com.groiss.component

Class ApplicationContext

java.lang.Object

com.groiss.component.ApplicationContext

public class ApplicationContext
extends Object

Handling dependencies between applications. Register and retrieve services. Register a service with the method registerService, retrieve it with getService. Services can be objects containing data or methods, urls. etc. More than one application can register the same service. A preference value is used to select the "best" implementation - the one with the highest number. Normally, not more than two registrations of a service should exist: A default value in the application that needs the service and a full implementation in another application. It is a convention to give the default implementation the preference 10, the full implementation the preference 100.

Constructor Summary

Constructors

Constructor and Description
ApplicationContext()

Method Summary

Modifier and Type	Method and Description
static Object	getService(String serviceid) Get a service by id.
static void	registerService(String serviceid, Object service, int preference) Register a service.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ApplicationContext

public ApplicationContext()

Method Detail

getService

public static Object getService(String serviceid)

Get a service by id.

registerService

public static void registerService(String serviceid,
                                   Object service,
                                   int preference)

Register a service.