public void setClusterIdentifier(String clusterIdentifier) {
        this.clusterIdentifier = clusterIdentifier;
    }
<p>
The unique identifier of the cluster that contains the database for which you are requesting credentials. This
parameter is case sensitive.
</p>

@param clusterIdentifier
       The unique identifier of the cluster that contains the database for which you are requesting credentials.
       This parameter is case sensitive.
aws-java-sdk-redshift/src/main/java/com/amazonaws/services/redshift/model/GetClusterCredentialsRequest.java