Struct SelectQuery

pub struct SelectQuery {
    pub prefixes: Vec<Prefix>,
    pub select: Vec<SelectItem>,
    pub where: WhereClause,
    pub limit: Option<u32>,
}

SelectQuery

Represents a SELECT query over the triple store, allowing to select variables to return and to filter the results.

Fields

prefixes: Vec<Prefix>

The prefixes used in the query.

select: Vec<SelectItem>

The items to select. Note: the number of items to select cannot exceed the maximum query variable count defined in the store limitations.

where: WhereClause

The WHERE clause. If None, there is no WHERE clause, i.e. all triples are returned without filtering.

limit: Option<u32>

The maximum number of results to return. If None, there is no limit. Note: the value of the limit cannot exceed the maximum query limit defined in the store limitations.

Trait Implementations

impl Clone for SelectQuery

fn clone(&self) -> SelectQuery

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SelectQuery

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for SelectQuery

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl JsonSchema for SelectQuery

fn schema_name() -> String

The name of the generated JSON Schema.

fn schema_id() -> Cow<'static, str>

Returns a string that uniquely identifies the schema produced by this type.

fn json_schema(generator: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

fn is_referenceable() -> bool

Whether JSON Schemas generated for this type should be re-used where possible using the $ref keyword.

impl PartialEq for SelectQuery

fn eq(&self, other: &SelectQuery) -> 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 SelectQuery

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for SelectQuery