Enum LoraErrorCode 

pub enum LoraErrorCode {
    Parse,
    Semantic,
    InvalidParams,
    ReadOnlyViolation,
    NotFound,
    ConstraintViolation,
    InvalidVector,
    Timeout,
    DatabaseName,
    Config,
    Validation,
    UniqueConstraint,
    NotNullConstraint,
    ForeignKeyViolation,
    TransactionFailure,
    Locked,
    ChangesTruncated,
    ChangesLagged,
    Io,
    Connection,
    WalCorruption,
    WalPoisoned,
    SnapshotCodec,
    SnapshotCrypto,
    Internal,
}

Stable error-code catalog. The wire string returned by Self::as_str is part of LoraDB’s public API. Consumers — bindings, the HTTP layer, integration tests — should match on this rather than on the message text, which is allowed to change between releases.

Variants

Parse

Cypher syntax could not be parsed.

Semantic

Cypher analysis (unknown variable, label, function, type mismatch, …).

InvalidParams

A parameter value passed by the caller could not be coerced.

ReadOnlyViolation

A mutating statement was issued in a read-only context.

NotFound

A named entity (database, label, key) does not exist.

ConstraintViolation

A precondition (e.g. delete-with-relationships) is not satisfied.

InvalidVector

A vector value failed dimension / coordinate-type validation.

Timeout

A query exceeded its cooperative deadline.

DatabaseName

A logical database name violates the portable-path rules.

Config

Required parameters are missing or malformed (CLI / config flags).

Validation

A well-formed request failed database-layer validation.

UniqueConstraint

A uniqueness constraint rejected a duplicate value.

NotNullConstraint

A property-existence / NOT NULL constraint rejected missing data.

ForeignKeyViolation

A relationship or dependent record references a missing entity.

TransactionFailure

A transaction lifecycle rule was violated.

Locked

The database directory is held by another process or live handle.

ChangesTruncated

A change feed was asked to resume from an LSN the database no longer retains (or never produced).

ChangesLagged

A change feed subscriber fell further behind than its buffer allows; resume from the last LSN it processed.

Io

I/O failure outside the WAL / snapshot boundaries.

Connection

The database could not open or use its backing connection/handle.

WalCorruption

WAL record was truncated, mis-CRC’d, or otherwise unreadable.

WalPoisoned

The WAL is poisoned and no longer accepts durable writes.

SnapshotCodec

Snapshot codec failure (bad magic, version, checksum, …).

SnapshotCrypto

Snapshot encryption / decryption / KDF failure.

Internal

Last-resort fallback when the engine cannot classify the failure.

Implementations

impl LoraErrorCode

pub fn as_str(self) -> &'static str

Stable wire string. Part of the public API — never changes.

pub fn category(self) -> LoraErrorCategory

Whether this code is the caller’s fault or the engine’s.

Trait Implementations

impl Clone for LoraErrorCode

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for LoraErrorCode

impl Debug for LoraErrorCode

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

Formats the value using the given formatter.

impl Display for LoraErrorCode

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

Formats the value using the given formatter.

impl Eq for LoraErrorCode

impl PartialEq for LoraErrorCode

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for LoraErrorCode