VectorTableRead

Struct VectorTableRead 

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pub struct VectorTableRead<const DIM: usize> { /* private fields */ }
Expand description

Read-only vector table providing efficient access.

This table leverages Manifold’s fixed-width Value trait for arrays, which deserializes directly from memory-mapped pages.

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impl<const DIM: usize> VectorTableRead<DIM>

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pub fn open(txn: &ReadTransaction, name: &str) -> Result<Self, StorageError>

Opens a vector table for reading.

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pub fn get( &self, key: &Uuid, ) -> Result<Option<VectorGuard<'_, DIM>>, StorageError>

Retrieves a vector by key.

Returns a guard that holds the vector data cached from deserialization. The vector is deserialized once when the guard is created.

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pub fn len(&self) -> Result<u64, StorageError>

Returns the number of vectors stored in this table.

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pub fn is_empty(&self) -> Result<bool, StorageError>

Returns true if the table contains no vectors.

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pub fn all_vectors(&self) -> Result<VectorIter<'_, DIM>, StorageError>

Iterates over all vectors in the table.

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impl<const DIM: usize> VectorSource<DIM> for VectorTableRead<DIM>

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type Iter<'a> = VectorIter<'a, DIM> where Self: 'a

Iterator type over vectors with zero-copy access
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fn all_vectors(&self) -> Result<Self::Iter<'_>, StorageError>

Returns an iterator over all vectors Read more
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fn len(&self) -> Result<u64, StorageError>

Returns the number of vectors
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fn is_empty(&self) -> Result<bool, StorageError>

Returns true if empty

Auto Trait Implementations§

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impl<const DIM: usize> Freeze for VectorTableRead<DIM>

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impl<const DIM: usize> !RefUnwindSafe for VectorTableRead<DIM>

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impl<const DIM: usize> Send for VectorTableRead<DIM>

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impl<const DIM: usize> Sync for VectorTableRead<DIM>

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impl<const DIM: usize> Unpin for VectorTableRead<DIM>

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impl<const DIM: usize> !UnwindSafe for VectorTableRead<DIM>

Blanket Implementations§

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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, 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.