Enum Error

pub enum Error {
    DatabaseNotOpen,
    DatabaseOpen,
    InvalidDatabase(bool),
    InvalidMapping,
    VersionMismatch,
    ChecksumMismatch,
    FileSizeTooSmall(u64),
    Timeout,
    FreePagesNotLoaded,
    BucketNotFound,
    BucketExists,
    BucketNameRequired,
    KeyRequired,
    KeyTooLarge,
    ValueTooLarge,
    IncompatibleValue,
    MMapTooSmall(u64),
    MMapTooLarge,
    TrySolo,
    BatchDisabled,
    IO(Error),
    Other(Error),
}

Bolt database errors

Variants

DatabaseNotOpen

DatabaseNotOpen is returned when a DB instance is accessed before it is opened or after it is closed.

DatabaseOpen

DatabaseOpen is returned when opening a database that is already open.

InvalidDatabase(bool)

InvalidDatabase is returned when both meta pages on a database are invalid. This typically occurs when a file is not a bolt database.

InvalidMapping

InvalidMapping is returned when the database file fails to get mapped.

VersionMismatch

ErrVersionMismatch is returned when the data file was created with a different version of Bolt.

ChecksumMismatch

Checksum is returned when either meta page checksum does not match.

FileSizeTooSmall(u64)

File size is below the minimum size a Bolt database could be

Timeout

Timeout is returned when a database cannot obtain an exclusive lock on the data file after the timeout passed to Open().

FreePagesNotLoaded

FreePagesNotLoaded is returned when a readonly transaction without preloading the free pages is trying to access the free pages.

BucketNotFound

BucketNotFound is returned when trying to access a bucket that has not been created yet.

BucketExists

BucketExists is returned when creating a bucket that already exists.

BucketNameRequired

BucketNameRequired is returned when creating a bucket with a blank name.

KeyRequired

KeyRequired is returned when inserting a zero-length key.

KeyTooLarge

KeyTooLarge is returned when inserting a key that is larger than MaxKeySize.

ValueTooLarge

ValueTooLarge is returned when inserting a value that is larger than MaxValueSize.

IncompatibleValue

IncompatibleValue is returned when trying to create or delete a bucket on an existing non-bucket key or when trying to create or delete a non-bucket key on an existing bucket key.

MMapTooSmall(u64)

File size is below the minimum size a Bolt database could be

MMapTooLarge

File size is larger than the maximum size a Bolt database could be

TrySolo

Batch call failed. Try again without batch

BatchDisabled

Batch is disabled

IO(Error)

Chained errors from other sources

Other(Error)

User defined error

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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

Returns the lower-level source of this error, if any.

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

fn provide<'a>(&'a self, request: &mut Request<'a>)

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

Provides type-based access to context intended for error reports.

impl From<Error> for Error

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<Error> for Error

fn from(source: Error) -> Self

Converts to this type from the input type.

impl PartialEq for Error

fn eq(&self, other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for Error