Enum NumericRange 

pub enum NumericRange {
    None,
    Index(u32),
    Range(u32, u32),
    MultipleRanges(Vec<NumericRange>),
}

Numeric range describes a range within an array. See OPCUA Part 4 7.22

This parameter is defined in Table 159. A formal BNF definition of the numeric range can be found in Clause A.3.

The syntax for the string contains one of the following two constructs. The first construct is the string representation of an individual integer. For example, 6 is valid, but 6,0 and 3,2 are not. The minimum and maximum values that can be expressed are defined by the use of this parameter and not by this parameter type definition. The second construct is a range represented by two integers separated by the colon (:) character. The first integer shall always have a lower value than the second. For example, 5:7 is valid, while 7:5 and 5:5 are not. The minimum and maximum values that can be expressed by these integers are defined by the use of this parameter, and not by this parameter type definition. No other characters, including white-space characters, are permitted.

Multi-dimensional arrays can be indexed by specifying a range for each dimension separated by a ,. For example, a 2x2 block in a 4x4 matrix could be selected with the range 1:2,0:1. A single element in a multi-dimensional array can be selected by specifying a single number instead of a range. For example, 1,1 specifies selects the [1,1] element in a two dimensional array.

Dimensions are specified in the order that they appear in the ArrayDimensions Attribute. All dimensions shall be specified for a NumericRange to be valid.

All indexes start with 0. The maximum value for any index is one less than the length of the dimension.

Variants

None

None

Index(u32)

A single index

Range(u32, u32)

A range of indices

MultipleRanges(Vec<NumericRange>)

Multiple ranges contains any mix of Index, Range values - a multiple range containing multiple ranges is invalid

Implementations

impl NumericRange

pub fn has_range(&self) -> bool

Check if this is non-empty.

pub fn is_none(&self) -> bool

Check if this range is empty.

impl NumericRange

pub fn new(s: &str) -> Result<Self, NumericRangeError>

Parse a numeric range from a string.

pub fn is_valid(&self) -> bool

Tests if the range is basically valid, i.e. that the min < max, that multiple ranges doesn’t point to multiple ranges

Trait Implementations

impl Clone for NumericRange

fn clone(&self) -> NumericRange

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for NumericRange

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

Formats the value using the given formatter.

impl Default for NumericRange

fn default() -> NumericRange

Returns the “default value” for a type.

impl Display for NumericRange

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

Formats the value using the given formatter.

impl EventField for NumericRange

fn get_value( &self, attribute_id: AttributeId, index_range: &NumericRange, remaining_path: &[QualifiedName], ) -> Variant

Get the variant representation of this field, using the given index range.

impl FromStr for NumericRange

type Err = NumericRangeError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl JsonDecodable for NumericRange

Available on crate feature json only.

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

Decode Self from a JSON stream.

impl JsonEncodable for NumericRange

Available on crate feature json only.

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

Write the type to the provided JSON writer.

impl PartialEq for NumericRange

fn eq(&self, other: &NumericRange) -> 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 SimpleBinaryDecodable for NumericRange

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

Decode Self from the byte stream.

impl SimpleBinaryEncodable for NumericRange

fn byte_len(&self) -> usize

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) -> EncodingResult<()>

Encodes the instance to the write stream.

fn encode_to_vec(&self) -> 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 UaNullable for NumericRange

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 NumericRange

Available on crate feature xml only.

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

Decode a value from an XML stream.

impl XmlEncodable for NumericRange

Available on crate feature xml only.

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

Encode a value to an XML stream.

impl XmlType for NumericRange

Available on crate feature xml only.

const TAG: &'static str = "NumericRange"

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 NumericRange