Struct GraphRegistry 

pub struct GraphRegistry { /* private fields */ }

Named registry for compiled graphs.

Stores graphs as type-erased Arc<dyn Any> values. Retrieval requires specifying the correct state type S — a type mismatch returns None.

Example

let mut registry = GraphRegistry::new();
registry.register("react-agent", compiled_graph);

let graph: Option<&CompiledGraph<MyState>> = registry.get("react-agent");

Implementations

impl GraphRegistry

pub fn new() -> Self

Create an empty registry.

pub fn register<S: State + 'static>( &mut self, name: impl Into<String>, graph: CompiledGraph<S>, )

Register a compiled graph under a name.

Overwrites any existing graph with the same name.

pub fn get<S: State + 'static>(&self, name: &str) -> Option<&CompiledGraph<S>>

Retrieve a graph by name, downcasting to the expected state type.

Returns None if the name doesn’t exist or the type doesn’t match.

pub fn list(&self) -> Vec<&str>

List all registered graph names.

pub fn contains(&self, name: &str) -> bool

Check if a graph is registered under the given name.

pub fn len(&self) -> usize

Number of registered graphs.

pub fn is_empty(&self) -> bool

Whether the registry is empty.

Trait Implementations

impl Default for GraphRegistry

fn default() -> Self

Returns the “default value” for a type.