Red Hat Application Server, Руководство пользователя

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188 Chapter 24. JOnAS Services
String p1 = (String) ctx.lookup("jonas.service.serv1.p1");
.....
} catch (NamingException e) {
throw new ServiceException("....", e);
}
.....
}
public void start() throws ServiceException {
.....
this.started = true;
}
public void stop() throws ServiceException {
if (this.started) {
this.started = false;
.....
}
}
public boolean isStarted() {
return this.started;
}
public String getName() {
return this.name;
}
public void setName(String name) {
this.name = name;
}
}
24.1.2. Modifying the jonas.properties File
The service is defined and its initialization parameters specified in the
jonas.properties
file. First,
choose a name for the service (for example, "serv1"), then do the following:
•
Add this name to the
jonas.services
property; this property defines the set of services (comma-
separated) that will be started with JOnAS, in the order of this list .
•
Add a
jonas.service.serv1.class
property specifying the service class.
•
Add as many
jonas.service.serv1.XXX
properties specifying the service initialization param-
eters, as will be made available to the service class via the Context argument of the
init
method.
This is illustrated as follows:
jonas.services .......,serv1
jonas.service.serv1.class a.b.MyService
jonas.service.serv1.p1 value
24.1.3. Using the New Service
The new service has been given a name in
jonas.properties
. With this name, it is possible to
get a reference on the service implementation class by using the ServiceManager method:
getService(name)
. The following is an example of accessing a Service:
import org.objectweb.jonas.service.ServiceException;
import org.objectweb.jonas.service.ServiceManager;
MyService sv = null;