Struct RelativePathElement 

pub struct RelativePathElement {
    pub reference_type_id: NodeId,
    pub is_inverse: bool,
    pub include_subtypes: bool,
    pub target_name: QualifiedName,
}

Fields

reference_type_id: NodeId

is_inverse: bool

include_subtypes: bool

target_name: QualifiedName

Implementations

impl RelativePathElement

pub fn default_node_resolver( namespace: u16, browse_name: &str, ) -> Option<NodeId>

This is the default node resolver that attempts to resolve a browse name onto a reference type id. The default implementation resides in the types module so it doesn’t have access to the address space.

Therefore it makes a best guess by testing the browse name against the standard reference types and if fails to match it will produce a node id from the namespace and browse name.

pub fn default_browse_name_resolver(node_id: &NodeId) -> Option<String>

pub fn from_str<CB>( path: &str, node_resolver: &CB, ) -> Result<RelativePathElement, ()>

where CB: Fn(u16, &str) -> Option<NodeId>,

Parse a relative path element according to the OPC UA Part 4 Appendix A BNF

<relative-path> ::= <reference-type> <browse-name> [relative-path] <reference-type> ::= '/' | '.' | '<' ['#'] ['!'] <browse-name> '>' <browse-name> ::= [<namespace-index> ':'] <name> <namespace-index> ::= <digit> [<digit>] <digit> ::= '0' | '1' | '2' | '3' | '4' | '5' | '6' | '7' | '8' | '9' <name> ::= (<name-char> | '&' <reserved-char>) [<name>] <reserved-char> ::= '/' | '.' | '<' | '>' | ':' | '#' | '!' | '&' <name-char> ::= All valid characters for a String (see Part 3) excluding reserved-chars.

Examples

• /foo
• /0:foo
• .bar
• <0:HasEncoding>bar
• <!NonHierarchicalReferences>foo
• <#!2:MyReftype>2:blah

Trait Implementations

impl BinaryEncoder<RelativePathElement> for RelativePathElement

fn byte_len(&self) -> usize

Returns the exact byte length of the structure as it would be if encode were called. This may be called prior to writing to ensure the correct amount of space is available.

fn encode<S: Write>(&self, stream: &mut S) -> EncodingResult<usize>

Encodes the instance to the write stream.

fn decode<S: Read>( stream: &mut S, decoding_options: &DecodingOptions, ) -> EncodingResult<Self>

Decodes an instance from the read stream. The decoding options contains restrictions set by the server / client on the length of strings, arrays etc. If these limits are exceeded the implementation should return with a BadDecodingError as soon as possible.

fn encode_to_vec(&self) -> Vec<u8>

impl Clone for RelativePathElement

fn clone(&self) -> RelativePathElement

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for RelativePathElement

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'a> From<&'a RelativePathElement> for String

fn from(element: &'a RelativePathElement) -> String

Converts to this type from the input type.

impl MessageInfo for RelativePathElement

fn object_id(&self) -> ObjectId

The object id associated with the message

impl PartialEq for RelativePathElement

fn eq(&self, other: &RelativePathElement) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for RelativePathElement