public RotateEncryptionKeyRequest withClusterIdentifier(String clusterIdentifier) {
        setClusterIdentifier(clusterIdentifier);
        return this;
    }
<p>
The unique identifier of the cluster that you want to rotate the encryption keys for.
</p>
<p>
Constraints: Must be the name of valid cluster that has encryption enabled.
</p>

@param clusterIdentifier
       The unique identifier of the cluster that you want to rotate the encryption keys for.</p>
       <p>
       Constraints: Must be the name of valid cluster that has encryption enabled.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-redshift/src/main/java/com/amazonaws/services/redshift/model/RotateEncryptionKeyRequest.java