Enum BackendError

pub enum BackendError {
    NotInitialized,
    Configuration(String),
    Connection(String),
    NotSupported(String),
    Internal(String),
    Custom(Box<dyn StdError + Send + Sync>),
}

Error type for backend operations

Variants

NotInitialized

Configuration(String)

Connection(String)

NotSupported(String)

Internal(String)

Custom(Box<dyn StdError + Send + Sync>)

Implementations

impl BackendError

pub fn configuration(msg: impl Into<String>) -> Self

pub fn connection(msg: impl Into<String>) -> Self

pub fn not_supported(msg: impl Into<String>) -> Self

pub fn internal(msg: impl Into<String>) -> Self

pub fn custom(error: impl StdError + Send + Sync + 'static) -> Self

Trait Implementations

impl Debug for BackendError

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

Formats the value using the given formatter.

impl Display for BackendError

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

Formats the value using the given formatter.

impl Error for BackendError

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<BackendError> for Error

Convert BackendError to MCP protocol Error

fn from(err: BackendError) -> Self

Converts to this type from the input type.