Trait DiskANNQueryRead 

pub trait DiskANNQueryRead: DiskANNCanonicalRead {
    // Required methods
    fn document_origin(
        &self,
        document: DocId,
        control: &StorageReadControl,
    ) -> StorageBackendResult<Option<DiskANNCanonicalOrigin>>;
    fn next_change_after(
        &self,
        after: Option<DocId>,
        control: &StorageReadControl,
    ) -> StorageBackendResult<Option<DiskANNChangeIdentity>>;

    // Provided methods
    fn unversioned_vectors(&self) -> Option<&VectorReadSnapshot> { ... }
    fn vector_count(
        &self,
        control: &StorageReadControl,
    ) -> StorageBackendResult<usize> { ... }
    fn contains_vectors(
        &self,
        document: DocId,
        control: &StorageReadControl,
    ) -> StorageBackendResult<bool> { ... }
}

A retained canonical source with the actual versioned change journal on that same view. The lifecycle owner must establish complete coverage before opening a query; absence from this journal alone is not proof of build membership.

Required Methods

fn document_origin( &self, document: DocId, control: &StorageReadControl, ) -> StorageBackendResult<Option<DiskANNCanonicalOrigin>>

Return the selected mutation and complete tensor cardinality after validating its ordinal-key coverage. This metadata probe must not decode coordinate values or inspect graph pages; empty replacements return Some with count zero.

fn next_change_after( &self, after: Option<DocId>, control: &StorageReadControl, ) -> StorageBackendResult<Option<DiskANNChangeIdentity>>

Return current journaled documents in strictly increasing order, including empty replacements. Validate the immutable change envelope against its current canonical origin; skip obsolete versions without loading their values.

Provided Methods

fn unversioned_vectors(&self) -> Option<&VectorReadSnapshot>

An independently retained complete value view used when an index definition changed. Origins exposed by this source cover only tensors verified equal to its actual versioned source; the remaining tensors join the ordinary uncovered-candidate stream without fabricated mutation versions.

fn vector_count( &self, control: &StorageReadControl, ) -> StorageBackendResult<usize>

Count visible ordinals from complete origin metadata without decoding coordinates or preparing a graph reader.

fn contains_vectors( &self, document: DocId, control: &StorageReadControl, ) -> StorageBackendResult<bool>

Test nonempty membership using complete canonical metadata on this exact view.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl<S: DiskANNQueryRead> DiskANNQueryRead for Budgeted<Retained<S>>

fn document_origin( &self, document: DocId, control: &StorageReadControl, ) -> StorageBackendResult<Option<DiskANNCanonicalOrigin>>

fn next_change_after( &self, after: Option<DocId>, control: &StorageReadControl, ) -> StorageBackendResult<Option<DiskANNChangeIdentity>>

Implementors

impl DiskANNQueryRead for DiskANNReadSnapshot

impl DiskANNQueryRead for RetainedDiskANNCanonical