Struct opcua_server::prelude::string::UAString

pub struct UAString {
    pub value: Option<String>,
}

A string containing UTF-8 encoded characters.

A string can also be a null value, so the string value is optional. When there is no string, the value is treated as null

To avoid naming conflict hell, the String type is named UAString.

Fields

value: Option<String>

Methods

impl UAString

pub fn is_empty(&self) -> bool

Returns true if the string is null or empty, false otherwise

pub fn len(&self) -> isize

Returns the length of the string or -1 for null.

pub fn null() -> UAString

Create a null string (not the same as an empty string).

pub fn is_null(&self) -> bool

Test if the string is null.

Trait Implementations

impl BinaryEncoder<UAString> for UAString

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>(&self, stream: &mut S) -> Result<usize, StatusCode> where
    S: Write, 

Encodes the instance to the write stream.

fn decode<S>(
    stream: &mut S,
    decoding_limits: &DecodingLimits
) -> Result<UAString, StatusCode> where
    S: Read, 

Decodes an instance from the read stream. The decoding limits are 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 to_vec(&self) -> Vec<u8>

impl Clone for UAString

fn clone(&self) -> UAString

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Eq for UAString

impl Serialize for UAString

fn serialize<__S>(
    &self,
    __serializer: __S
) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error> where
    __S: Serializer, 

Serialize this value into the given Serde serializer.

impl Display for UAString

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

Formats the value using the given formatter.

impl Default for UAString

fn default() -> UAString

Returns the "default value" for a type.

impl Hash for UAString

fn hash<__H>(&self, state: &mut __H) where
    __H: Hasher, 

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given [Hasher].

impl AsRef<str> for UAString

fn as_ref(&self) -> &str

Performs the conversion.

impl<'a> From<&'a str> for UAString

fn from(value: &'a str) -> UAString

Performs the conversion.

impl From<UAString> for Variant

fn from(v: UAString) -> Variant

Performs the conversion.

impl From<String> for UAString

fn from(value: String) -> UAString

Performs the conversion.

impl From<UAString> for Identifier

fn from(v: UAString) -> Identifier

Performs the conversion.

impl PartialEq<UAString> for UAString

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

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

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

This method tests for !=.

impl<'de> Deserialize<'de> for UAString

fn deserialize<__D>(
    __deserializer: __D
) -> Result<UAString, <__D as Deserializer<'de>>::Error> where
    __D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.

impl Debug for UAString

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

Formats the value using the given formatter.