jtulach@385: package org.apidesign.samples;
jtulach@385: 
jtulach@385: /** Showing some horrible usages of singletons.
jtulach@385:  */
jtulach@385: public class Singletons {
jtulach@385:     static {
jtulach@385:         // BEGIN: singleton.no.no
jtulach@385:         /** initialize singletons */
jtulach@385:         Database.init();
jtulach@385:         OfflineQueue.init();
jtulach@385:         CreditCardProcessor.init();
jtulach@385:         /** use singletons */
jtulach@385:         CreditCard c =  new CreditCard(
jtulach@385:           "1234 5678 9012 3456", 5, 2008
jtulach@385:         );
jtulach@385:         c.charge(100);
jtulach@385:         // END: singleton.no.no
jtulach@385:     }
jtulach@385:     
jtulach@385:     static final class Database {
jtulach@385:         public static void init() {
jtulach@385:         }
jtulach@385:     }
jtulach@385: 
jtulach@385:     static final class OfflineQueue {
jtulach@385:         public static void init() {
jtulach@385:         }
jtulach@385:     }
jtulach@385:     
jtulach@385:     static final class CreditCardProcessor {
jtulach@385:         public static void init() {
jtulach@385:         }
jtulach@385:     }
jtulach@385: 
jtulach@385:     private static class CreditCard {
jtulach@385: 
jtulach@385:         public CreditCard(String card, int month, int year) {
jtulach@385:         }
jtulach@385: 
jtulach@385:         private void charge(int amount) {
jtulach@385:         }
jtulach@385:     }
jtulach@385: }