interface Service {
void method1();
void method2();
}
interface ServiceFactory {
Service getService();
}
public class Implementation1 implements Service{
public void method1() {
System.out.println("Implementation1 method1");
}
public void method2() {
System.out.println("Implementation1 method2");
}
public static ServiceFactory factory = new ServiceFactory() {
public Service getService() {
return new Implementation1();
}
};
}
public class Implementation2 implements Service{
public void method1() {
System.out.println("Implementation2 method1");
}
public void method2() {
System.out.println("Implementation2 method2");
}
public static ServiceFactory factory = new ServiceFactory() {
public Service getService() {
return new Implementation2();
}
};
}
public class Factories {
public static void serviceConsumer(ServiceFactory fact){
Service s = fact.getService();
s.method1();
s.method2();
}
public static void main(String[] args) {
serviceConsumer(Implementation1.factory);
serviceConsumer(Implementation2.factory);
}
}
