Enum QueryResults 

pub enum QueryResults {
    Scalar(Option<Binding>),
    Tuple(Option<Vec<Binding>>),
    Coll(Vec<Binding>),
    Rel(RelResult<Binding>),
}

Variants

Scalar(Option<Binding>)

Tuple(Option<Vec<Binding>>)

Coll(Vec<Binding>)

Rel(RelResult<Binding>)

Implementations

impl QueryResults

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

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 Clone for QueryResults

fn clone(&self) -> QueryResults

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for QueryResults

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

Formats the value using the given formatter.

impl Eq for QueryResults

impl From<QueryOutput> for QueryResults

fn from(o: QueryOutput) -> QueryResults

Converts to this type from the input type.

impl PartialEq for QueryResults

fn eq(&self, other: &QueryResults) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for QueryResults