1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/samples/individualsamples/src/org/apidesign/samples/Singletons.java	Thu Oct 27 21:22:26 2011 +0200
     1.3 @@ -0,0 +1,43 @@
     1.4 +package org.apidesign.samples;
     1.5 +
     1.6 +/** Showing some horrible usages of singletons.
     1.7 + */
     1.8 +public class Singletons {
     1.9 +    static {
    1.10 +        // BEGIN: singleton.no.no
    1.11 +        /** initialize singletons */
    1.12 +        Database.init();
    1.13 +        OfflineQueue.init();
    1.14 +        CreditCardProcessor.init();
    1.15 +        /** use singletons */
    1.16 +        CreditCard c =  new CreditCard(
    1.17 +          "1234 5678 9012 3456", 5, 2008
    1.18 +        );
    1.19 +        c.charge(100);
    1.20 +        // END: singleton.no.no
    1.21 +    }
    1.22 +    
    1.23 +    static final class Database {
    1.24 +        public static void init() {
    1.25 +        }
    1.26 +    }
    1.27 +
    1.28 +    static final class OfflineQueue {
    1.29 +        public static void init() {
    1.30 +        }
    1.31 +    }
    1.32 +    
    1.33 +    static final class CreditCardProcessor {
    1.34 +        public static void init() {
    1.35 +        }
    1.36 +    }
    1.37 +
    1.38 +    private static class CreditCard {
    1.39 +
    1.40 +        public CreditCard(String card, int month, int year) {
    1.41 +        }
    1.42 +
    1.43 +        private void charge(int amount) {
    1.44 +        }
    1.45 +    }
    1.46 +}