presto-resource-group-managers/src/main/java/io/prestosql/plugin/resourcegroups/db/PrefixObjectNameGeneratorModule.java/PrefixObjectNameGeneratorModule/createPrefixObjectNameGenerator
class PrefixObjectNameGeneratorModule:    @Provides
    ObjectNameGenerator createPrefixObjectNameGenerator(PrefixObjectNameGeneratorConfig config)
    {
        String domainBase = DEFAULT_DOMAIN_BASE;
        if (config.getDomainBase() != null) {
            domainBase = config.getDomainBase();
        }
        return new PrefixObjectNameGenerator(domainBase);
    }