Databases Reference
In-Depth Information
Have a go hero - analyze the application directory
Now the sample applicaion in the JDeveloper has been created. It's ime for you to analyze
all the new changes that you are seeing in the IDE. Look for all the opions and just familiarize
yourself with the applicaion arifacts. Once you are done with your research, answer the
following quesions:
1. What is the extension for the sample applicaion that you have created in this secion?
2. Which file has the
.jpr
extension?
3. What is the folder structure of the applicaion from the root folder?
The overview can be opened by right-clicking on the
application from the
Application Navigator
panel and
selecting
Show Overview
.
Planning your application
You should always plan the applicaion before opening JDeveloper so you know what you
want to build. This, however, requires experience with the concept of ADF.
Proper planning before staring the project is necessary for smooth development of the
components and exposing the services to the UI without any hiccups.
Our high-level goal is to achieve the following:
Create business services for the
Employee
and
Department
objects.
Expose the components through the data controls.
Manage the
Employee
and
Department
informaion from a page.
Connect to a database
Ater planning your applicaion, the next step is to connect to the database. The following
steps show how to do this:
1. Click on the
Create a Database Connecion
buton from
Show
Overview in the
Applicaion
menu.
2. The
Create a Database Connecion
wizard opens. You have the following two
opions to create the connecion:
Application resources
: This connection will be created only for the
current application.
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