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QueryEvaluationError

flams_math_archives::triple_store::sparql::spargebra

Enum QueryEvaluationError 

#[non_exhaustive]
pub enum QueryEvaluationError {
    Dataset(Box<dyn Error + Send + Sync>),
    Service(Box<dyn Error + Send + Sync>),
    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)§

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 + Send + Sync>)

Error from the underlying RDF dataset

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

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

Fields

§name: NamedNode
§expected: RangeInclusive<usize>
§actual: usize
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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 Implementations§

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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 · Source§

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

Read more
1.0.0 · Source§

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<!> for QueryEvaluationError

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fn from(error: !) -> QueryEvaluationError

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

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fn from(error: QueryEvaluationError) -> UpdateEvaluationError

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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