RowScope class
A sub-scope of a QueryScope for one part of its tree — typically one row
of a long list — that rebuilds on its own (SlingRow is the widget form).
Accessors rebound to it (bind) read through the same cache and add to
the same selection tree as the parent's, and misses and writes go to the
parent (it still owns the request, loading and error state); only the
dependency keys are this scope's own. A write to Launch:x.favorite
then re-runs the one row that read it instead of the parent's whole
build — the parent depends only on what it read itself (the list).
A row keeps working through a parent rebuild: the parent hands it fresh accessors, bound again on the row's next run.
- Implemented types
Properties
- cache → Cache
-
no setteroverride
-
deps
→ Set<
String> -
Dependency keys read during the last run (and by accessors bound in
it afterwards).
no setteroverride
- hashCode → int
-
The hash code for this object.
no setterinherited
- onChanged → void Function()
-
Invoked when a write touched one of this row's deps.
final
- operation → String
-
query,mutationorsubscription.no setteroverride -
parent
→ QueryScope<
Accessor> -
The query scope misses, writes, selections and fetch state belong to.
final
- root → Selection
-
Root of the selection tree recorded in the current scope.
no setteroverride
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
bind<
A extends Accessor> (A accessor, A ctor(Recorder, Selection, List< Object> )) → A -
Rebinds
accessor(an accessor handed out by the parent or by another row of it) to this scope, via its generated constructorctor. -
dispose(
) → void -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
onMiss(
Selection leaf) → void -
Called when a field was read but is not in the cache. For object and
list fields the node itself is reported (its children come as the
skeleton accessors are read).
override
-
onWrite(
CacheWrite write) → void -
Called on manual writes (generated setters) so dependants can be
re-rendered and, during a mutation's optimistic phase, so the write can
be undone if the mutation fails.
override
-
run<
A extends Accessor, T> (A accessor, A ctor(Recorder, Selection, List< Object> ), T body(A bound)) → T -
Runs
bodywithaccessorbound to this scope and fresh deps. -
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited