Enum KgError 

pub enum KgError {
    NodeNotFound(String),
    DuplicateNode(String),
    EdgeEndpointMissing {
        from: String,
        to: String,
    },
}

Error types for knowledge graph operations.

Variants

NodeNotFound(String)

A node with the given ID was not found.

DuplicateNode(String)

A node with the given ID already exists.

EdgeEndpointMissing

An edge references a node that does not exist.

Fields

from: String

to: String

Trait Implementations

impl Debug for KgError

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

Formats the value using the given formatter.

impl Display for KgError

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

Formats the value using the given formatter.

impl Error for KgError

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.