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QueryEvaluationError

Enum QueryEvaluationError 

#[non_exhaustive]
pub enum QueryEvaluationError { Dataset(Box<dyn Error + Sync + Send>), Service(Box<dyn Error + Sync + Send>), NotExistingSubstitutedVariable(Variable), UnexpectedDefaultGraph, UnsupportedCustomFunction(NamedNode), UnsupportedCustomFunctionArity { name: NamedNode, expected: RangeInclusive<usize>, actual: usize, }, UnboundService, InvalidServiceName(Term), UnsupportedService(NamedNode), InvalidStorageTripleTerm, Cancelled, }
Available on crate feature rdf only.
Expand description

A SPARQL evaluation error

Variants (Non-exhaustive)ยง

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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Dataset(Box<dyn Error + Sync + Send>)

Error from the underlying RDF dataset

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

Error during SERVICE evaluation

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NotExistingSubstitutedVariable(Variable)

If a variable present in the given initial substitution is not present in the SELECT part of the query

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UnexpectedDefaultGraph

Error if the dataset returns the default graph even if a named graph is expected

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UnsupportedCustomFunction(NamedNode)

The given custom function is not supported

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UnsupportedCustomFunctionArity

The given custom function arity is not supported

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UnboundService

The variable storing the SERVICE name is unbound

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InvalidServiceName(Term)

Invalid service name

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UnsupportedService(NamedNode)

The given SERVICE is not supported

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InvalidStorageTripleTerm

Available on crate feature sparql-12 only.
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Cancelled

Trait Implementationsยง

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impl Debug for QueryEvaluationError

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

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

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

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

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

Returns the lower-level source of this error, if any. Read more
1.0.0 ยท Sourceยง

fn description(&self) -> &str

๐Ÿ‘ŽDeprecated since 1.42.0:

use the Display impl or to_string()

1.0.0 ยท Sourceยง

fn cause(&self) -> Option<&dyn Error>

๐Ÿ‘ŽDeprecated 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>)

๐Ÿ”ฌThis 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<ExpressionEvaluationError<QueryEvaluationError>> for QueryEvaluationError

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fn from( error: ExpressionEvaluationError<QueryEvaluationError>, ) -> QueryEvaluationError

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

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fn from(error: Infallible) -> QueryEvaluationError

Converts to this type from the input type.
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impl From<QueryEvaluationError> for QueryError

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fn from(source: QueryEvaluationError) -> Self

Converts to this type from the input type.
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impl From<QueryEvaluationError> for UpdateEvaluationError

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fn from(error: QueryEvaluationError) -> UpdateEvaluationError

Converts to this type from the input type.

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