Develop Web services deployment descriptor templates for an EJB implementation

 

Before you begin

You need to create a service endpoint interface and develop a WSDL file before one can develop the deployment descriptor templates because the service endpoint interface and the WSDL file are artifacts that are used to create the templates.

 

Overview

Completing this task creates deployment descriptor templates that describe how to map the service implementation to a EJB. This task is a required step in developing a Web service from an enterprise bean.

To develop the deployment descriptor templates from a WSDL file, obtain the Web address of the WSDL file to use.

If it is a local file and you are running the Windows platform, the URL looks like this: file:drive:\path\file_name.wsdl. If you are using the UNIX platform, the URL looks like this: file:/path/file_name.wsdl. We can also specify local files using the absolute or relative file system path.

When the Web service implementation contains an enterprise bean in an EJB module, the webservices.xml, ibm-webservices-bnd.xmi and ibm-webservices-ext.xmi deployment descriptors, and the Java API for XML-based remote procedure call (JAX-RPC) mapping file are generated in the META-INF subdirectory.

Develop deployment descriptor templates with the following step provided in this task section.

 

Step for this task

Run the WSDL2Java -verbose -role develop-server -container ejb -genJava no wsdlURL command to generate the server deployment descriptor templates and mapping file into the META-INF subdirectory. If the -verbose option is specified, a list of all generated files displays when the command runs.

 

Result

You have deployment descriptor templates that are required to implement a Web service.

 

Example

The following example uses the AddressBookJ2WE.wsdl WSDL

file:

1. Generate the template files with the following command syntax

   WSDL2Java -verbose -role develop-server -container ejb -genJava no AddressBookJ2WE.wsdl 
   

   The deployment descriptor templates are generated into the META-INF subdirectory as follows

   Parsing XML file: AddressBookJ2WE.wsdl
   Generating: META-INF\webservices.xml
   Generating: META-INF\ibm-webservices-bnd.xmi
   Generating: META-INF\ibm-webservices-ext.xmi
   Generating: META-INF\AddressBookJ2WE_mapping.xml
   
   

 

What to do next

Continue to complete the steps that are necessary to develop a Web service from an enterprise bean. The next step is to complete the EJB implementation. When you complete the EJB implementation, you assemble an enterprise bean JAR file that contains the enterprise bean and supporting classes created from a WSDL file.

---

 

Related Tasks

Assembling a Web services-enabled enterprise bean JAR file from a WSDL file
Configuring Web services deployment descriptors
Configuring the webservices.xml deployment descriptor
Configuring the ibm-webservices-bnd.xmi deployment descriptor
Developing new Web services from an existing WSDL file using an EJB implementation
Developing a Web service from an enterprise bean

 

See Also

WSDL2Java command

 

---