Enum GraphPattern 

pub enum GraphPattern {
    Bgp(Vec<AlgebraTriplePattern>),
    Path {
        subject: TermPattern,
        path: PropertyPath,
        object: TermPattern,
    },
    Join(Box<GraphPattern>, Box<GraphPattern>),
    LeftJoin {
        left: Box<GraphPattern>,
        right: Box<GraphPattern>,
        condition: Option<Expression>,
    },
    Filter {
        expr: Expression,
        inner: Box<GraphPattern>,
    },
    Union(Box<GraphPattern>, Box<GraphPattern>),
    Graph {
        graph_name: TermPattern,
        inner: Box<GraphPattern>,
    },
    Service {
        service: TermPattern,
        inner: Box<GraphPattern>,
        silent: bool,
    },
    Group {
        inner: Box<GraphPattern>,
        variables: Vec<Variable>,
        aggregates: Vec<(Variable, AggregateExpression)>,
    },
    Extend {
        inner: Box<GraphPattern>,
        variable: Variable,
        expression: Expression,
    },
    Minus(Box<GraphPattern>, Box<GraphPattern>),
    Values {
        variables: Vec<Variable>,
        bindings: Vec<Vec<Option<Term>>>,
    },
    OrderBy {
        inner: Box<GraphPattern>,
        order_by: Vec<OrderExpression>,
    },
    Project {
        inner: Box<GraphPattern>,
        variables: Vec<Variable>,
    },
    Distinct(Box<GraphPattern>),
    Reduced(Box<GraphPattern>),
    Slice {
        inner: Box<GraphPattern>,
        offset: usize,
        limit: Option<usize>,
    },
}

A graph pattern

Variants

Bgp(Vec<AlgebraTriplePattern>)

Basic graph pattern (set of triple patterns)

Path

Path pattern

Fields

subject: TermPattern

path: PropertyPath

object: TermPattern

Join(Box<GraphPattern>, Box<GraphPattern>)

Join of two patterns

LeftJoin

Left join (OPTIONAL)

Fields

left: Box<GraphPattern>

right: Box<GraphPattern>

condition: Option<Expression>

Filter

Filter pattern

Fields

expr: Expression

inner: Box<GraphPattern>

Union(Box<GraphPattern>, Box<GraphPattern>)

Union of patterns

Graph

Graph pattern (GRAPH)

Fields

graph_name: TermPattern

inner: Box<GraphPattern>

Service

Service pattern (federated query)

Fields

service: TermPattern

inner: Box<GraphPattern>

silent: bool

Group

Group pattern

Fields

inner: Box<GraphPattern>

variables: Vec<Variable>

aggregates: Vec<(Variable, AggregateExpression)>

Extend

Extend pattern (BIND)

Fields

inner: Box<GraphPattern>

variable: Variable

expression: Expression

Minus(Box<GraphPattern>, Box<GraphPattern>)

Minus pattern

Values

Values pattern

Fields

variables: Vec<Variable>

bindings: Vec<Vec<Option<Term>>>

OrderBy

Order by pattern

Fields

inner: Box<GraphPattern>

order_by: Vec<OrderExpression>

Project

Project pattern

Fields

inner: Box<GraphPattern>

variables: Vec<Variable>

Distinct(Box<GraphPattern>)

Distinct pattern

Reduced(Box<GraphPattern>)

Reduced pattern

Slice

Slice pattern (LIMIT/OFFSET)

Fields

inner: Box<GraphPattern>

offset: usize

limit: Option<usize>

Trait Implementations

impl Clone for GraphPattern

fn clone(&self) -> GraphPattern

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for GraphPattern

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for GraphPattern

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for GraphPattern

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

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 GraphPattern