w

framework/base/ApplicationComponent.php

+<?php
+/**
+ * This file contains the base application component class.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright &copy; 2008-2012 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+/**
+ * ApplicationComponent is the base class for application component classes.
+ *
+ * ApplicationComponent implements the basic methods required by {@link IApplicationComponent}.
+ *
+ * When developing an application component, try to put application component initialization code in
+ * the {@link init()} method instead of the constructor. This has the advantage that
+ * the application component can be customized through application configuration.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @since 2.0
+ */
+abstract class ApplicationComponent extends Component
+{
+	/**
+	 * @var array the behaviors that should be attached to this component.
+	 * The behaviors will be attached to the component when {@link init} is called.
+	 * Please refer to {@link CModel::behaviors} on how to specify the value of this property.
+	 * @since 1.0.2
+	 */
+	public $behaviors = array();
+
+	private $_initialized = false;
+
+	/**
+	 * Initializes the application component.
+	 * This method is required by {@link IApplicationComponent} and is invoked by application.
+	 * If you override this method, make sure to call the parent implementation
+	 * so that the application component can be marked as initialized.
+	 */
+	public function init()
+	{
+		$this->attachBehaviors($this->behaviors);
+		$this->_initialized = true;
+	}
+
+	/**
+	 * Checks if this application component bas been initialized.
+	 * @return boolean whether this application component has been initialized (ie, {@link init()} is invoked).
+	 */
+	public function getIsInitialized()
+	{
+		return $this->_initialized;
+	}
+}