public void setReplicationSourceIdentifier(String replicationSourceIdentifier) {
        this.replicationSourceIdentifier = replicationSourceIdentifier;
    }
<p>
The Amazon Resource Name (ARN) of the source DB instance or DB cluster if this DB cluster is created as a Read
Replica.
</p>

@param replicationSourceIdentifier
       The Amazon Resource Name (ARN) of the source DB instance or DB cluster if this DB cluster is created as a
       Read Replica.
aws-java-sdk-neptune/src/main/java/com/amazonaws/services/neptune/model/CreateDBClusterRequest.java