1 files changed, 42 insertions, 0 deletions
diff --git a/framework/Web/UI/IPageStatePersister.php b/framework/Web/UI/IPageStatePersister.php
new file mode 100644
index 00000000..e1c4e8b1
--- /dev/null
+++ b/framework/Web/UI/IPageStatePersister.php
@@ -0,0 +1,42 @@
+<?php
+/**
+ * TPage class file
+ *
+ * @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 System.Web.UI
+ */
+
+/**
+ * IPageStatePersister interface.
+ *
+ * IPageStatePersister interface is required for all page state persister
+ * classes.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @package System.Web.UI
+ * @since 3.1
+ */
+interface IPageStatePersister
+{
+	/**
+	 * @param TPage the page that this persister works for
+	 */
+	public function getPage();
+	/**
+	 * @param TPage the page that this persister works for
+	 */
+	public function setPage(TPage $page);
+	/**
+	 * Saves state to persistent storage.
+	 * @param mixed state to be stored
+	 */
+	public function save($state);
+	/**
+	 * Loads page state from persistent storage
+	 * @return mixed the restored state
+	 */
+	public function load();
+}
+\ No newline at end of file