public void setSourceBackupId(String sourceBackupId) {
        this.sourceBackupId = sourceBackupId;
    }
<p>
The identifier (ID) of the backup used to create the cluster. This value exists only when the cluster was created
from a backup.
</p>

@param sourceBackupId
       The identifier (ID) of the backup used to create the cluster. This value exists only when the cluster was
       created from a backup.
aws-java-sdk-cloudhsmv2/src/main/java/com/amazonaws/services/cloudhsmv2/model/Cluster.java