SnapshotRegistry class

Central registry for state providers with key mapping.

The registry maps string keys to state handlers (exporter/importer pairs) and enforces unique key registration. This is an internal class used by the Checkpoint SDK to manage registered state contributors.

Thread-safety: Registration and lookup operations are synchronized to ensure safe concurrent access.

Properties

count → int

Gets the number of registered handlers.

no setter

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

clear() → void

Clears all registered handlers.

getAllKeys() → List<String>

Gets all registered keys in a deterministic order.

getExporter(String key) → Map<String, dynamic> Function()?

Gets the exporter function for the given key.

getImporter(String key) → void Function(Map<String, dynamic>)?

Gets the importer function for the given key.

isRegistered(String key) → bool

Checks if a key is registered.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

register(String key, Map<String, dynamic> exporter(), void importer(Map<String, dynamic>)) → void

Registers a state handler with the given key.

synchronized<T>(T action()) → T

Executes a function within a synchronized block.

toString() → String

A string representation of this object.

inherited

unregister(String key) → bool

Unregisters a state handler with the given key.

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Properties

instance → SnapshotRegistry

Get the singleton instance.

no setter