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VecIndexBackend

Struct VecIndexBackend 

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pub struct VecIndexBackend<K, V> { /* private fields */ }
Expand description

Default sorted-Vec + HashMap-backed index backend.

Maintains a sorted Vec of IndexRow ordered by (secondary, primary_str) plus a parallel HashMap for O(1) primary lookup.

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impl<K, V> VecIndexBackend<K, V>

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pub fn new() -> Self

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impl<K, V> Default for VecIndexBackend<K, V>

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl<K: Clone + Eq + Hash + Send + Sync + ToString, V: Clone + Send + Sync> IndexBackend<K, V> for VecIndexBackend<K, V>

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fn size(&self) -> usize

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fn has(&self, primary: &K) -> bool

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fn get(&self, primary: &K) -> Option<V>

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fn get_row(&self, primary: &K) -> Option<IndexRow<K, V>>

Get the full row (primary + secondary + value) by primary key.
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fn upsert(&mut self, primary: K, secondary: String, value: V) -> bool

Returns true if inserted (new key), false if updated.
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fn upsert_many(&mut self, rows: Vec<(K, String, V)>) -> usize

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fn delete(&mut self, primary: &K) -> bool

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fn delete_many(&mut self, primaries: &[K]) -> usize

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fn clear(&mut self) -> usize

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fn to_ordered(&self) -> Vec<IndexRow<K, V>>

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fn to_primary_map(&self) -> Vec<(K, V)>

Auto Trait Implementations§

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impl<K, V> Freeze for VecIndexBackend<K, V>

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impl<K, V> RefUnwindSafe for VecIndexBackend<K, V>

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impl<K, V> Send for VecIndexBackend<K, V>
where K: Send, V: Send,

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impl<K, V> Sync for VecIndexBackend<K, V>
where K: Sync, V: Sync,

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impl<K, V> Unpin for VecIndexBackend<K, V>
where K: Unpin, V: Unpin,

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impl<K, V> UnsafeUnpin for VecIndexBackend<K, V>

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impl<K, V> UnwindSafe for VecIndexBackend<K, V>
where K: UnwindSafe, V: UnwindSafe,

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.