from behavioral.template.abstract_class import AbstractClass


class ConcreteClass1(AbstractClass):
    """
    Concrete classes have to implement all abstract operations of the base
    class. They can also override some operations with a default implementation.
    """

    def required_operations1(self):
        print("ConcreteClass1 says: Implemented Operation1")

    def required_operations2(self):
        print("ConcreteClass1 says: Implemented Operation2")


class ConcreteClass2(AbstractClass):
    """
    Usually, concrete classes override only a fraction of base class' operations.
    """

    def required_operations1(self):
        print("ConcreteClass2 says: Implemented Operation1")

    def required_operations2(self):
        print("ConcreteClass2 says: Implemented Operation2")

    def hook1(self):
        print("ConcreteCLass2 says: Overridden Hook1")