Struct re_query::Caches

pub struct Caches { /* private fields */ }

Implementations

impl Caches

pub fn new(store: &DataStore) -> Self

pub fn clear(&self)

impl Caches

pub fn stats(&self) -> CachesStats

Computes the stats for all primary caches.

impl Caches

pub fn latest_at_component_with_log_level<C: Component>( &self, store: &DataStore, resolver: &PromiseResolver, entity_path: &EntityPath, query: &LatestAtQuery, level: Level ) -> Option<LatestAtMonoResult<C>>

Get the latest index and value for a given dense re_types_core::Component.

Returns None if the data is a promise that has yet to be resolved.

This assumes that the row we get from the store contains at most one instance for this component; it will generate a log message of level otherwise.

This should only be used for “mono-components” such as Transform and Tensor.

This is a best-effort helper, it will merely log messages on failure.

pub fn latest_at_component<C: Component>( &self, store: &DataStore, resolver: &PromiseResolver, entity_path: &EntityPath, query: &LatestAtQuery ) -> Option<LatestAtMonoResult<C>>

Get the latest index and value for a given dense re_types_core::Component.

This assumes that the row we get from the store contains at most one instance for this component; it will log a warning otherwise.

This should only be used for “mono-components” such as Transform and Tensor.

This is a best-effort helper, it will merely log errors on failure.

pub fn latest_at_component_quiet<C: Component>( &self, store: &DataStore, resolver: &PromiseResolver, entity_path: &EntityPath, query: &LatestAtQuery ) -> Option<LatestAtMonoResult<C>>

Get the latest index and value for a given dense re_types_core::Component.

This assumes that the row we get from the store contains at most one instance for this component; it will return None and log a debug message otherwise.

This should only be used for “mono-components” such as Transform and Tensor.

This is a best-effort helper, it will merely logs debug messages on failure.

pub fn latest_at_component_at_closest_ancestor<C: Component>( &self, store: &DataStore, resolver: &PromiseResolver, entity_path: &EntityPath, query: &LatestAtQuery ) -> Option<(EntityPath, LatestAtMonoResult<C>)>

Call Self::latest_at_component at the given path, walking up the hierarchy until an instance is found.

impl Caches

pub fn latest_at( &self, store: &DataStore, query: &LatestAtQuery, entity_path: &EntityPath, component_names: impl IntoIterator<Item = ComponentName> ) -> LatestAtResults

Queries for the given component_names using latest-at semantics.

See LatestAtResults for more information about how to handle the results.

This is a cached API – data will be lazily cached upon access.

impl Caches

pub fn range( &self, store: &DataStore, query: &RangeQuery, entity_path: &EntityPath, component_names: impl IntoIterator<Item = ComponentName> ) -> RangeResults

Queries for the given component_names using range semantics.

See RangeResults for more information about how to handle the results.

This is a cached API – data will be lazily cached upon access.

Trait Implementations

impl Debug for Caches

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl StoreSubscriber for Caches

fn name(&self) -> String

Arbitrary name for the subscriber.

fn as_any(&self) -> &dyn Any

Workaround for downcasting support, simply return self:

fn as_any_mut(&mut self) -> &mut dyn Any

Workaround for downcasting support, simply return self:

fn on_events(&mut self, events: &[StoreEvent])

The core of this trait: get notified of changes happening in all DataStores.