Developing a Composite with a Simple Spring Component

OVERVIEW

This sample contains instructions on creating and testing a simple “HelloWorld” Composite with a Spring Component.

STEP-BY-STEP INSTRUCTIONS

1) Launch Oracle JDeveloper 11g and create a new SOA Application with a name of your choice.

2) Create a new SOA Project within the Application with the name given below and click Next.

3) Choose  “Composite with Spring Context” and click Finish.

4)  Once you click “Finish”, the New Spring Context Dialog launches. Provide the name given below for the Spring Context and click OK.

5) You can now see the newly created Spring Service component within your composite.

6) Next, create a new Java Interface for your Spring Bean. Click on File > New > General, and     Choose Java Interface.

    

7) Name the interface HelloWorldInterface within the following package.

8) If you are asked to specify the Source Folder, choose the “src” folder as shown below.

9) Add one simple method within the interface named greetUser as shown below.

10) Next, create a new Java Class that implements the above interface within the same package and   name it HelloWorld, as shown below.

11) Implement the method within the class to return a greeting message as indicated below.

12) Next, open up the Spring Context file and define the Bean and the SCA service within. The target attribute of the service refers to the id of the bean. The class attribute of the bean refers to the fully qualified name of the implementation class. The type attribute of the service refers to the interface that the spring bean implements.

13) Open up the Composite in the graphical mode and then drag and drop the Spring component onto the Services swim lane. Choose to create a Web Services binding for the component.

14) This completes the development of the composite.

15) Next, deploy the Composite.

16) Navigate to the EM Test Page for the Service and enter an input value for the service. Click “Test Web Service”.

17) The Service will respond with the String “Hello” followed by the input you specified.

18) The flow trace will indicate that the invocation was successful.