114 lines
2.5 KiB
PHP
114 lines
2.5 KiB
PHP
<?php
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/**
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* This file is part of the Propel package.
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*
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* @license MIT License
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*/
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/**
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* Simple autoloader for Propel generated model classes.
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* This class implements the singleton pattern.
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*
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* @author Prancois Zaninotto
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* @author Fabien Potencier
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* @version $Revision: 1773 $
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* @package propel.util
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*/
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class PropelAutoloader
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{
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static protected $instance = null;
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protected $classes = array();
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/**
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* Retrieves the singleton instance of this class.
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*
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* @return PropelAutoloader A PropelAutoloader instance.
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*/
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static public function getInstance()
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{
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if (!isset(self::$instance)) {
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self::$instance = new PropelAutoloader();
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}
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return self::$instance;
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}
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/**
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* Register PropelAutoloader in spl autoloader.
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*
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* @return void
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*/
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static public function register()
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{
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ini_set('unserialize_callback_func', 'spl_autoload_call');
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if (false === spl_autoload_register(array(self::getInstance(), 'autoload'))) {
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throw new Exception(sprintf('Unable to register %s::autoload as an autoloading method.', get_class(self::getInstance())));
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}
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}
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/**
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* Unregister PropelAutoloader from spl autoloader.
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*
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* @return void
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*/
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static public function unregister()
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{
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spl_autoload_unregister(array(self::getInstance(), 'autoload'));
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}
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/**
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* Sets the path for a list of classes.
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*
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* @param array $classMap An associative array $className => $classPath
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*/
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public function addClassPaths($classMap)
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{
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$this->classes = array_merge($this->classes, $classMap);
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}
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/**
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* Sets the path for a particular class.
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*
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* @param string $class A PHP class name
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* @param string $path A path (absolute or relative to the include path)
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*/
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public function addClassPath($class, $path)
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{
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$this->classes[$class] = $path;
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}
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/**
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* Returns the path where a particular class can be found.
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*
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* @param string $class A PHP class name
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*
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* @return string|null A path (absolute or relative to the include path)
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*/
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public function getClassPath($class)
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{
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return isset($this->classes[$class]) ? $this->classes[$class] : null;
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}
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/**
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* Handles autoloading of classes that have been registered in this instance
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*
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* @param string $class A class name.
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*
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* @return boolean Returns true if the class has been loaded
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*/
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public function autoload($class)
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{
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if (isset($this->classes[$class])) {
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require $this->classes[$class];
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return true;
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}
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return false;
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}
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}
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