Struct DefaultRegistry 

pub struct DefaultRegistry { /* private fields */ }

Registry of default value providers.

Stores default providers for different schemas, enabling runtime lookup of field defaults during migration.

Implementations

impl DefaultRegistry

pub fn new() -> Self

Create a new empty registry.

pub fn register(&self, schema: &str, provider: impl DefaultProvider + 'static)

Register a default provider for a schema.

pub fn register_shared(&self, schema: &str, provider: Arc<dyn DefaultProvider>)

Register a shared default provider for a schema.

pub fn get_provider(&self, schema: &str) -> Option<Arc<dyn DefaultProvider>>

Get the default provider for a schema.

pub fn get_default( &self, schema: &str, field: &str, type_name: &str, ) -> Option<Vec<u8>>

Get a default value for a field in a schema.

pub fn get_default_string( &self, schema: &str, field: &str, type_name: &str, ) -> Option<String>

Get a default value as string representation.

pub fn has_default(&self, schema: &str, field: &str) -> bool

Check if a field has a default in a schema.

pub fn schemas(&self) -> Vec<String>

Get all schemas with registered providers.

pub fn unregister(&self, schema: &str) -> bool

Unregister a default provider.

Trait Implementations

impl Default for DefaultRegistry

fn default() -> Self

Returns the “default value” for a type.