eip patterns

maintenance, or when a third-party library is used. Example code: View code // Unified Access to wages Public Interface Salery { String Getsalery ();} // The agent of the technical department, because the technical department does not have access to the company's salary, you need to set up an agent of the human resources department to get the salary Class Teckdepartmentproxy: salery { Private Hrdepartment AHR; Public String Getsalery (){ If (AHR =Null ) {AHR = N

The structure mode discusses the structure of classes and objects. It uses an Inheritance Mechanism to combine interfaces or implementations (class structure mode), or by combining some objects, to implement new functions (object structure mode ). In gof23, there are 7 structural patterns. The specific categories are as follows: Adapter Mode Convert an interface to another interface that the customer wants. The adapter mode allows the classes that

like this, it is indeed too complicated. However, the actual problems are often not so simple and there will be many additional requirements. For example, if all objects have the initialize method, you must ensure that the initialize method is called for normal initialization during object creation, for example, we may need to add additional logic judgment when creating ConcreteObjectA, etc. Different object creation and initialization processes will follow. Based on the above implementation, w

ArticleDirectory I. general concept Ii. Classification I. general concept Behavioral patterns Chain of resp. A way of passing a request between a chain of Objects Command Encapsulate a command request as an object Interpreter A way to include language elements in a program Iterator Sequentially access the elements of a collection Mediator

combination(2) Child object (Leaf): The most basic object that makes up a grouped object(3) grouped objects (composite): Complex objects grouped by child objectsThe key to understanding the combinatorial pattern is to understand the consistency of the combined patterns on the use of individual objects and composite objects, and then we'll talk about the realization of the combinatorial pattern.Combined mode is designed for dynamically creating a UI o

Looking at "C + + Design new thinking", found in the beginning of a large length of the introduction of the Strategy Model (policy), the strategy model is not a classic design pattern, but in fact, in our day-to-day development is essential. Policy, strategy, policy, the meaning here is that the complex function of the class as far as possible to split into a single function of a simple class combination, simple class is only responsible for the simple behavior or a certain aspect of the structu

that the book rental of Life class is very small, perhaps because of the rent, very few people to rent, so the boss decided to lower rents, the life of books in accordance with the rent of the computer class charge. What about this time? Is there already existing computer books rent calculation strategy, at this time we just need to live to book rental calculation strategy for computer books rent calculation strategy will be OK. With this analysis, the policy pattern (strategy) is the pattern f

Data-driven patterns can be used when testing the same workflow for changing data. What is a workflow. Is the model of the workflow. As an example of a valid login workflow, you can establish the following model (workflow), which can be represented by a workflow flowchart: (1) Open the login page, (2) Enter the user name, enter the password, enter the verification code--(3) Submit, system to determine whether the input is correct and (4) login success

Differentiate what is architecture, framework, pattern, and platform, and always feel that these words are too abstract and vague, today we all say what is the architecture, framework, pattern and platform. Some of the individual definitions and distinctions collected from the Web are as follows: Design Patterns 1. Design mode Why should we say design mode first? Because design patterns are the most bas

Differentiate what is architecture, framework, pattern and platform, always feel that these words are too abstract and vague, today, what is the bottom of what is the architecture, framework, pattern and platform?Some of the individual definitions and distinctions collected from the Web are as follows:The Toad concept from hibernation:Design Patterns 1. Design modeWhy do you say design mode first? Because design p