Enum UniError 

#[non_exhaustive]
pub enum UniError {
    NotFound {
        path: PathBuf,
    },
    Schema {
        message: String,
    },
    Parse {
        message: String,
        position: Option<usize>,
        line: Option<usize>,
        column: Option<usize>,
        context: Option<String>,
    },
    Query {
        message: String,
        query: Option<String>,
    },
    Transaction {
        message: String,
    },
    TransactionConflict {
        message: String,
    },
    TransactionAlreadyCompleted,
    ReadOnly {
        operation: String,
    },
    LabelNotFound {
        label: String,
    },
    EdgeTypeNotFound {
        edge_type: String,
    },
    PropertyNotFound {
        property: String,
        entity_type: String,
        label: String,
    },
    IndexNotFound {
        index: String,
    },
    SnapshotNotFound {
        snapshot_id: String,
    },
    MemoryLimitExceeded {
        limit_bytes: usize,
    },
    DatabaseLocked,
    Timeout {
        timeout_ms: u64,
    },
    Type {
        expected: String,
        actual: String,
    },
    Constraint {
        message: String,
    },
    Storage {
        message: String,
        source: Option<Box<dyn Error + Send + Sync>>,
    },
    Io(Error),
    Internal(Error),
    InvalidIdentifier {
        name: String,
        reason: String,
    },
    LabelAlreadyExists {
        label: String,
    },
    EdgeTypeAlreadyExists {
        edge_type: String,
    },
    PermissionDenied {
        action: String,
    },
    InvalidArgument {
        arg: String,
        message: String,
    },
    WriteContextAlreadyActive {
        session_id: String,
        hint: &'static str,
    },
    CommitTimeout {
        tx_id: String,
        hint: &'static str,
    },
    TransactionExpired {
        tx_id: String,
        hint: &'static str,
    },
    Cancelled,
    StaleDerivedFacts {
        version_gap: u64,
    },
    RuleConflict {
        rule_name: String,
    },
    HookRejected {
        message: String,
    },
}

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

NotFound

Fields

path: PathBuf

Schema

Fields

message: String

Parse

Fields

message: String

position: Option<usize>

line: Option<usize>

column: Option<usize>

context: Option<String>

Query

Fields

message: String

query: Option<String>

Transaction

Fields

message: String

TransactionConflict

Fields

message: String

TransactionAlreadyCompleted

ReadOnly

Operation not supported on read-only database

Fields

operation: String

LabelNotFound

Label not found in schema

Fields

label: String

EdgeTypeNotFound

Edge type not found in schema

Fields

edge_type: String

PropertyNotFound

Property not found on node/edge

Fields

property: String

entity_type: String

label: String

IndexNotFound

Index not found

Fields

index: String

SnapshotNotFound

Snapshot not found

Fields

snapshot_id: String

MemoryLimitExceeded

Query memory limit exceeded

Fields

limit_bytes: usize

DatabaseLocked

Timeout

Fields

timeout_ms: u64

Type

Fields

expected: String

actual: String

Constraint

Fields

message: String

Storage

Fields

message: String

source: Option<Box<dyn Error + Send + Sync>>

Io(Error)

Internal(Error)

InvalidIdentifier

Fields

name: String

reason: String

LabelAlreadyExists

Fields

label: String

EdgeTypeAlreadyExists

Fields

edge_type: String

PermissionDenied

Fields

action: String

InvalidArgument

Fields

arg: String

message: String

WriteContextAlreadyActive

Write context (transaction, bulk writer, or appender) is already active on session.

Fields

session_id: String

hint: &'static str

CommitTimeout

Transaction commit timed out waiting for the global writer lock.

Fields

tx_id: String

hint: &'static str

TransactionExpired

Transaction exceeded its deadline.

Fields

tx_id: String

hint: &'static str

Cancelled

Operation was cancelled via a cancellation token.

StaleDerivedFacts

Derived facts are stale relative to the current database version.

Fields

version_gap: u64

RuleConflict

A Locy rule conflict was detected during transaction commit rule promotion.

Fields

rule_name: String

HookRejected

A session hook rejected the operation.

Fields

message: String

Trait Implementations

impl Debug for UniError

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

Formats the value using the given formatter.

impl Display for UniError

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

Formats the value using the given formatter.

impl Error for UniError

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 UniError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<Error> for UniError

fn from(source: Error) -> Self

Converts to this type from the input type.