oxigraph::sparql

Enum EvaluationError

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#[non_exhaustive]
pub enum EvaluationError {
Show 13 variants Parsing(SparqlSyntaxError), Storage(StorageError), GraphParsing(RdfParseError), ResultsParsing(QueryResultsParseError), ResultsSerialization(Error), Service(Box<dyn Error + Send + Sync + 'static>), GraphAlreadyExists(NamedNode), GraphDoesNotExist(NamedNode), UnboundService, UnsupportedService(NamedNode), UnsupportedContentType(String), ServiceDoesNotReturnSolutions, NotAGraph,
}
Expand description

A SPARQL evaluation error.

Variants (Non-exhaustive)§

This enum is marked as non-exhaustive
Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.
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Parsing(SparqlSyntaxError)

An error in SPARQL parsing.

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Storage(StorageError)

An error from the storage.

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GraphParsing(RdfParseError)

An error while parsing an external RDF file.

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ResultsParsing(QueryResultsParseError)

An error while parsing an external result file (likely from a federated query).

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ResultsSerialization(Error)

An error returned during results serialization.

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Service(Box<dyn Error + Send + Sync + 'static>)

Error during SERVICE evaluation

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GraphAlreadyExists(NamedNode)

Error when CREATE tries to create an already existing graph

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GraphDoesNotExist(NamedNode)

Error when DROP or CLEAR tries to remove a not existing graph

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UnboundService

The variable storing the SERVICE name is unbound

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UnsupportedService(NamedNode)

The given SERVICE is not supported

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UnsupportedContentType(String)

The given content media type returned from an HTTP response is not supported (SERVICE and LOAD)

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ServiceDoesNotReturnSolutions

The SERVICE call has not returns solutions

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NotAGraph

The results are not a RDF graph

Trait Implementations§

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impl Debug for EvaluationError

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

Formats the value using the given formatter. Read more
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impl Display for EvaluationError

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

Formats the value using the given formatter. Read more
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impl Error for EvaluationError

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fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any. Read more
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fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()
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fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting
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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. Read more
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impl From<Error> for EvaluationError

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fn from(source: Error) -> Self

Converts to this type from the input type.
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impl From<EvaluationError> for Error

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fn from(error: EvaluationError) -> Self

Converts to this type from the input type.
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impl From<Infallible> for EvaluationError

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fn from(error: Infallible) -> Self

Converts to this type from the input type.
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impl From<QueryResultsParseError> for EvaluationError

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fn from(source: ResultsParseError) -> Self

Converts to this type from the input type.
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impl From<RdfParseError> for EvaluationError

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fn from(source: RdfParseError) -> Self

Converts to this type from the input type.
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impl From<SparqlSyntaxError> for EvaluationError

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fn from(source: SparqlSyntaxError) -> Self

Converts to this type from the input type.
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impl From<StorageError> for EvaluationError

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fn from(source: StorageError) -> Self

Converts to this type from the input type.

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Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> ToString for T
where T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V