QueryObserver<T> class
final
Reactive lifecycle around one Query cache entry.
- Implemented types
Constructors
-
QueryObserver(QueryClient client, QueryOptions<
T> options) -
Creates an observer for
optionsonclient.
Properties
- client → QueryClient
-
The client that owns the observed query.
final
-
current
→ QueryResult<
T> -
The current UI-facing result.
no setter
- enabled → bool
-
Whether this observer permits automatic fetching.
no setteroverride
- hashCode → int
-
The hash code for this object.
no setterinherited
- isStatic → bool
-
Whether this observer treats data as immutable.
no setteroverride
-
options
→ QueryOptions<
T> -
The current query definition.
no setter
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
dispose(
) → void - Releases timers and query subscriptions held by this observer.
-
fetchForSignal(
) → void -
Starts a fetch requested by a runtime signal.
override
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
onQueryUpdate(
) → void -
Receives query state changes.
override
-
refetch(
{bool cancelRefetch = true}) → Future< QueryResult< T> > - Fetches the query and returns the resulting state projection.
-
setOptions(
QueryOptions< T> value) → void - Updates the definition without remounting the same cached query.
-
shouldRefetchOnFocus(
) → bool -
Whether regaining focus should refetch the query.
override
-
shouldRefetchOnReconnect(
) → bool -
Whether reconnecting should refetch the query.
override
-
subscribe(
void listener(QueryResult< T> result)) → QueryDispose - Subscribes to results and starts observer-driven fetching.
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited