ExecutionContext class abstract interface

An execution context for client functions, providing access to data and other functions.

Properties

hashCode → int

The hash code for this object.

no setter, inherited

path → DataPath

The path associated with this context.

no setter

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

evaluateConditionStream(Object? condition) → Stream<bool>

Evaluates a dynamic boolean condition and returns a Stream<bool>.

getFunction(String name) → ClientFunction?

Retrieves a function by name from this context.

getValue<T>(DataPath path) → T?

Gets a value, resolving the path against the current context.

nested(DataPath relativePath) → ExecutionContext

Creates a new, nested ExecutionContext for a child widget.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

resolve(Object? value) → Stream<Object?>

Resolves any dynamic values (bindings or function calls) in the given value.

resolvePath(DataPath pathToResolve) → DataPath

Resolves a path against the current context's path.

subscribe<T>(DataPath path) → ValueListenable<T?>

Subscribes to a path, resolving it against the current context.

subscribeStream<T>(DataPath path) → Stream<T?>

Subscribes to a path and returns a Stream.

toString() → String

A string representation of this object.

inherited

update(DataPath path, Object? contents) → void

Updates the data model, resolving the path against the current context.

Operators

operator ==(Object other) → bool

The equality operator.

inherited