WampMetaStateCache class final

A session-scoped, race-safe view of the standard WAMP Meta API state.

Lifecycle subscriptions are established before the initial snapshots are read. Events received during hydration are replayed in receive order, so a create or delete racing a Meta API call cannot leave the cache stale.

Properties

changes → Stream<WampMetaStateSnapshot>
Emits a new immutable snapshot after each valid lifecycle update.
no setter
hashCode → int
The hash code for this object.
no setterinherited
isClosed → bool
no setter
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
snapshot → WampMetaStateSnapshot
The latest immutable state snapshot.
no setter

Methods

close() → Future<void>
Releases the lifecycle subscriptions and closes the change stream.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited

Static Methods

start(Session session, {int maxConcurrentQueries = 16}) → Future<WampMetaStateCache>
Starts a cache for an established session.