From 176ee7e9b6c69cf42e7afeeb03db602237a49bc3 Mon Sep 17 00:00:00 2001
From: xue <>
Date: Tue, 5 Dec 2006 20:38:18 +0000
Subject: Added TApplicationStateCacheDependency.

---
 framework/Caching/TCache.php | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

(limited to 'framework')

diff --git a/framework/Caching/TCache.php b/framework/Caching/TCache.php
index f40737fc..44940d18 100644
--- a/framework/Caching/TCache.php
+++ b/framework/Caching/TCache.php
@@ -598,6 +598,36 @@ class TChainedCacheDependency extends TCacheDependency
 }
 
 
+/**
+ * TApplicationStateCacheDependency class.
+ *
+ * TApplicationStateCacheDependency performs dependency checking based on
+ * the mode of the currently running PRADO application.
+ * The dependency is reportedly as unchanged if and only if the application
+ * is running in performance mode.
+ *
+ * You may chain this dependency together with other dependencies
+ * so that only when the application is not in performance mode the other dependencies
+ * will be checked.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @version $Id$
+ * @package System.Caching
+ * @since 3.1.0
+ */
+class TApplicationStateCacheDependency extends TCacheDependency
+{
+	/**
+	 * Performs the actual dependency checking.
+	 * This method returns true if the currently running application is not in performance mode.
+	 * @return boolean whether the dependency is changed or not.
+	 */
+	public function getHasChanged()
+	{
+		return Prado::getApplication()->getMode()!==TApplicationMode::Performance;
+	}
+}
+
 /**
  * TCacheDependencyList class.
  *
-- 
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