Struct QueryIterFilter 

pub struct QueryIterFilter { /* private fields */ }

Filter iterator - applies predicate to upstream

Implementations

impl QueryIterFilter

pub fn new<F>( upstream: Box<dyn BindingIterator>, predicate: F, ) -> QueryIterFilter

where F: Fn(&Binding) -> bool + Send + Sync + 'static,

Create filter iterator

Trait Implementations

impl BindingIterator for QueryIterFilter

fn next_binding(&mut self) -> Result<Option<Binding>, IterError>

Get next binding

fn vars(&self) -> Vec<Var>

Get variables produced by this iterator

fn cancel(&mut self)

Cancel iteration

fn has_next(&self) -> bool

Check if there are more results (optional hint)

fn reset(&mut self) -> bool

Reset iterator to beginning (if supported)

impl Debug for QueryIterFilter

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

Formats the value using the given formatter.