girdle dependency

Understanding Dependency InjectionYii2.0 uses the idea of dependency injection. It is using this mode that makes YII2 exceptionally flexible and powerful. Do not think this is a very iffy thing, read the following two examples to understand.classsessionstorage{function__construct ($cookieName= ' php_sess_id ') { Session_name($cookieName); Session_Start(); } functionSet$key,$value) { $_session[$key]

PHP Management Dependency (dependency) Relationship tool Composer installation and use, Dependencycomposer PHP Composer Installation System Requirements: Composer need to php5.3.2+ above the environment to run. There are several sensitive PHP settings and compilation flags that are required, but the installer warns you when there are any incompatibilities. For example, the requirement of PHP extension is t

productrepository, and once the latter's API changes, the former will inevitably change as a result.2. It is difficult to test the Productservice method, because Productrepository is not really connected to the database, and also relies on HttpContext, which is tightly coupled.3. HttpContext is currently used for caching, and Productservice will change if a caching mechanism (such as velocity or memcached) is to be replaced.Based on the unreasonable points above, we will reconstruct and optimiz

This article introduces the content is about PHP: Dependency injection, control inversion, dependency inversion principle, has a certain reference value, now share to everyone, the need for friends can refer to Judging the code is good or bad, we have our own standard: cohesion Poly, low coupling. In order to solve this problem, PHP has many excellent design patterns, such as Factory mode, single-case mode

. config, and the connection string in our project is separately placed in a specified file (this is the biggest reason that hinders my use of ASP. NET cache) 2. Sometimes you need to use commands to start the SQL Server cache dependency notification (or throughCodeAnd the configuration file needs some modifications. Recommended articles: ① elaborate on ASP. NET cache and its advanced usage ② ASP. NET cache for petshop ③ Cache container Perform

Self-developed angularjs dependency injection and angularjs dependency Injection Angular dependency injection makes it easy to use. He appeared to "Reduce the coupling problem of computer programs". With reverence and curiosity, I gently walked into angular source code, let's see how he implements it. I also want to write such a awesome function. Therefore, I wro

Data Dependency plays an important role in the relational database design theory. Among them, function dependencies and multi-value dependencies are the most important. How can we understand these two dependencies? After learning for a while, we not only think of the scenario of learning functions in high school. Before learning the concept of a function, we first introduce the concept of ing. The one-to-one ing relationship is called a function.

Dependency GraphAt any time, a file depends on another file, and Webpack this as a dependency between the files . This allows Webpack to receive non-code resources (Non-code Asset) (example or Web fonts), and can use them as dependencies to provide to your application.Webpack start with a list of modules defined in the command line or configuration file to process your application. Starting from these entry

Plugin ~ Dependency between packages in Nuget and dependency in nuget During the Nuget management package, it is possible that package A requires the support of Package B. Before installing Package A, install package B first. This is called dependency, but in NUGET, this concept exists, such as uncle's Lind. DDD. manager package, which depends on Lind. DDD, afte

Before we know what the problem is, how does PHP solve it? Because it is yii2, so we use the YII2 way to introduce briefly, I put YII2 core code to integrate a bit, for PHP to implement the process of dependency injection. In the use of YII2 development of students, to Yii::createobject is not unfamiliar, he is dependent on the injection of an "entrance", I put it to change: $p can imagine the YII2 configuration file, such as $p = [' class ' = ' s

voidtestbeanfactory () {Classpathresource resource=NewClasspathresource ("Beans.xml");//Locate the resource file and parse the bean into beandefinition.Defaultlistablebeanfactory beanfactory =Newdefaultlistablebeanfactory (); Xmlbeandefinitionreader Reader=NewXmlbeandefinitionreader (beanfactory); Reader.loadbeandefinitions (Resource); //loading beandefinition into the containerPerson Person2 = (person) beanfactory.getbean ("Person2"); System.out.println ("Name=" +person2.getname () + "; addres

The relationship between classes and classes plays an important role in understanding object-oriented, and is often asked in interviews before, and I'll introduce you here. The following relationship exists between classes and classes: (1) Generalization (generalization) (2) Association (Association) (3) dependent (Dependency) (4) Aggregation (Aggregation) UML Diagram and application code example: 1. Generalization (generalization) [generalizatio

This article by @ To stay for the original, reproduced please indicate the source.Dependency inversion Principle (dependency inversion principle, hereafter referred to as DIP): Do not rely on instances (concrete classes) programming, dependency abstraction (abstractions, refers to dependent abstract classes and interfaces).understanding of inversion (inversion): usually our high-level components are depende

In the normal Java development, programmers in a class need to rely on other classes of methods, it is usually a new dependent class to invoke the class instance method, the problem is that the new class instance is not a unified management, spring put forward the idea of dependency injection, that is, the dependency class is not instantiated by the programmer, Instead, the spring container helps us to spec

PHP Management Dependency (dependency) Relationship Tool Composer Auto-load (autoload), dependencyautoload For example, assuming that our project wants to use the Monolog log tool, we need to tell composer in Composer.json that we need it: {"Require": { "Monolog/monolog": "1.*"}} After execution: PHP Composer.phar Install OK, now that the installation is done, how to use it? Composer automatically generat

The following classes are designed to have editpsndocaction and refreshpsndocaction this two class,And the final effect I want is:The following explains the process "As shown: Because spring's dependency injection is used in the NC product. So I can call it this way. A bean that calls the refresh button directly、In the Editpsndocaction class, a way of using spring's dependency injection. Assigning a value

($parameters) { $dependencies = Array (); foreach ($parameters as $parameter) { $dependency = $parameter->getclass (); if ($dependency = = null) { if ($parameter->isdefaultvalueavailable ()) { $dependencies [] = $parameter->getdefaultvalue (); } else { throw new Exception ("Can not be resolve class dependency {$parameter->name}"); } } else { $depende

Unity is a dependency injection container, and natural dependency injection is its most important function. From previous discussions, contradictions have focused on unity's intrusion into the object of dependence, which may be the unity in the preview version of the document did not say, plus a foreign cow of an article caused by the consequences. Because Unity can also support non-invasive

Look at the following POM configuration...This I also looked at Maven 3 cookbook after finding some words, anti-launch type of the role.Read the original text (P134. How it works ... ）：Adding the type of apk to the dependency allows the Maven Android plugin to find the Android package of the application.It's not hard to see,This article is from the "Bitterjava" blog, make sure to keep this source http://rickqin.blog.51cto.com/1096449/1738774The role o

Narrow dependence Narrow dependencyMap,filter,union,Join (co-partitioned) formulates which unique sub-rdd The Shard in the parent RDD is specifically assigned toIn parallel, the Rdd shard is independent.Shards that rely on the same ID onlyRange ShardOne to DependencyRange dependencyInside can previously computed partitionThe computation can be merged, can greatly improve the efficiency, writing may be a number of functions, when the execution of the merger into a function, greatly reducing the f