TypeLoader

opcua_types::type_loader

Trait TypeLoader 

Source 
pub trait TypeLoader: Send + Sync {
    // Required methods
    fn load_from_xml(
        &self,
        node_id: &NodeId,
        stream: &mut XmlStreamReader<&mut dyn Read>,
        ctx: &Context<'_>,
        name: &str,
    ) -> Option<EncodingResult<Box<dyn DynEncodable>>>;
    fn load_from_json(
        &self,
        node_id: &NodeId,
        stream: &mut JsonStreamReader<&mut dyn Read>,
        ctx: &Context<'_>,
    ) -> Option<EncodingResult<Box<dyn DynEncodable>>>;
    fn load_from_binary(
        &self,
        node_id: &NodeId,
        stream: &mut dyn Read,
        ctx: &Context<'_>,
        length: Option<usize>,
    ) -> Option<EncodingResult<Box<dyn DynEncodable>>>;

    // Provided method
    fn priority(&self) -> TypeLoaderPriority { ... }
}
Expand description

Trait for a collection of types. Each method in this trait should try to decode the passed stream/body into a DynEncodable, and return None if the node_id does not match any variant. It should only return an error if the node_id is a match, but decoding failed.

Required Methods§

Source

fn load_from_xml( &self, node_id: &NodeId, stream: &mut XmlStreamReader<&mut dyn Read>, ctx: &Context<'_>, name: &str, ) -> Option<EncodingResult<Box<dyn DynEncodable>>>

Load the type given by node_id from XML by trying each registered type loader until one returns Some.

Source

fn load_from_json( &self, node_id: &NodeId, stream: &mut JsonStreamReader<&mut dyn Read>, ctx: &Context<'_>, ) -> Option<EncodingResult<Box<dyn DynEncodable>>>

Load the type given by node_id from JSON by trying each registered type loader until one returns Some.

Source

fn load_from_binary( &self, node_id: &NodeId, stream: &mut dyn Read, ctx: &Context<'_>, length: Option<usize>, ) -> Option<EncodingResult<Box<dyn DynEncodable>>>

Load the type given by node_id from Binary by trying each registered type loader until one returns Some.

Provided Methods§

Source

fn priority(&self) -> TypeLoaderPriority

Get the priority of this type loader.

Implementors§