Enum mlmd::errors::InitError

pub enum InitError {
    Db(Error),
    UnsupportedDatabase,
    UnsupportedSchemaVersion {
        actual: i32,
        expected: i32,
    },
}

Possible errors during database initialization.

Variants

Db(Error)

Database error.

UnsupportedDatabase

Unsupported database is specified.

ml-metadata only supports SQLite or MySQL.

UnsupportedSchemaVersion

Fields

actual: i32

The schema version of the database.

expected: i32

The schema version supported by this crate.

Incompatible database schema is used in the ml-metadata database.

Please upgrade or downgrade the database by following the official doc.

Trait Implementations

impl Debug for InitError

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

Formats the value using the given formatter.

impl Display for InitError

fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for InitError

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

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

fn backtrace(&self) -> Option<&Backtrace>

🔬 This is a nightly-only experimental API. (backtrace)

Returns a stack backtrace, if available, of where this error occurred.

fn description(&self) -> &str

👎 Deprecated since 1.42.0:

use the Display impl or to_string()

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

👎 Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

impl From<Error> for InitError

fn from(source: Error) -> Self

Converts to this type from the input type.