Struct tantivy::query::EmptyQuery [−][src]
pub struct EmptyQuery;
Expand description
EmptyQuery
is a dummy Query
in which no document matches.
It is useful for tests and handling edge cases.
Trait Implementations
Create the weight associated to a query. Read more
Returns the number of documents matching the query.
Returns an Explanation
for the score of the document.
Auto Trait Implementations
impl RefUnwindSafe for EmptyQuery
impl Send for EmptyQuery
impl Sync for EmptyQuery
impl Unpin for EmptyQuery
impl UnwindSafe for EmptyQuery
Blanket Implementations
Mutably borrows from an owned value. Read more
Convert Box<dyn Trait>
(where Trait: Downcast
) to Box<dyn Any>
. Box<dyn Any>
can
then be further downcast
into Box<ConcreteType>
where ConcreteType
implements Trait
. Read more
Convert Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
into Rc<ConcreteType>
where ConcreteType
implements Trait
. Read more
Convert &Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s. Read more
Convert &mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s. Read more