...
	public List findByNamedParam(String queryString, String paramName, Object value)
			throws DataAccessException {
		return findByNamedParam(queryString, new String[] {paramName}, new Object[] {value});
	}

	public List findByNamedParam(final String queryString, final String[] paramNames, final Object[] values)
			throws DataAccessException {
		if (paramNames.length != values.length) {
			throw new IllegalArgumentException("Length of paramNames array must match length of values array");
		}
		return (List) execute(new HibernateCallback() {
			public Object doInHibernate(Session session) throws HibernateException {
				Query queryObject = session.createQuery(queryString);
				prepareQuery(queryObject);
				if (values != null) {
					for (int i = 0; i < values.length; i++) {
						applyNamedParameterToQuery(queryObject, paramNames[i], values[i]);
					}
				}
				return queryObject.list();
			}
		}, true);
	}

...