String sql = "SELECT * FROM " +quoteTable("tax_class")+ " WHERE tax_class_id = ?";
TaxClass taxClass = getJdbcOperations().queryForObject(sql,
new Object[]{taxClassId}, new TaxClassRowMapper());
sql = "SELECT * FROM "+quoteTable("tax_rule")+ " WHERE tax_class_id =?";
List<TaxRule> taxRules = getJdbcOperations()
.query(sql, new Object[]{taxClassId}, new TaxRuleRowMapper());
taxClass.setTaxRules(taxRules);
return taxClass;
}