pub(crate) struct MetricEngineState {
physical_regions: HashMap<RegionId, PhysicalRegionState>,
logical_regions: HashMap<RegionId, RegionId>,
logical_columns: HashMap<RegionId, Vec<ColumnMetadata>>,
}
Expand description
Internal states of metric engine
Fields§
§physical_regions: HashMap<RegionId, PhysicalRegionState>
Physical regions states.
logical_regions: HashMap<RegionId, RegionId>
Mapping from logical region id to physical region id.
logical_columns: HashMap<RegionId, Vec<ColumnMetadata>>
Cache for the column metadata of logical regions. The column order is the same with the order in the metadata, which is alphabetically ordered on column name.
Implementations§
Source§impl MetricEngineState
impl MetricEngineState
pub fn add_physical_region( &mut self, physical_region_id: RegionId, physical_columns: HashMap<String, ColumnId>, primary_key_encoding: PrimaryKeyEncoding, options: PhysicalRegionOptions, time_index_unit: TimeUnit, )
Sourcepub fn add_physical_columns(
&mut self,
physical_region_id: RegionId,
physical_columns: impl IntoIterator<Item = (String, ColumnId)>,
)
pub fn add_physical_columns( &mut self, physical_region_id: RegionId, physical_columns: impl IntoIterator<Item = (String, ColumnId)>, )
§Panic
if the physical region does not exist
Sourcepub fn add_logical_regions(
&mut self,
physical_region_id: RegionId,
logical_region_ids: impl IntoIterator<Item = RegionId>,
)
pub fn add_logical_regions( &mut self, physical_region_id: RegionId, logical_region_ids: impl IntoIterator<Item = RegionId>, )
§Panic
if the physical region does not exist
pub fn invalid_logical_regions_cache( &mut self, logical_region_ids: impl IntoIterator<Item = RegionId>, )
Sourcepub fn add_logical_region(
&mut self,
physical_region_id: RegionId,
logical_region_id: RegionId,
)
pub fn add_logical_region( &mut self, physical_region_id: RegionId, logical_region_id: RegionId, )
§Panic
if the physical region does not exist
Sourcepub fn set_logical_columns(
&mut self,
logical_region_id: RegionId,
columns: Vec<ColumnMetadata>,
)
pub fn set_logical_columns( &mut self, logical_region_id: RegionId, columns: Vec<ColumnMetadata>, )
Replace the logical columns of the logical region with given columns.
pub fn get_physical_region_id( &self, logical_region_id: RegionId, ) -> Option<RegionId>
pub fn logical_columns(&self) -> &HashMap<RegionId, Vec<ColumnMetadata>>
pub fn physical_region_states(&self) -> &HashMap<RegionId, PhysicalRegionState>
pub fn exist_physical_region(&self, physical_region_id: RegionId) -> bool
pub fn physical_region_time_index_unit( &self, physical_region_id: RegionId, ) -> Option<TimeUnit>
pub fn get_primary_key_encoding( &self, physical_region_id: RegionId, ) -> Option<PrimaryKeyEncoding>
pub fn logical_regions(&self) -> &HashMap<RegionId, RegionId>
Sourcepub fn remove_physical_region(
&mut self,
physical_region_id: RegionId,
) -> Result<()>
pub fn remove_physical_region( &mut self, physical_region_id: RegionId, ) -> Result<()>
Remove all data that are related to the physical region id.
Sourcepub fn remove_logical_region(
&mut self,
logical_region_id: RegionId,
) -> Result<()>
pub fn remove_logical_region( &mut self, logical_region_id: RegionId, ) -> Result<()>
Remove all data that are related to the logical region id.
pub fn is_logical_region_exist(&self, logical_region_id: RegionId) -> bool
Trait Implementations§
Source§impl Default for MetricEngineState
impl Default for MetricEngineState
Source§fn default() -> MetricEngineState
fn default() -> MetricEngineState
Returns the “default value” for a type. Read more
Auto Trait Implementations§
impl Freeze for MetricEngineState
impl RefUnwindSafe for MetricEngineState
impl Send for MetricEngineState
impl Sync for MetricEngineState
impl Unpin for MetricEngineState
impl UnwindSafe for MetricEngineState
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