Struct ResultsState 

pub struct ResultsState {
    pub current_results: Option<QueryResponse>,
    pub results_cache: HashMap<String, CachedResult>,
    pub max_cache_size: usize,
    pub total_memory_usage: usize,
    pub memory_limit: usize,
    pub last_query: String,
    pub last_execution_time: Duration,
    pub query_performance_history: VecDeque<QueryPerformance>,
    pub from_cache: bool,
    pub last_modified: Instant,
}

Centralized query results state management

Fields

current_results: Option<QueryResponse>

Current query results for active buffer

results_cache: HashMap<String, CachedResult>

Results cache with LRU behavior

max_cache_size: usize

Maximum cache size (number of queries)

total_memory_usage: usize

Memory usage tracking

memory_limit: usize

Memory limit in bytes

last_query: String

Last query executed

last_execution_time: Duration

Last query execution time

query_performance_history: VecDeque<QueryPerformance>

Query history for performance analysis

from_cache: bool

Whether results are from cache

last_modified: Instant

Last modification timestamp

Implementations

impl ResultsState

pub fn new() -> Self

pub fn set_results( &mut self, results: QueryResponse, execution_time: Duration, from_cache: bool, ) -> Result<()>

Set current query results with performance tracking

pub fn get_results(&self) -> Option<&QueryResponse>

Get current results

pub fn cache_results( &mut self, query_key: String, results: QueryResponse, ) -> Result<()>

Cache query results with LRU management

pub fn get_cached_results(&mut self, query_key: &str) -> Option<&QueryResponse>

Get cached results

pub fn clear_cache(&mut self)

Clear all cached results

pub fn get_cache_stats(&self) -> CacheStats

Get cache statistics

pub fn get_performance_stats(&self) -> PerformanceStats

Get performance statistics

Trait Implementations

impl Clone for ResultsState

fn clone(&self) -> ResultsState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ResultsState

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

Formats the value using the given formatter.

impl Default for ResultsState

fn default() -> Self

Returns the “default value” for a type.