1 files changed, 32 insertions, 0 deletions
diff --git a/framework/Caching/ICacheDependency.php b/framework/Caching/ICacheDependency.php
new file mode 100644
index 00000000..4a81b714
--- /dev/null
+++ b/framework/Caching/ICacheDependency.php
@@ -0,0 +1,32 @@
+<?php
+/**
+ * Core interfaces essential for TApplication class.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @link http://www.pradosoft.com/
+ * @copyright Copyright &copy; 2005-2014 PradoSoft
+ * @license http://www.pradosoft.com/license/
+ * @package Prado\Caching
+ */
+
+namespace Prado\Caching;
+
+/**
+ * ICacheDependency interface.
+ *
+ * This interface must be implemented by classes meant to be used as
+ * cache dependencies.
+ *
+ * Classes implementing this interface must support serialization and unserialization.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @package Prado\Caching
+ * @since 3.0
+ */
+interface ICacheDependency
+{
+	/**
+	 * @return boolean whether the dependency has changed. Defaults to false.
+	 */
+	public function getHasChanged();
+}
+\ No newline at end of file