blackboard decoration

experience reach a certain level, and it also means to summarize a lot of good design experience, however, it may not be the case that "no teacher can do anything", or you can say that, on the basis of level and experience, it is time for the system to learn the "mode, it is helpful to learn the experts' summary and verify your own shortcomings. This series of design patterns learning notes is actually a Learning Record for the book "Java and patterns. Java I/O Library Design Principles In the

Definition of decoration Mode: The decorative pattern is the ability to dynamically extend an object without changing the original class file and using inheritance. It is by creating a wrapper object that is decorated to wrap the real object. Decorator Pattern Chart: Decorator Mode role: (1) the abstract widget (Component) role: gives an abstract interface to the specification of the object to receive the additional responsibility.(2) The specif

Decorator pattern)Also known as the wrapper mode, the decoration mode extends the object functions in a transparent way to the client, and is an alternative to the inheritance relationship.The decoration mode dynamically attaches more responsibilities to an object in a transparent way to the client. In other words, the client does not think there is any difference between objects in

1. decorator: Also known as wrapper mode. The decorator mode extends the object functions in a transparent way to the client. It is an alternative to the inheritance relationship. 2. The decoration mode dynamically attaches more responsibilities to an object in a transparent way to the client. In other words, the client does not feel the difference between objects in decoration and

• Decorative mode, also known as wrapper Mode• The decoration mode extends the object functions in a transparent way to the client. It is an alternative to the inheritance relationship.• The decoration mode dynamically attaches more responsibilities to an object in a transparent manner to the customer. In other words, the client does not think that objects are different before and after

A lot of friends in the decoration, will be installed for the new house one or two phone and community broadband or ADSL, but, this time only to find that the decoration of the phone line and network cable are not used, some can not find the direction of the line, or even the need for the room does not have the right line. At this point, the phone and broadband installation has caused great trouble. When t

12.3 complete solution In order to make the system more flexible and scalable, and overcome the problems brought about by inheritance and reuse, sunny developers used the decoration mode to reconstruct the graphic interface component library design, the basic structure of the central classification is 12-4: Figure 12-4Graphical interface component library structure In Figure 12-4, component acts as the abstract component class, its subclasses window,

Definition: The decoration mode dynamically extends the functions of an object without changing the original class file and using inheritance. It creates a packaging object, that is, decoration, to package a real object. Features: (1) The decoration object has the same interface as the real object. In this way, the client object can interact with the

1. If the cooking frequency at home is very high, try to give up the open kitchen and there will be Oil Fume problems.2. The bathroom, kitchen water treasure, hot water, and quick, convenient to use3. the suction type of the range hood is stronger than that of the European style.4. power outlets can be installed with as many decoration as possible, otherwise there will be tow boards everywhere in the house5. Reserve a power outlet on the side of the t