1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/samples/privilegedcreator/src/api/Locks.java	Sat Jun 14 09:51:01 2008 +0200
     1.3 @@ -0,0 +1,58 @@
     1.4 +
     1.5 +package api;
     1.6 +
     1.7 +import java.util.concurrent.Executor;
     1.8 +
     1.9 +/**
    1.10 + *
    1.11 + * @author Jaroslav Tulach <jtulach@netbeans.org>
    1.12 + */
    1.13 +public final class Locks {
    1.14 +    /** let's prefer factory methods */
    1.15 +    private Locks() {
    1.16 +    }
    1.17 +    
    1.18 +    
    1.19 +    public static Executor create() {
    1.20 +        return new Simple();
    1.21 +    }
    1.22 +    
    1.23 +    public static Executor create(boolean fair) {
    1.24 +        return new Fair(fair);
    1.25 +    }
    1.26 +
    1.27 +    // BEGIN: design.less.privileged
    1.28 +    public static Executor create(Configuration config) {
    1.29 +        return new Fair(config.fair);
    1.30 +    }
    1.31 +    
    1.32 +    public static final class Configuration {
    1.33 +        boolean fair;
    1.34 +        int maxWaiters = -1;
    1.35 +        
    1.36 +        public void setFair(boolean fair) {
    1.37 +            this.fair = fair;
    1.38 +        }
    1.39 +        public void setMaxWaiters(int max) {
    1.40 +            this.maxWaiters = max;
    1.41 +        }
    1.42 +    }
    1.43 +    // END: design.less.privileged
    1.44 +    
    1.45 +    private static final class Simple implements Executor {
    1.46 +        public synchronized void execute(Runnable command) {
    1.47 +            command.run();
    1.48 +        }
    1.49 +    }
    1.50 +    private static final class Fair implements Executor {
    1.51 +        private boolean fair;
    1.52 +        
    1.53 +        public Fair(boolean fair) {
    1.54 +            this.fair = fair;
    1.55 +        }
    1.56 +        
    1.57 +        public void execute(Runnable command) {
    1.58 +            // TBD
    1.59 +        }
    1.60 +    }
    1.61 +}