Enum GraphError 

pub enum GraphError {
    EntityNotFound(EntityId),
    EdgeNotFound(EdgeId),
    InvalidEntityReference(EntityId),
    EntityAlreadyExists(EntityId),
    EdgeAlreadyExists(EdgeId),
    Encoding(String),
    Storage(StorageError),
    Internal(String),
    InvalidWeight {
        edge_id: EdgeId,
        message: String,
    },
    DataCorruption(String),
    GraphTooLarge {
        node_count: usize,
        limit: usize,
    },
}

Errors that can occur in graph storage operations.

Variants

EntityNotFound(EntityId)

An entity (node) was not found.

EdgeNotFound(EdgeId)

An edge was not found.

InvalidEntityReference(EntityId)

Referenced entity does not exist when creating an edge.

EntityAlreadyExists(EntityId)

An entity with the given ID already exists.

EdgeAlreadyExists(EdgeId)

An edge with the given ID already exists.

Encoding(String)

An encoding or decoding error occurred.

Storage(StorageError)

A storage backend error occurred.

Internal(String)

An internal error occurred.

InvalidWeight

An invalid edge weight was encountered.

Fields

edge_id: EdgeId

The edge with the invalid weight.

message: String

Description of the weight issue.

DataCorruption(String)

Data corruption detected in storage.

GraphTooLarge

Graph is too large for the requested operation.

Fields

node_count: usize

The number of nodes in the graph.

limit: usize

The configured limit.

Trait Implementations

impl Debug for GraphError

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

Formats the value using the given formatter.

impl Display for GraphError

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

Formats the value using the given formatter.

impl Error for GraphError

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<CoreError> for GraphError

fn from(err: CoreError) -> Self

Converts to this type from the input type.

impl From<StorageError> for GraphError

fn from(source: StorageError) -> Self

Converts to this type from the input type.