Enum Error 

pub enum Error {
    Syntax(SparqlSyntaxError),
    Parse(RdfParseError),
    Backend(String),
    Unsupported(String),
    Collision(String),
    Corrupted(String),
    Evaluation(QueryEvaluationError),
    Io(Error),
    Other(String),
}

Errors raised by oxilite.

Variants

Syntax(SparqlSyntaxError)

The SPARQL query or update could not be parsed.

Parse(RdfParseError)

An RDF document could not be parsed.

Backend(String)

The SQL backend failed.

Unsupported(String)

The operation needs something the compiler or backend cannot do.

Collision(String)

Two different terms hashed to the same id.

Corrupted(String)

The database content is not what oxilite expects.

Evaluation(QueryEvaluationError)

Evaluation by the fallback evaluator failed.

Io(Error)

I/O error while reading or writing RDF.

Other(String)

Other errors.

Implementations

impl Error

pub fn backend(e: impl Display) -> Self

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

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

pub fn is_unsupported(&self) -> bool

Is this error a request for the fallback evaluator?

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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 Error

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<QueryEvaluationError> for Error

fn from(source: QueryEvaluationError) -> Self

Converts to this type from the input type.

impl From<RdfParseError> for Error

fn from(source: RdfParseError) -> Self

Converts to this type from the input type.

impl From<SparqlSyntaxError> for Error

fn from(source: SparqlSyntaxError) -> Self

Converts to this type from the input type.