[−][src]Trait ligature::QueryTx

pub trait QueryTx {
    pub fn all_statements(&self) -> Box<dyn Iterator<Item = PersistedStatement>>;
    pub fn match_statements(
        &self, 
        subject: Option<Subject>, 
        predicate: Option<Predicate>, 
        object: Option<Object>, 
        graph: Option<Graph>
    ) -> Box<dyn Iterator<Item = PersistedStatement>>;
    pub fn match_statements_range(
        &self, 
        subject: Option<Subject>, 
        predicate: Option<Predicate>, 
        graph: Option<Graph>, 
        range: Range
    ) -> Box<dyn Iterator<Item = PersistedStatement>>;
}

Represents a QueryTx within the context of a Ligature instance and a single Dataset

Required methods

`pub fn all_statements(&self) -> Box<dyn Iterator<Item = PersistedStatement>>`[src]

Returns all Statements in this Dataset as PersistedStatements. TODO should probably return a Result

`pub fn match_statements( &self, subject: Option<Subject>, predicate: Option<Predicate>, object: Option<Object>, graph: Option<Graph> ) -> Box<dyn Iterator<Item = PersistedStatement>>`[src]

Retuns all Statements that match the given criteria. If a parameter is None then it matches all, so passing all Nones is the same as calling all_statements. TODO should return a Result

`pub fn match_statements_range( &self, subject: Option<Subject>, predicate: Option<Predicate>, graph: Option<Graph>, range: Range ) -> Box<dyn Iterator<Item = PersistedStatement>>`[src]

Retuns all Statements that match the given criteria. If a parameter is None then it matches all. TODO should return a Result

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Implementors