+ * @cfg {String} messageProperty [undefined] Optional name of a property within a server-response that represents a user-feedback message.\r
+ */\r
+ /**\r
+ * Abstract method created in extension's buildExtractors impl.\r
+ */\r
+ getTotal: Ext.emptyFn,\r
+ /**\r
+ * Abstract method created in extension's buildExtractors impl.\r
+ */\r
+ getRoot: Ext.emptyFn,\r
+ /**\r
+ * Abstract method created in extension's buildExtractors impl.\r
+ */\r
+ getMessage: Ext.emptyFn,\r
+ /**\r
+ * Abstract method created in extension's buildExtractors impl.\r
+ */\r
+ getSuccess: Ext.emptyFn,\r
+ /**\r
+ * Abstract method created in extension's buildExtractors impl.\r
+ */\r
+ getId: Ext.emptyFn,\r
+ /**\r
+ * Abstract method, overridden in DataReader extensions such as {@link Ext.data.JsonReader} and {@link Ext.data.XmlReader}\r