Enum Error 

pub enum Error {
    Io(Error),
    InvalidMagic,
    ChecksumMismatch,
    VersionMismatch,
    NotFound,
    AlreadyExists,
    InvalidArgument(String),
    Corruption(String),
    OutOfMemory,
    Unimplemented,
    DecryptionFailed,
    WriterBusy,
    EncryptionAuthFailed,
    WriteWriteConflict {
        node_id: u64,
    },
    NodeHasEdges {
        node_id: u64,
    },
    QueryTimeout,
    ReadOnly,
}

All errors that SparrowDB can return.

Variants

Io(Error)

InvalidMagic

ChecksumMismatch

VersionMismatch

NotFound

AlreadyExists

InvalidArgument(String)

Corruption(String)

OutOfMemory

Unimplemented

DecryptionFailed

AEAD authentication tag verification failed — wrong key or corrupted ciphertext.

WriterBusy

A write transaction is already active; only one writer is allowed at a time.

EncryptionAuthFailed

AEAD authentication tag rejected on page/WAL decrypt — signals that the database was opened with the wrong encryption key (distinct from a generic checksum error so callers can present a clear “wrong key” message).

WriteWriteConflict

Two concurrent write transactions both modified the same node.

The transaction that committed second is aborted to maintain consistency.

Fields

node_id: u64

NodeHasEdges

The node has attached edges and cannot be deleted without removing them first.

Fields

node_id: u64

QueryTimeout

The per-query deadline was exceeded before the query could complete.

Returned by [GraphDb::execute_with_timeout] when the supplied std::time::Duration expires during scan or traversal.

ReadOnly

A mutation or DDL statement was submitted to a read-only transaction.

[ReadTx::query] only accepts read-only Cypher (MATCH … RETURN). Use [GraphDb::execute] for CREATE, MERGE, MATCH … SET, MATCH … DELETE, CHECKPOINT, and OPTIMIZE.

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, f: &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(e: Error) -> Self

Converts to this type from the input type.