public String getSnapshotClusterIdentifier() {
        return this.snapshotClusterIdentifier;
    }
<p>
The unique identifier of the cluster the snapshot was created from. This parameter is required if your IAM user
has a policy containing a snapshot resource element that specifies anything other than * for the cluster name.
</p>
<p>
Constraints: Must be the name of valid cluster.
</p>

@return The unique identifier of the cluster the snapshot was created from. This parameter is required if your
        IAM user has a policy containing a snapshot resource element that specifies anything other than * for the
        cluster name.</p>
        <p>
        Constraints: Must be the name of valid cluster.
aws-java-sdk-redshift/src/main/java/com/amazonaws/services/redshift/model/DeleteClusterSnapshotMessage.java