18.

  

ServiceType

A user interface may use code like that in the previous section directly to include images. The service may also supply useful images and other human-oriented information in a ServiceType entry object. The ServiceType class is defined as follows :

 package net.jini.lookup.entry; public class ServiceType {     public String getDisplayName();     // Return the localized display                                         // name of this service.     public Image getIcon(int iconKind)  // Get an icon for this service.     public String getShortDescription() // Return a localized short                                         // description of this service. } 

The class is supplied with empty implementations , returning null for each method. A service will need to supply a subclass with useful implementations of the methods . This is a useful class that could be used to supply images and information that may be common to a number of different user interfaces for a service, such as a minimized image.