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原型设计模式(Prototype Design Pattern)很有意思, 因为它使用了一种克隆技术来复制实例化的对象. 新对象是通过复制原型实例来创建的. 在这里, 实例是批实例化的具体类.原型设计模式的目的是通过使用克隆来减少实例化对象的开销.与其从一个类实例化新对象, 完全可以使用一个已有实例的克隆.
<?php
abstract class CloneObject
{
public $name;
public $picture;
abstract function __clone();
}
class Boy extends CloneObject
{
public function __construct()
{
$this->face = "handsome";
$this->name = "chenqionghe";
}
public function display()
{
echo ‘look : ‘.$this->face;;
echo ‘<br />‘.$this->name.‘<br />‘;
}
public function __clone() {}
}
$boy = new Boy();
$boy->display();
$cloneBoy = clone $boy;
$cloneBoy->face = "still handsome";
$cloneBoy->display();
look : handsome chenqionghe look : still handsome chenqionghe
<?php
abstract class IPrototype
{
public $eyeColor;
public $winBeat;
public $unitEypes;
abstract function __clone();
}
<?php
include_once(‘IPrototype.php‘);
class MaleProto extends IPrototype
{
const gender = "MALE";
public $mated;
public function __construct()
{
$this->eyeColor = "red";
$this->winBeat = "220";
$this->unitEypes = "760";
}
public function __clone(){}
}
<?php
include_once(‘IPrototype.php‘);
class FemaleProto extends IPrototype
{
const gender = "FEMAIL";
public $fecundity;
public function __construct()
{
$this->eyeColor = "red";
$this->winBeat = "220";
$this->unitEypes = "760";
}
public function __clone(){}
}
<?php
function __autoload($class_name)
{
include_once $class_name.‘.php‘;
}
class Client
{
//用于直接实例化
private $fly1;
private $fly2;
//用于克隆
private $c1Fly;
private $c2Fly;
private $updatedCloneFly;
public function __construct()
{
//实例化
$this->fly1 = new MaleProto();
$this->fly2 = new FemaleProto();
//克隆
$this->c1Fly = clone $this->fly1;
$this->c2Fly = clone $this->fly2;
$this->updatedCloneFly = clone $this->fly2;
//更新克隆
$this->c1Fly->mated = "true";
$this->c2Fly->fecundity = ‘186‘;
$this->updatedCloneFly->eyeColor = "purple";
$this->updatedCloneFly->winBeat = "220";
$this->updatedCloneFly->unitEyes = ‘750‘;
$this->updatedCloneFly->fecundity = ‘92‘;
//通过类型提示方法发送
$this->showFly($this->c1Fly);
$this->showFly($this->c2Fly);
$this->showFly($this->updatedCloneFly);
}
private function showFly(IPrototype $fly)
{
echo "Eye color: ".$fly->eyeColor."<br />";
echo "Wing Beats/second: ".$fly->winBeat."<br />";
echo "Eye units: ".$fly->unitEypes."<br />";
$genderNow = $fly::gender;
echo "Gender: ".$genderNow."<br />";
if($genderNow == "FEMAIL")
{
echo "Number of eggs: ".$fly->fecundity."<hr />";
}
else
{
echo "Mated: ".$fly->mated."<hr />";
}
}
}
$worker = new Client();
Eye color: red Wing Beats/second: 220 Eye units: 760 Gender: MALE Mated: trueEye color: red Wing Beats/second: 220 Eye units: 760 Gender: FEMAIL Number of eggs: 186Eye color: purple Wing Beats/second: 220 Eye units: 760 Gender: FEMAIL Number of eggs: 92
<?php
abstract class IAcmePrototype
{
protected $name;
protected $id;
protected $employeePic;
protected $department;
//部门
abstract function setDept($orgCode);
abstract function getDept();
//名字
public function setName($emName)
{
$this->name = $emName;
}
public function getName()
{
return $this->name;
}
//ID
public function setId($emId)
{
$this->id = $emId;
}
public function getId()
{
return $this->id;
}
//雇员图像
public function setPic($ePic)
{
$this->employeePic = $ePic;
}
public function getPic()
{
return $this->employeePic;
}
abstract function __clone();
}
<?php
include_once(‘IAcmePrototype.php‘);
class Marketing extends IAcmePrototype
{
const UNIT = "Marketing";
private $sales = "sales";
private $promotion = "promotion";
private $strategic = "strategic planning";
public function setDept($orgCode)
{
switch($orgCode)
{
case 101:
$this->department = $this->sales;
break;
case 102:
$this->department = $this->promotion;
break;
case 103:
$this->department = $this->strategic;
break;
default :
$this->department = "未识别的市场部";
}
}
public function getDept()
{
return $this->department;
}
public function __clone() {}
}
<?php
include_once(‘IAcmePrototype.php‘);
class Management extends IAcmePrototype
{
const UNIT = "Management";
private $research = "research";
private $plan = "planning";
private $operations = "operations";
public function setDept($orgCode)
{
switch($orgCode)
{
case 201:
$this->department = $this->research;
break;
case 202:
$this->department = $this->plan;
break;
case 203:
$this->department = $this->operations;
break;
default :
$this->department = "未识别的管理部";
}
}
public function getDept()
{
return $this->department;
}
public function __clone() {}
}
<?php
include_once(‘IAcmePrototype.php‘);
class Engineering extends IAcmePrototype
{
const UNIT = "Engineering";
private $development = "development";
private $design = "design";
private $sysAd = "system administration";
public function setDept($orgCode)
{
switch($orgCode)
{
case 301:
$this->department = $this->development;
break;
case 302:
$this->department = $this->design;
break;
case 303:
$this->department = $this->sysAd;
break;
default :
$this->department = "未识别的工程部";
}
}
public function getDept()
{
return $this->department;
}
public function __clone() {}
}
<?php
function __autoload($class_name)
{
include_once $class_name.‘.php‘;
}
class Client
{
private $market;
private $manage;
private $engineer;
public function __construct()
{
$this->makeConProto();
$Tess = clone $this->market;
$this->setEmployee($Tess, "Tess Smith" , 101, ‘ts101-1234‘, ‘tess.png‘);
$this->showEmployee($Tess);
$Jacob = clone $this->market;
$this->setEmployee($Jacob, "Jacob Jones" , 101, ‘jj101-2234‘, ‘jacob.png‘);
$this->showEmployee($Jacob);
$Ricky = clone $this->manage;
$this->setEmployee($Ricky, "Ricky Rodriguez" , 203, ‘rr101-5634‘, ‘ricky.png‘);
$this->showEmployee($Ricky);
$Olivaia = clone $this->engineer;
$this->setEmployee($Olivaia, "Olivaia Perez" , 302, ‘op301-1278‘, ‘olivia.png‘);
$this->showEmployee($Olivaia);
$John = clone $this->engineer;
$this->setEmployee($John, "John Jacson" , 101, ‘jj301-14548‘, ‘john.png‘);
$this->showEmployee($John);
}
private function makeConProto()
{
$this->market = new Marketing();
$this->manage = new Management();
$this->engineer = new Engineering();
}
private function showEmployee(IAcmePrototype $employeeNow)
{
$px = $employeeNow->getPic();
echo "<img src=$px width=‘150‘ height=‘150‘ /><br />";
echo $employeeNow->getName().‘<br />‘;
echo $employeeNow->getDept().‘:‘.$employeeNow::UNIT.‘<br />‘;
echo $employeeNow->getId().‘<hr />‘;
}
private function setEmployee(IAcmePrototype $employeeNow, $nm, $dp, $id, $px)
{
$employeeNow->setName($nm);
$employeeNow->setDept($dp);
$employeeNow->setId($id);
$employeeNow->setPic($px);
}
}
$worker = new Client();
Tess Smith sales:Marketing ts101-1234 Jacob Jones sales:Marketing jj101-2234 Ricky Rodriguez operations:Management rr101-5634 Olivaia Perez design:Engineering op301-1278 John Jacson 未识别的工程部:Engineering jj301-14548
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原文地址：http://www.cnblogs.com/chenqionghe/p/4772312.html
