Create a Web Project dialog, enter ITSOProGuideCCWeb as
project name and make sure the
Use Default
location is selected (this is a
directory under the Application Developer workspace and is different from the
ClearCase view locations). Click
Next
.
 On the J2EE Settings page, select
New
and enter ITSOProGuideCCEAR as the
name for the Enterprise application project. Click
Finish
.
Adding a project to ClearCase source control
To add the new project under ClearCase control:
 As developer 1, select the
ITSOProGuideCCEAR
project in the J2EE
Navigator view and select
Team -> Share Project
from the context menu.
 In the Share Project dialog, select
Rational ClearCase

and click
Next
.
Chapter 23. Using ClearCase 763
 In the Move Project Into a ClearCase VOB dialog (Figure 23-15) click
Browse

and select C:\ITSO\dev1_View\ITSO_VOB. Click
OK
and then
Finish
.
Figure 23-15 Moving project into ClearCase
 In the Add Elements to Source Control (Figure 23-16) leave all items selected
and deselect
Keep checked out
. Click OK.
Figure 23-16 Specifying elements to add to source control
 In the Select Activity dialog (Figure 23-17) select
New
and enter Developer 1
adds project to source control. Click
OK
to return and then click
OK
to
continue. The EAR project is now added to ClearCase source control.