1: <?php
 2: /**
 3:  * This file contains the base application component class.
 4:  *
 5:  * @author Qiang Xue <qiang.xue@gmail.com>
 6:  * @link http://www.yiiframework.com/
 7:  * @copyright 2008-2013 Yii Software LLC
 8:  * @license http://www.yiiframework.com/license/
 9:  */
10: 
11: /**
12:  * CApplicationComponent is the base class for application component classes.
13:  *
14:  * CApplicationComponent implements the basic methods required by {@link IApplicationComponent}.
15:  *
16:  * When developing an application component, try to put application component initialization code in
17:  * the {@link init()} method instead of the constructor. This has the advantage that
18:  * the application component can be customized through application configuration.
19:  *
20:  * @property boolean $isInitialized Whether this application component has been initialized (ie, {@link init()} is invoked).
21:  *
22:  * @author Qiang Xue <qiang.xue@gmail.com>
23:  * @package system.base
24:  * @since 1.0
25:  */
26: abstract class CApplicationComponent extends CComponent implements IApplicationComponent
27: {
28:     /**
29:      * @var array the behaviors that should be attached to this component.
30:      * The behaviors will be attached to the component when {@link init} is called.
31:      * Please refer to {@link CModel::behaviors} on how to specify the value of this property.
32:      */
33:     public $behaviors=array();
34: 
35:     private $_initialized=false;
36: 
37:     /**
38:      * Initializes the application component.
39:      * This method is required by {@link IApplicationComponent} and is invoked by application.
40:      * If you override this method, make sure to call the parent implementation
41:      * so that the application component can be marked as initialized.
42:      */
43:     public function init()
44:     {
45:         $this->attachBehaviors($this->behaviors);
46:         $this->_initialized=true;
47:     }
48: 
49:     /**
50:      * Checks if this application component has been initialized.
51:      * @return boolean whether this application component has been initialized (ie, {@link init()} is invoked).
52:      */
53:     public function getIsInitialized()
54:     {
55:         return $this->_initialized;
56:     }
57: }
58: