@Config("resource-groups.config-db-url")
    public DbResourceGroupConfig setConfigDbUrl(String configUrl)
    {
        this.configUrl = configUrl;
        return this;
    }
@Test
    public void testExplicitPropertyMappings()
    {
        Map<String, String> properties = new ImmutableMap.Builder<String, String>()
                .put("resource-groups.config-db-url", "jdbc:mysql//localhost:3306/config?user=presto_admin")
                .build();
        DbResourceGroupConfig expected = new DbResourceGroupConfig()
                .setConfigDbUrl("jdbc:mysql//localhost:3306/config?user=presto_admin");

        assertFullMapping(properties, expected);
    }