[−][src]Struct imdb_index::NameQuery
A query for searching the name index.
A query provides the name query and defines the maximum number of results returned by searching the name index.
Methods
impl NameQuery
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pub fn new(name: &str) -> NameQuery
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Create a query that searches the given name.
pub fn with_size(self, size: usize) -> NameQuery
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Set this query's result set size. At most size
results will be
returned when searching with this query.
pub fn with_scorer(self, scorer: NameScorer) -> NameQuery
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Set this query's scorer. By default, Okapi BM25 is used.
pub fn with_stop_word_ratio(self, ratio: f64) -> NameQuery
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Set the ratio (in the range 0.0
to 1.0
, inclusive) at which a term
is determined to be a stop word. Set to 0.0
to disable. By default
this is set to a non-zero value.
This ratio is used at query time to partition all of the ngrams in the
query into two bins: one bin is for "low frequency" ngrams while the
other is for "high frequency" ngrams. The partitioning is determined
by this ratio. Namely, if an ngram occurs in fewer than ratio
documents in the entire corpus, then it is considered a low frequency
ngram.
Once these two partitions are created, both are used to create two disjunction queries. The low frequency query drives search results, while the high frequency query is only used to boost scores when it matches a result yielded by the low frequency query. Otherwise, results from the high frequency query aren't considered.
Trait Implementations
impl Clone for NameQuery
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fn clone(&self) -> NameQuery
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fn clone_from(&mut self, source: &Self)
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Performs copy-assignment from source
. Read more
impl Debug for NameQuery
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Auto Trait Implementations
impl Send for NameQuery
impl Unpin for NameQuery
impl Sync for NameQuery
impl UnwindSafe for NameQuery
impl RefUnwindSafe for NameQuery
Blanket Implementations
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
fn to_owned(&self) -> T
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fn clone_into(&self, target: &mut T)
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,