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Java Design Pattern cainiao series (10) template method pattern modeling and implementation Template Method: defines the skeleton of an algorithm in a Method, and delays some steps to the subclass. The template method allows the subclass to redefine some steps in the algorithm without changing the algorithm structure

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The so-called template method mode defines an algorithm framework in the abstract base class, and the steps in the framework are implemented by the derived classes. The benefit of the template method mode is that operations with the same code are upgraded to abstract base classes, and only differentiated code is implemented in the derived classes, thus minimizing the existence of duplicate code. Note that t

Template Method Mode Definition: defines the skeleton of an algorithm in an operation, and delays some steps to the subclass. The template method allows the subclass to redefine certain steps of an algorithm without changing the structure of an algorithm. For example, the exam copied by student A and student B is very similar. Except for different answers, the other questions are the same. If the instructor

void Main (string[] args) {3 New Man (); 4 m.buy (); 5 }6 }Output Result:1 Welcome to the BMW 4S shop, I'll introduce you to the car you chose 2 appearance: Hatchback, family-style double kidney grid, typical BMW face 3 Engine: 2. 0L Double Vortex tube single turbocharged engine 4 interior: ... 5 This car as a whole please look at this, but the color can choose, you want white or red it? 6 WhiteIn this way, my car-buying journey is over. Also has a new understanding of the

Original http://blog.csdn.net/ztz0223/article/details/7603041 I have already talked about some modeling operations in IBM RSA (IBM Rational Software Architect) V8 (v8.04). For details, refer to the following link: One of ibm rsa (IBM Rational Software Architect) V8 learning, installing ibm rsa (IBM Rational Software Architect) V8 learning 2 new project ibm rsa (IBM Rational Software Architect) v8 3 C ++ class diagram ibm rsa (IBM Rational Software Architect) V8 modeling 4 C ++ class d

The template method pattern is a very simple pattern because it uses only the inheritance relationship.Template Method Mode: Defines the skeleton of an algorithm in an operation, and extends some of the steps into subclasses. Enables subclasses to redefine some specific steps of the algorithm without altering the structure of an algorithm.Let's look at the structure of this simple pattern:1) Abstract class: Defines one or more abstract methods for spe

Applicable Scenariosin some classes of algorithms, the same method is used, resulting in code duplication. control subclass extensions, subclasses must adhere to algorithmic rules. disadvantage Each different implementation needs to define a subclass, which leads to an increase in the number of classes and a more abstract design. Advantages The Template method pattern removes duplicate code from sub

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')); }; varaddcondiments=param.addcondiments| |function(){ Throw NewError (' must pass Addcondiments method ')); }; varf=function(){}; F.prototype.init=function() {boilwater (); Brew (); Pourincup (); Addcondiments (); }; returnF;};varCoffee=Beverage ({brew:function() {Console.log (' Brew coffee with boiling water '); }, Pourincup:function() {Console.log (' Pour the coffee into the cup '); }, Addcondiments:function() {Console.log (' Add sugar and milk '); } }

Operation1 () {Console.WriteLine ( " concrete Class A Method 1 implementation " ); public override void Operation2 () {Console.WriteLine ( " concrete Class A Method 2 implementation " ); } } class Bclass:abstractclass { publicoverridevoid Operation1 () { Console.WriteLine ( " Concrete Class B Method 1 Implementation " ); } Public Override void Operation2 () { Console.WriteLine (" Concrete Class B Method 2 implem

Template mode is the skeleton of an algorithm defined in a method, and some steps are deferred to subclasses, and the template method allows subclasses to redefine some of the steps in the algorithm without altering the algorithm structure.Template methods are common in many places, especially when we re-implement many frameworks, and many times we re-implement them based on the

() { System.out.println ("brew coffee with boiling water") ); } protected void addcondiments () { System.out.println ("Add milk and sugar to the coffee");} }3. Tea class, Inherit template class, rewrite brewing, add seasoning method Public class extends refreshtemplate { protectedvoid Brew () { System.out.println ("Soak in boiling water for 5 minutes "); } protected void addcondiments () { System.out.p

[C ++ design mode] template method mode Template mode: defines the algorithm skeleton in an operation and delays some steps to the subclass. According to the example in headfirst design mode, the algorithm framework (process) of tea and coffee is the same, but some algorithms are implemented differently, and some are t

The template method mode, I personally think, is still a design model that is more useful, and is also a more studious and understandable. We will continue to understand it by simulating a scenario. Now let's take a look at the tea process. First, we need to boil a pot of water, then put tea in the teapot, add the boiling water, and wait for the tea to soak. After the previous two discussions, you should ha