Struct PortError 

pub struct PortError { /* private fields */ }

An error from a port implementation (repository, event dispatcher, etc.), tagged with a PortErrorKind and wrapping the underlying cause.

Examples

use ddd_toolkit_core::port::{PortError, PortErrorKind};

let error = PortError::unavailable("connection refused");

// the kind lets a caller decide how to react, e.g. retry on `Unavailable`...
match error.kind() {
    PortErrorKind::Unavailable => { /* retry later */ }
    PortErrorKind::Conflict => { /* reload and retry */ }
    _ => { /* give up */ }
}

// ...while std::error::Error::source() still exposes the underlying cause.
assert_eq!(error.to_string(), "Unavailable: connection refused");

Implementations

impl PortError

pub fn new( kind: PortErrorKind, source: impl Into<Box<dyn Error + Sync + Send>>, ) -> PortError

Creates a new PortError of the given kind, wrapping source.

pub fn conflict(source: impl Into<Box<dyn Error + Sync + Send>>) -> PortError

Creates a PortErrorKind::Conflict error.

pub fn unavailable(source: impl Into<Box<dyn Error + Sync + Send>>) -> PortError

Creates a PortErrorKind::Unavailable error.

pub fn other(source: impl Into<Box<dyn Error + Sync + Send>>) -> PortError

Creates a PortErrorKind::Other error.

pub fn kind(&self) -> PortErrorKind

This error’s kind.

Trait Implementations

impl Debug for PortError

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

Formats the value using the given formatter.

impl Display for PortError

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

Formats the value using the given formatter.

impl Error for PortError

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.