Struct mentat::QueryOutput

pub struct QueryOutput {
    pub spec: Rc<FindSpec>,
    pub results: QueryResults,
}

Fields

spec: Rc<FindSpec>

results: QueryResults

Methods

impl QueryOutput

Important traits for Box<R>

impl<R> Read for Box<R> where
    R: Read + ?Sized, impl<W> Write for Box<W> where
    W: Write + ?Sized, impl<I> Iterator for Box<I> where
    I: Iterator + ?Sized,  type Item = <I as Iterator>::Item;

pub fn empty_factory(spec: &FindSpec) -> Box<Fn() + 'static>

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

pub fn empty(spec: &Rc<FindSpec>) -> QueryOutput

pub fn from_constants(     spec: &Rc<FindSpec>,     bindings: BTreeMap<Variable, TypedValue> ) -> QueryResults

pub fn into_scalar(self) -> Result<Option<Binding>, ProjectorError>

pub fn into_coll(self) -> Result<Vec<Binding>, ProjectorError>

pub fn into_tuple(self) -> Result<Option<Vec<Binding>>, ProjectorError>

pub fn into_rel(self) -> Result<RelResult<Binding>, ProjectorError>

Trait Implementations

impl From<QueryOutput> for QueryResults

fn from(o: QueryOutput) -> QueryResults

Performs the conversion.

impl Eq for QueryOutput

impl PartialEq<QueryOutput> for QueryOutput

fn eq(&self, __arg_0: &QueryOutput) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, __arg_0: &QueryOutput) -> bool

This method tests for !=.

impl Debug for QueryOutput

fn fmt(&self, __arg_0: &mut Formatter) -> Result<(), Error>

Formats the value using the given formatter.