Struct BatchFilters 

pub struct BatchFilters<K>
where
    K: DataTrait + ?Sized,
{ /* private fields */ }

Ordered key filters for exact-key probes against file-backed batches.

The key range is kept separately from the trait objects because batches thread typed bounds through file-writer finalization and rebuild the range when they create a new reader. All other filters are stored behind a trait object so we can swap bloom for bitmap or another single post-range filter without changing the batch structs again.

Implementations

impl<K> BatchFilters<K>

where K: DataTrait + ?Sized,

pub fn from_parts( key_bounds: Option<(Box<K>, Box<K>)>, membership_filter: Option<BatchKeyFilter>, ) -> Self

Rebuilds the filter chain from persisted key bounds and an optional membership filter.

This is the public constructor for callers that read filter state back from disk and want the same range-then-membership behavior that trace batches use for seek_key_exact.

pub fn stats(&self) -> BatchFilterStats

Returns cumulative statistics for the range and membership filters.

pub fn membership_filter_kind(&self) -> FilterKind

pub fn key_bounds(&self) -> Option<(&K, &K)>

Returns the cached key bounds, when available.

pub fn maybe_contains_key(&self, key: &K, hash: Option<u64>) -> bool

Returns false only when key is definitely not present.

Passing a cached hash avoids recomputing it when the caller already has one available.

Trait Implementations

impl<K> Clone for BatchFilters<K>

where K: DataTrait + ?Sized,

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<K> SizeOf for BatchFilters<K>

where K: DataTrait + ?Sized,

fn size_of_children(&self, context: &mut Context)

Gets the size of all “children” owned by this value, not including the size of the value itself.

fn size_of(&self) -> TotalSize

Gets the total size of the current value

fn size_of_with_context(&self, context: &mut Context)

Adds the size of the current value to the given Context, including both the size of the value itself and all of its children