Client
ConcreteLoggingXStrategyA
ConcreteSubject
Subject
ConcreteCommadnA
Memento:originator
Strategy:strategyTemplate Method:concreteclass
Command
Memento
LoggingX
Composite
Observer:subject
LoggingY
Observer:concretesubject
Memento:memento
Application
Strategy:concretestrategy
Command:concrete commandComposite:compositeMemento:caretakerObserver:concrete observer
Command:concrete commandComposite:leavesMemento:caretakerObserver:concrete observer
Command:commandComposite:componentMemento:caretakerObserver:observerTemplate Method:abstractclassStrategy:context
