PHP Builder Builder Mode Learning notes

Idea: Since the interstellar picture is made up of several parts: the map (the terrain and the minerals), the building, the troops. Then we think of them as parts, assembled to be the final product (the whole picture).

Builder (Builder) mode example:

The code is as follows

Copy Code

<?php Specification of interfaces for manufacturing individual parts Interface Builder { Manufacturing Map Parts Public function Buildmappart (); Manufacturing Building Parts Public function Buildbuildingpart (); Manufacturing Force Parts Public function Buildarmypart (); Assemble parts Public function GetResult (); } Actual builder class, such as initialization of a task Class ConcreteBuilder implements Builder { Manufacturing Map Parts Public Function Buildmappart () { Draw a map based on the task set. echo ' map parts n '; } Manufacturing Building Parts Public Function Buildbuildingpart () { Draw the construction according to the task, including the player's and Enemy's Echo ' Building parts n '; } Manufacturing Force Parts Public Function Buildarmypart () { Draw the force according to the task, including the player's and Enemy's Echo ' Force parts n '; } Assemble parts Public Function GetResult () { Stacking and processing all things to form an initialization screen Echo ' assemble parts n '; } } Monitoring class, which is the class that controls the drawing process Class Director { Private properties, determining the builder used Private $builder; constructor method, parameter is the selected builder object Public function __construct ($builder) { Determine which builder to use $this->builder = $builder; } Responsible for the method of construction process, call Builder object method, make all parts Public Function Buildeallpart () { Manufacturing Map Parts $this->builder->buildmappart (); Manufacturing Building Parts $this->builder->buildbuildingpart (); Manufacturing Force Parts $this->builder->buildarmypart (); } } Assuming that the actual builder object we need is initialized according to the task $concreteBuilder = new ConcreteBuilder (); Initialize a supervised object $director = new Director ($concreteBuilder); Make all parts $director->buildeallpart (); Finally let the builder assemble the parts and create the picture $concreteBuilder->getresult (); ?>

Usage Summary: The builder model can separate the process from the details and perform the duties.

Implementation summary: Need a builder interface or abstract class, responsible for the specification of various methods, such as the above builder. Then let the actual builder class implement all the methods, such as the concretebuilder above. At the same time need to be responsible for process management of the supervision class, such as the above Director, responsible for calling the builder of the various parts manufacturing methods. And finally let the builder assemble all the parts.