+
+ /**
+ * Setter for stacker instanxe
+ *
+ * @param $stackerInstance An instance of an stacker
+ * @return void
+ */
+ public final function setStackerInstance (Stackable $stackerInstance) {
+ $this->stackerInstance = $stackerInstance;
+ }
+
+ /**
+ * Getter for stacker instanxe
+ *
+ * @return $stackerInstance An instance of an stacker
+ */
+ public final function getStackerInstance () {
+ return $this->stackerInstance;
+ }