78

Designing a Service's Interaction Layer

...

Code Example 3.5

Generated WSDL for 

WeatherService

 Interface

Notice that the WSDL represents the 

getWeather

 overloaded methods as two

different SOAP messages, naming one 

getWeather

, which takes an integer for the

zip code as its parameter, and the other 

getWeather2

, which takes a string parame 

ter for the city. As a result, a client interested in obtaining weather information

using a city name invokes the service by calling 

getWeather2

, as shown in Code

Example 3.6.

...

Context ic = new InitialContext();

WeatherWebService weatherSvc = (WeatherWebService)

ic.lookup("java:comp/env/service/WeatherService");

WeatherServiceIntf port = (WeatherServiceIntf)

weatherSvc.getPort(WeatherServiceIntf.class);

String returnValue = port.getWeather2("San Francisco");

...

Code Example 3.6

Using Weather Service Interface with Java to WSDL Approach