voucher design template

the subclass. The template method allows subclasses to redefine some specific steps of an algorithm without altering the structure of an algorithm.roles in the patternAbstract class (AbstractClass): The template method is implemented, and the skeleton of the algorithm is defined.Concrete Class (Concreteclass): Implements the abstract method in the abstract class, has completed the complete algorithm.Public

method1 (); protected abstract void Method2 (); Prevent malicious action, generic template method plus final keyword, do not allow overwrite final public void Templatemethod () { this.method1 (); THIS.METHOD2 (); } /** * Specific template Class 1 */Public class ModelTempleteConcrete1 extends Modeltemplete { @Override protected void Method1 () { System.out.println ("Concrete1 method1 .

First, UML diagramSecond, the conceptTemplate Method Pattern: defines the skeleton of an algorithm in an operation, and delays some steps into subclasses. The template method allows subclasses to redefine some specific steps of the algorithm without altering the structure of an algorithm.Third, the descriptionRole:(1) AbstractClass: abstract class, in fact, is an abstract template, defines and implements a

by subclasses, so subclasses can extend the function in a way that conforms to the opening and shutting principle.Disadvantages:According to our design habits, abstract class is responsible for declaring the most abstract, most general things properties and methods, implementation of the class to complete specific things properties and methods, but the template method mode is reversed, the abstract class d

1. Overview Defines the skeleton of an algorithm in an operation, and defers the step to a subclass. Template methods enable subclasses to redefine some specific steps of an algorithm without altering the structure of an algorithm. 2. Role in the pattern 2.1 Abstract Class (AbstractClass): The template method is implemented, and the skeleton of the algorithm is defined. 2.2 Concrete Class (Concreteclass

The book "Design Patterns" describes this in the template method model: Defines the skeleton of an algorithm in an operation, and delays some steps into subclasses. The steps to redefine the algorithm without changing its structure. My understanding: Defining an abstract class or interface, defining some abstract methods within it (for Templatemethod calls) and a Templatemethod method (not abstract method

defines the skeleton of the algorithm. (2) concrete templates (concrete template): The concrete template is the subclass of the abstract template, which implements the primitive operation in the abstract template. The class diagram for the template method pattern structure

Recently intends to consolidate and organize the design patterns related content. This article is about--template mode!Original: http://www.jb51.net/article/76052.htm--------------------------------------------------------------------------------------------------------------- -----------------------------------This article mainly introduces the template method p

Note This blog excerpt from Qin Xiaobo teacher wrote "design pattern of Zen"Template method Mode car factory made HummerSuppose we were a car company, and now we have customers coming and asking us to build Hummer! Since the superior down orders that will be built, but build Hummer you have to tell us what the car function ah, the customer said: "Can start the car, can stop the car, can ring, can run." "Wel

- housetype.buildhouse (); - } the -}The output of the program is as follows:Build FoundationBuilding Wooden WallsBuilding Pillars with Wood coatingBuild windowsHouse is built.************Build FoundationBuilding Glass WallsBuilding Pillars with glass coatingBuild windowsHouse is built.In the abstract parent class we define buildhouse, a template method that defines the skeleton of the algorithm and defers execution of Buildpillars and buildwal

(primitive method), and the method of summarizing these basic methods is called template method, and the name of the design pattern is from here.The behavior represented by a template method is called a top-level behavior, and its logic is called top-level logic. The static structure diagram for the template method pa

IntroductionReferring to the template, you can not help but think of life "CV template", "Paper template", "Word in the template", etc., in real life, the concept of templates is-there is a prescribed format, and then everyone may according to their own needs or circumstances to update it, such as resume

logic represented by the template method.Whenever you define a new subclass, you should consider which operations must be replaced, which operations are replaceable, and which operations cannot be replaced. Using template patterns can make these responsibilities clear. pros and Cons: Advantages:1 The template method pattern defines the algorithm formally in a c

"Component Collaboration" mode:#现代软件专业分工之后的第一个结果是 "Framework-to-application partitioning", the "component collaboration" mode, which uses late binding to achieve loose coupling between the framework and the application, is a common pattern in collaboration between the two.#典型模式: Template Method, Strategy, observer/eventPart 1 Template Method template mode　　Motive

Author: gnuhpcSource: http://www.cnblogs.com/gnuhpc/ 1. This mode is relatively simple. Here is an example of a bank loan application process (This is not an example in the book.): When applying for a loan, the Bank should check the customer's affairs, for example, the customer's revenue and expenditure records, his credit records obtained from three places, other existing debt information, the stock market value of the borrower, and the expected future income analysis of the borrower. We can