Struct opcua_types::basic_types::ExtensionObject

pub struct ExtensionObject {
    pub node_id: NodeId,
    pub body: ExtensionObjectEncoding,
}

A structure that contains an application specific data type that may not be recognized by the receiver. Data type ID 22

Fields

node_id: NodeId

body: ExtensionObjectEncoding

Methods

impl ExtensionObject

fn null() -> ExtensionObject

Creates a null extension object, i.e. one with no value or payload

fn is_null(&self) -> bool

fn is_empty(&self) -> bool

fn from_encodable<N, T>(node_id: N, encodable: T) -> ExtensionObject where
    N: 'static + Into<NodeId>,
    T: BinaryEncoder<T>, 

Creates an extension object with the specified node id and the encodable object as its payload. The body is set to a byte string containing the encoded struct.

fn decode_inner<T>(&self) -> EncodingResult<T> where
    T: BinaryEncoder<T>, 

Decodes the inner content of the extension object and returns it. The node id is ignored for decoding. The caller supplies the binary encoder impl that should be used to extract the data. Errors result in a decoding error.

Trait Implementations

impl PartialEq for ExtensionObject

fn eq(&self, __arg_0: &ExtensionObject) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, __arg_0: &ExtensionObject) -> bool

This method tests for !=.

impl Debug for ExtensionObject

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Clone for ExtensionObject

fn clone(&self) -> ExtensionObject

Returns a copy of the value.

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

Performs copy-assignment from source.

impl BinaryEncoder<ExtensionObject> for ExtensionObject

fn byte_len(&self) -> usize

Returns the byte length of the structure. This calculation should be exact and as efficient as possible.

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

Encodes the instance to the write stream.

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

Decodes an instance from the read stream.