[−][src]Trait rdftk_core::graph::Graph

pub trait Graph {
    fn is_empty(&self) -> bool;
    fn len(&self) -> usize;
    fn contains(&self, statement: &Statement) -> bool;
    fn contains_all(
        &self, 
        subject: &SubjectNode, 
        predicate: &IRIRef, 
        object: &ObjectNode
    ) -> bool;
    fn statements(&self) -> Vec<Rc<Statement>>;
    fn statements_for(&self, subject: &SubjectNode) -> Vec<Rc<Statement>>;
    fn subjects(&self) -> HashSet<&SubjectNode>;
    fn predicates(&self) -> HashSet<&IRIRef>;
    fn predicates_for(&self, subject: &SubjectNode) -> HashSet<&IRIRef>;
    fn objects(&self) -> HashSet<&ObjectNode>;
    fn objects_for(
        &self, 
        subject: &SubjectNode, 
        predicate: &IRIRef
    ) -> HashSet<&ObjectNode>;
    fn resource_for(&self, subject: &SubjectNode) -> Resource;
    fn prefix_mappings(&self) -> Rc<dyn PrefixMappings>;
}