+
+ /**
+ * setting the index of the log entry which is replicated to all nodes
+ * @param replicatedToAllIndex
+ */
+ void setReplicatedToAllIndex(long replicatedToAllIndex);
+
+ /**
+ * @return the index of the log entry which is replicated to all nodes
+ */
+ long getReplicatedToAllIndex();
+
+ /**
+ * @return the leader's payload data version.
+ */
+ short getLeaderPayloadVersion();