Struct FieldMetaData 

pub struct FieldMetaData {
    pub name: UAString,
    pub description: LocalizedText,
    pub field_flags: DataSetFieldFlags,
    pub built_in_type: u8,
    pub data_type: NodeId,
    pub value_rank: i32,
    pub array_dimensions: Option<Vec<u32>>,
    pub max_string_length: u32,
    pub data_set_field_id: Guid,
    pub properties: Option<Vec<KeyValuePair>>,
}

https://reference.opcfoundation.org/v105/Core/docs/Part14/6.2.3/#6.2.3.2.4

Fields

name: UAString

description: LocalizedText

field_flags: DataSetFieldFlags

built_in_type: u8

data_type: NodeId

value_rank: i32

array_dimensions: Option<Vec<u32>>

max_string_length: u32

data_set_field_id: Guid

properties: Option<Vec<KeyValuePair>>

Trait Implementations

impl BinaryDecodable for FieldMetaData

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 FieldMetaData

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 override_encoding(&self) -> Option<BuiltInDataEncoding>

Override the extension object encoding used for this type. This only makes sense if the type can only ever be encoded using a single built-in encoding.

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 FieldMetaData

fn clone(&self) -> FieldMetaData

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FieldMetaData

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

Formats the value using the given formatter.

impl Default for FieldMetaData

fn default() -> FieldMetaData

Returns the “default value” for a type.

impl JsonDecodable for FieldMetaData

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

Decode Self from a JSON stream.

impl JsonEncodable for FieldMetaData

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

Write the type to the provided JSON writer.

impl MessageInfo for FieldMetaData

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 FieldMetaData

fn eq(&self, other: &FieldMetaData) -> 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 FieldMetaData

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 FieldMetaData

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

Decode a value from an XML stream.

impl XmlEncodable for FieldMetaData

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

Encode a value to an XML stream.

impl XmlType for FieldMetaData

const TAG: &'static str = "FieldMetaData"

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 FieldMetaData