Enum hdbconnect::HdbError

pub enum HdbError {
    Conversion(ConversionError),
    Deserialization(DeserializationError),
    DbError(ServerError),
    DbIssue(String),
    MixedResults(Vec<ExecutionResult>),
    Cesu8(Cesu8DecodingError),
    Evaluation(String),
    Impl(String),
    Io(Error),
    Poison(String),
    Serialization(SerializationError),
    Usage(String),
}

Represents all possible errors that can occur in hdbconnect.

Variants

Conversion(ConversionError)

Conversion of single db value to rust type failed.

Deserialization(DeserializationError)

Error occured in deserialization of data structures into an application-defined structure.

DbError(ServerError)

Database server responded with an error.

DbIssue(String)

Database server has a severe issue.

MixedResults(Vec<ExecutionResult>)

Database server responded with at least one error.

Cesu8(Cesu8DecodingError)

Some error occured while reading CESU-8.

Evaluation(String)

Error occured while evaluating a HdbResponse object.

Impl(String)

Missing or wrong implementation of HANA's wire protocol.

Io(Error)

IO error occured in communication with the database.

Poison(String)

Error occured in thread synchronization.

Serialization(SerializationError)

Error occured in serialization of rust data into values for the database.

Usage(String)

Error due to wrong usage of API.

Methods

impl HdbError

pub fn server_error(&self) -> Option<&ServerError>

Return the contained server_error, if any.

This method helps in case you need programmatic access to e.g. the error code.

Example:

    if let Err(hdberror) = hdb_result {
        if let Some(server_error) = hdberror.server_error() {
            let sys_m_error_code: (i32, String, String) = connection
                .query(&format!(
                    "select * from SYS.M_ERROR_CODES where code = {}",
                    server_error.code()
                ))?.try_into()?;
            println!("sys_m_error_code: {:?}", sys_m_error_code);
        }
    }

Trait Implementations

impl From<ConversionError> for HdbError

fn from(error: ConversionError) -> HdbError

Performs the conversion.

impl From<DeserializationError> for HdbError

fn from(error: DeserializationError) -> HdbError

Performs the conversion.

impl From<SerializationError> for HdbError

fn from(error: SerializationError) -> HdbError

Performs the conversion.

impl From<String> for HdbError

fn from(s: String) -> HdbError

Performs the conversion.

impl From<Error> for HdbError

fn from(error: Error) -> HdbError

Performs the conversion.

impl From<Error> for HdbError

fn from(error: Error) -> HdbError

Performs the conversion.

impl From<Cesu8DecodingError> for HdbError

fn from(error: Cesu8DecodingError) -> HdbError

Performs the conversion.

impl<'a, T> From<PoisonError<MutexGuard<'a, T>>> for HdbError

fn from(error: PoisonError<MutexGuard<'a, T>>) -> HdbError

Performs the conversion.

impl From<HdbError> for DeserializationError

fn from(e: HdbError) -> DeserializationError

Performs the conversion.

impl From<HdbError> for RmError

fn from(error: HdbError) -> RmError

Performs the conversion.

impl Display for HdbError

fn fmt(&self, fmt: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Debug for HdbError

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Error for HdbError

fn description(&self) -> &str

This method is soft-deprecated.

fn cause(&self) -> Option<&dyn Error>

Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

The lower-level cause of this error, if any.

fn source(&self) -> Option<&(dyn Error + 'static)>

The lower-level source of this error, if any.