public java.util.List<String> getSecurityGroupIds() {
        return securityGroupIds;
    }
<p>
A list of user-specified security group IDs to be assigned to each node in the DAX cluster. If this parameter is
not specified, DAX assigns the default VPC security group to each node.
</p>

@return A list of user-specified security group IDs to be assigned to each node in the DAX cluster. If this
        parameter is not specified, DAX assigns the default VPC security group to each node.
aws-java-sdk-dax/src/main/java/com/amazonaws/services/dax/model/UpdateClusterRequest.java