Struct QueryClient 

pub struct QueryClient { /* private fields */ }

Central query client managing cache and query execution.

Create one per application and share with all components.

Example

struct App {
    query_client: QueryClient,
}

impl App {
    fn new() -> Self {
        Self {
            query_client: QueryClient::new(),
        }
    }
}

Implementations

impl QueryClient

pub fn new() -> Self

pub fn get_query_data<T: Clone + Send + Sync + 'static>( &self, key: &QueryKey, ) -> Option<T>

Get cached data if available and not stale

pub fn set_query_data<T: Clone + Send + Sync + 'static>( &self, key: &QueryKey, data: T, options: QueryOptions, )

Set cached data

pub fn invalidate_queries(&self, pattern: &QueryKey)

Invalidate queries matching the key pattern

pub fn is_in_flight(&self, key: &QueryKey) -> bool

Check if a query is in flight (for deduplication)

pub fn set_in_flight(&self, key: &QueryKey, in_flight: bool)

Mark query as in flight

pub fn clear(&self)

Clear all cached data

pub fn gc(&self)

Run garbage collection on stale entries

Trait Implementations

impl Clone for QueryClient

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for QueryClient

fn default() -> Self

Returns the “default value” for a type.