Do not translate exceptions that are not understand by this translator: + * corresponding exception from Spring's generic + * {@link org.springframework.dao.DataAccessException} hierarchy, if possible. + *
Do not translate exceptions that are not understood by this translator: * for example, if coming from another persistence framework, or resulting - * from user code and unrelated to persistence. + * from user code or otherwise unrelated to persistence. *
Of particular importance is the correct translation to * DataIntegrityViolationException, for example on constraint violation. * Implementations may use Spring JDBC's sophisticated exception translation * to provide further information in the event of SQLException as a root cause. - * @param ex a RuntimeException thrown + * @param ex a RuntimeException to translate * @return the corresponding DataAccessException (or {@code null} if the * exception could not be translated, as in this case it may result from - * user code rather than an actual persistence problem) + * user code rather than from an actual persistence problem) * @see org.springframework.dao.DataIntegrityViolationException * @see org.springframework.jdbc.support.SQLExceptionTranslator */