Struct QueryFirstRequest

pub struct QueryFirstRequest {
    pub request_header: RequestHeader,
    pub view: ViewDescription,
    pub node_types: Option<Vec<NodeTypeDescription>>,
    pub filter: ContentFilter,
    pub max_data_sets_to_return: Counter,
    pub max_references_to_return: Counter,
}

https://reference.opcfoundation.org/v105/Core/docs/Part4/5.10.3/#5.10.3.1

Fields

request_header: RequestHeader

view: ViewDescription

node_types: Option<Vec<NodeTypeDescription>>

filter: ContentFilter

max_data_sets_to_return: Counter

max_references_to_return: Counter

Trait Implementations

impl BinaryDecodable for QueryFirstRequest

fn decode<S: Read + ?Sized>( stream: &mut S, ctx: &Context<'_>, ) -> 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.

impl BinaryEncodable for QueryFirstRequest

fn byte_len(&self, ctx: &Context<'_>) -> 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 + ?Sized>( &self, stream: &mut S, ctx: &Context<'_>, ) -> EncodingResult<()>

Encodes the instance to the write stream.

fn encode_to_vec(&self, ctx: &Context<'_>) -> Vec<u8>

Convenience method for encoding a message straight into an array of bytes. It is preferable to reuse buffers than to call this so it should be reserved for tests and trivial code.

impl Clone for QueryFirstRequest

fn clone(&self) -> QueryFirstRequest

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for QueryFirstRequest

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

Formats the value using the given formatter.

impl Default for QueryFirstRequest

fn default() -> QueryFirstRequest

Returns the “default value” for a type.

impl JsonDecodable for QueryFirstRequest

fn decode( stream: &mut JsonStreamReader<&mut dyn Read>, ctx: &Context<'_>, ) -> EncodingResult<Self>

Decode Self from a JSON stream.

impl JsonEncodable for QueryFirstRequest

fn encode( &self, stream: &mut JsonStreamWriter<&mut dyn Write>, ctx: &Context<'_>, ) -> EncodingResult<()>

Write the type to the provided JSON writer.

impl MessageInfo for QueryFirstRequest

fn type_id(&self) -> ObjectId

The binary type id associated with the message

fn json_type_id(&self) -> ObjectId

The JSON type id associated with the message.

fn xml_type_id(&self) -> ObjectId

The XML type id associated with the message.

fn data_type_id(&self) -> DataTypeId

The data type id associated with the message.

impl PartialEq for QueryFirstRequest

fn eq(&self, other: &QueryFirstRequest) -> 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 UaNullable for QueryFirstRequest

fn is_ua_null(&self) -> bool

Return true if this value is null, meaning it can be left out when being encoded in JSON and XML encodings.

impl XmlDecodable for QueryFirstRequest

fn decode( stream: &mut XmlStreamReader<&mut dyn Read>, ctx: &Context<'_>, ) -> EncodingResult<Self>

Decode a value from an XML stream.

impl XmlEncodable for QueryFirstRequest

fn encode( &self, stream: &mut XmlStreamWriter<&mut dyn Write>, ctx: &Context<'_>, ) -> EncodingResult<()>

Encode a value to an XML stream.

impl XmlType for QueryFirstRequest

const TAG: &'static str = "QueryFirstRequest"

The static fallback tag for this type. Convenience feature, but also used in nested types.

fn tag(&self) -> &str

The XML tag name for this type.

impl StructuralPartialEq for QueryFirstRequest