opcua_nodes/
import.rs

1use opcua_types::NodeId;
2
3use super::NodeType;
4
5pub use opcua_types::NodeSetNamespaceMapper;
6
7#[derive(Debug)]
8/// A reference produced by a type implementing [`NodeSetImport`].
9/// Note that the source of this reference is given by the node in the outer [`ImportedItem`]
10pub struct ImportedReference {
11    /// Reference target ID.
12    pub target_id: NodeId,
13    /// Reference type ID.
14    pub type_id: NodeId,
15    /// Whether this is a forward or inverse reference.
16    pub is_forward: bool,
17}
18
19#[derive(Debug)]
20/// A node with associated references produced by a type implementing [`NodeSetImport`]
21pub struct ImportedItem {
22    /// The imported node.
23    pub node: NodeType,
24    /// The list of imported references.
25    pub references: Vec<ImportedReference>,
26}
27
28/// Trait for a type that wraps a nodeset import.
29/// Currently this is implemeneted by the [`crate::xml::NodeSet2Import`] type
30/// with the `xml` feature, and by a type in the root of node set imports generated by
31/// `async-opcua-codegen`
32pub trait NodeSetImport {
33    /// Register all namespaces used by this importer in a node set map.
34    fn register_namespaces(&self, namespaces: &mut NodeSetNamespaceMapper);
35
36    /// Get a list of namespaces that this import _owns_. This must be a subset of the
37    /// namespaces it uses, registered in `register_namespaces`
38    fn get_own_namespaces(&self) -> Vec<String>;
39
40    /// Create an iterator over items imported from the nodeset.
41    /// This will usually be lazy.
42    fn load<'a>(
43        &'a self,
44        namespaces: &'a NodeSetNamespaceMapper,
45    ) -> Box<dyn Iterator<Item = ImportedItem> + 'a>;
46}
opcua_nodes/import.rs

opcua_nodes/
import.rs
