QueryState<T> class

Represents the state of a single query.

This class is immutable and provides convenient getters for common states.

Annotations

Constructors

QueryState.error(Object error, [T? previousData]): Factory constructor for an error state. previousData can be provided to show existing data even on error.
factory
QueryState.idle(): Factory constructor for an initial idle state.
factory
QueryState.loading([T? previousData]): Factory constructor for a loading state. previousData can be provided to show existing data while loading.
factory
QueryState.success(T data, {bool isStale = false}): Factory constructor for a success state.
factory

data → T?: The data returned by the query. Null if no data has been fetched or on error.
final
error → Object?: The error encountered during the query, if any
final
hasData → bool: True if the query has data (even if it's stale or there's an error).
no setter
hashCode → int: The hash code for this object.
no setteroverride
isError → bool: True if the query encountered an error.
no setter
isLoading → bool: True if the query is currently fetching data.
no setter
isStale → bool: True if the data is considered stale and might be refetched in the background
final
isSuccess → bool: True if the query has successfully fetched data.
no setter
lastFetched → DateTime?: The timestamp when the data was last successfully fetched
final
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
status → QueryStatus: The current status of the query (e.g., loading, success, error)
final

copyWith({T? data, Object? error, QueryStatus? status, bool? isStale, DateTime? lastFetched}) → QueryState<T>: Creates a copy of this QueryState with updated values.
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
toString() → String: A string representation of this object.
override