Java Reference
In-Depth Information
Summary
In this chapter, we have introduced some of the basic web services concepts so that
you could get acquainted with these technologies before using them to enhance your
Ticket application.
Then, we went through SOAP-based web services that are based on a contract
between the service and the client defined by the WSDL file. SOAP web services are
an excellent option for integrating systems when you have well-defined, abstract op-
erations exposed using standard XML files.
Then we discussed REST services. The key to the REST methodology is to write web
services using an interface that is already well known and widely used: the URI. The
twist here is to identify the key system resources (this can be entities, collections, or
anything else the designer thinks is worthy of having its own URI) and expose them
using standard methods that are mapped to standard methods. In this case, the HTTP
verbs are mapped to resource-specific semantics.
We have discussed a lot about application server resources. In the next chapter, we
will see how to manage them using the Command Line Interface and JBoss client lib-
raries.
