Services

A service object defines a service. A service provides access to specific business functionality for clients.

A service can contain a number of operations. For example, a calculator program might do addition, subtraction, multiplication and division. Each of those tasks is an operation within the calculator service that a client can use if it understands the interface to the functionality.

In addition to the services that you deploy to an enterprise server, an enterprise server can have one or more system services. The default enterprise server has two system services:

• Deploy: this service enables you to deploy your services automatically from Server Express Remote Development Option to the started enterprise server
• Test: this is an echo service. If you open a Web browser and enter the address of the service listener you will get a HTML response back (when the server is running). This shows that requests are being received.

If you want to deploy to an enterprise server other than the default server, ESDEMO, it must have a deployment service.

A service must have at least one service listener. A service that provides business functionality must have exactly one request handler and one implementation package associated with it. (System services do not require handlers or packages.)

For more information about services, see the chapter Services, Packages and Request Handlers .