Enum Query 

pub enum Query {
    Select {
        dataset: Option<QueryDataset>,
        pattern: GraphPattern,
        base_iri: Option<String>,
    },
    Construct {
        template: Vec<TriplePattern>,
        dataset: Option<QueryDataset>,
        pattern: GraphPattern,
        base_iri: Option<String>,
    },
    Describe {
        dataset: Option<QueryDataset>,
        pattern: GraphPattern,
        base_iri: Option<String>,
    },
    Ask {
        dataset: Option<QueryDataset>,
        pattern: GraphPattern,
        base_iri: Option<String>,
    },
}

A parsed SPARQL query.

Variants

Select

SELECT.

Fields

dataset: Option<QueryDataset>

The query dataset specification.

pattern: GraphPattern

The query selection graph pattern.

base_iri: Option<String>

The query base IRI.

Construct

CONSTRUCT.

Fields

template: Vec<TriplePattern>

The query construction template.

dataset: Option<QueryDataset>

The query dataset specification.

pattern: GraphPattern

The query selection graph pattern.

base_iri: Option<String>

The query base IRI.

Describe

DESCRIBE.

Fields

dataset: Option<QueryDataset>

The query dataset specification.

pattern: GraphPattern

The query selection graph pattern.

base_iri: Option<String>

The query base IRI.

Ask

ASK.

Fields

dataset: Option<QueryDataset>

The query dataset specification.

pattern: GraphPattern

The query selection graph pattern.

base_iri: Option<String>

The query base IRI.

Implementations

impl Query

pub fn select(pattern: GraphPattern) -> Self

Creates a new SELECT query

pub fn construct(template: Vec<TriplePattern>, pattern: GraphPattern) -> Self

Creates a new CONSTRUCT query

pub fn ask(pattern: GraphPattern) -> Self

Creates a new ASK query

pub fn describe(pattern: GraphPattern) -> Self

Creates a new DESCRIBE query

pub fn dataset(&self) -> Option<&QueryDataset>

Returns the dataset specification for this query

pub fn dataset_mut(&mut self) -> Option<&mut QueryDataset>

Returns a mutable reference to the dataset specification for this query

pub fn base_iri(&self) -> Option<&str>

Returns the base IRI for this query

pub fn pattern(&self) -> &GraphPattern

Returns the graph pattern for this query

pub fn with_base_iri(self, base_iri: impl Into<String>) -> Self

Sets the base IRI for this query

pub fn with_dataset(self, dataset: QueryDataset) -> Self

Sets the dataset for this query

pub fn to_sse(&self) -> String

Formats using the SPARQL S-Expression syntax

pub fn fmt_sse(&self, f: &mut impl Write) -> Result

Formats using the SPARQL S-Expression syntax

Trait Implementations

impl Clone for Query

fn clone(&self) -> Query

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Query

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Query

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Query

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

Formats the value using the given formatter.

impl Hash for Query

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Query

fn eq(&self, other: &Query) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Query

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for Query

impl StructuralPartialEq for Query