public Cluster withVpcId(String vpcId) {
        setVpcId(vpcId);
        return this;
    }
<p>
The identifier of the VPC the cluster is in, if the cluster is in a VPC.
</p>

@param vpcId
       The identifier of the VPC the cluster is in, if the cluster is in a VPC.
@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/Cluster.java