Download Programming WebLogic Web Services

Impl emen ti ng We bLo gic We b Ser vic es
write the business-logic code for the Java implementation class to make the Web Service behave
as you want.
It is assumed that you have read and understood the design issues discussed in Chapter 4,
“Designing WebLogic Web Services,” designed your Web Service and that you know the types
of components you need to create.
Note: BEA recommends that you implement your Web Service operation with only a stateless
session EJB or a Java class, and not with a JMS consumer or producer. In most of the
book, it is assumed that your Web Service is implemented with either an EJB or a Java
class. All JMS-specific information is in its own chapter: Chapter 16, “Creating
JMS-Implemented WebLogic Web Services.”
Examples of Implementing WebLogic Web Services
WebLogic Server includes examples of implementing WebLogic Web Services in the
WL_HOME/samples/server/examples/src/examples/webservices directory, where
WL_HOME refers to the main WebLogic Platform directory. For detailed instructions on how to
build and run the examples, open the following Web page in your browser:
WL_HOME/samples/server/examples/src/examples/webservices/package-summary.html
Implementing a WebLogic Web Service: Main Steps
The following procedure describes the high-level steps to implement a WebLogic Web Service.
Later parts of this document describe the steps in more detail. Although some of the steps are
mandatory, others are optional, depending on the type of Web Service you are implementing.
1. Write the Java code for the back-end components that make up the Web Service.
See “Writing the Java Code for the Components” on page 5-3.
2. If you need to process information in the SOAP request or response or directly access the
SOAP attachments, create SOAP message handlers and handler chains.
See Chapter 12, “Creating SOAP Message Handlers to Intercept the SOAP Message.”
3. If your back-end components use non-built-in data types as parameters or return values,
generate or create the Java code for the data type as well as the serialization class that
converts the data between XML and Java.
See “Implementing Non-Built-In Data Types” on page 5-5.
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Programming WebLogic Web Services