+ protected final function getIncomingQueueInstance () {
+ return $this->incomingQueueInstance;
+ }
+
+ /**
+ * Setter for incoming raw data/items queue
+ *
+ * @param $incomingQueueInstance The incoming raw data/items queue instance
+ * @return void
+ */
+ private final function setIncomingQueueInstance (Stackable $incomingQueueInstance) {
+ $this->incomingQueueInstance = $incomingQueueInstance;