Struct opcua_core::prelude::ExtensionObject
source · [−]pub struct ExtensionObject {
pub node_id: NodeId,
pub body: ExtensionObjectEncoding,
}
Expand description
An extension object holds a serialized object identified by its node id.
Fields
node_id: NodeId
body: ExtensionObjectEncoding
Implementations
sourceimpl ExtensionObject
impl ExtensionObject
sourcepub fn null() -> ExtensionObject
pub fn null() -> ExtensionObject
Creates a null extension object, i.e. one with no value or payload
sourcepub fn object_id(&self) -> Result<ObjectId, ExtensionObjectError>
pub fn object_id(&self) -> Result<ObjectId, ExtensionObjectError>
Returns the object id of the thing this extension object contains, assuming the object id can be recognised from the node id.
sourcepub fn from_encodable<N, T>(node_id: N, encodable: &T) -> ExtensionObject where
N: Into<NodeId>,
T: BinaryEncoder<T>,
pub fn from_encodable<N, T>(node_id: N, encodable: &T) -> ExtensionObject where
N: 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.
sourcepub fn decode_inner<T>(
&self,
decoding_options: &DecodingOptions
) -> Result<T, StatusCode> where
T: BinaryEncoder<T>,
pub fn decode_inner<T>(
&self,
decoding_options: &DecodingOptions
) -> Result<T, StatusCode> 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
sourceimpl BinaryEncoder<ExtensionObject> for ExtensionObject
impl BinaryEncoder<ExtensionObject> for ExtensionObject
sourcefn byte_len(&self) -> usize
fn byte_len(&self) -> 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. Read more
sourcefn encode<S>(&self, stream: &mut S) -> Result<usize, StatusCode> where
S: Write,
fn encode<S>(&self, stream: &mut S) -> Result<usize, StatusCode> where
S: Write,
Encodes the instance to the write stream.
sourcefn decode<S>(
stream: &mut S,
decoding_options: &DecodingOptions
) -> Result<ExtensionObject, StatusCode> where
S: Read,
fn decode<S>(
stream: &mut S,
decoding_options: &DecodingOptions
) -> Result<ExtensionObject, StatusCode> where
S: Read,
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. Read more
fn encode_to_vec(&self) -> Vec<u8, Global>ⓘNotable traits for Vec<u8, A>impl<A> Write for Vec<u8, A> where
A: Allocator,
A: Allocator,
sourceimpl Clone for ExtensionObject
impl Clone for ExtensionObject
sourcefn clone(&self) -> ExtensionObject
fn clone(&self) -> ExtensionObject
Returns a copy of the value. Read more
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source
. Read more
sourceimpl Debug for ExtensionObject
impl Debug for ExtensionObject
sourceimpl<'de> Deserialize<'de> for ExtensionObject
impl<'de> Deserialize<'de> for ExtensionObject
sourcefn deserialize<__D>(
__deserializer: __D
) -> Result<ExtensionObject, <__D as Deserializer<'de>>::Error> where
__D: Deserializer<'de>,
fn deserialize<__D>(
__deserializer: __D
) -> Result<ExtensionObject, <__D as Deserializer<'de>>::Error> where
__D: Deserializer<'de>,
Deserialize this value from the given Serde deserializer. Read more
sourceimpl<'_> From<&'_ Operand> for ExtensionObject
impl<'_> From<&'_ Operand> for ExtensionObject
sourcefn from(v: &Operand) -> ExtensionObject
fn from(v: &Operand) -> ExtensionObject
Converts to this type from the input type.
sourceimpl From<ExtensionObject> for Variant
impl From<ExtensionObject> for Variant
sourcefn from(v: ExtensionObject) -> Variant
fn from(v: ExtensionObject) -> Variant
Converts to this type from the input type.
sourceimpl From<Operand> for ExtensionObject
impl From<Operand> for ExtensionObject
sourcefn from(v: Operand) -> ExtensionObject
fn from(v: Operand) -> ExtensionObject
Converts to this type from the input type.
sourceimpl PartialEq<ExtensionObject> for ExtensionObject
impl PartialEq<ExtensionObject> for ExtensionObject
sourcefn eq(&self, other: &ExtensionObject) -> bool
fn eq(&self, other: &ExtensionObject) -> bool
This method tests for self
and other
values to be equal, and is used
by ==
. Read more
sourcefn ne(&self, other: &ExtensionObject) -> bool
fn ne(&self, other: &ExtensionObject) -> bool
This method tests for !=
.
sourceimpl Serialize for ExtensionObject
impl Serialize for ExtensionObject
sourcefn serialize<__S>(
&self,
__serializer: __S
) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error> where
__S: Serializer,
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. Read more
sourceimpl<'_> TryFrom<&'_ ExtensionObject> for Operand
impl<'_> TryFrom<&'_ ExtensionObject> for Operand
type Error = StatusCode
type Error = StatusCode
The type returned in the event of a conversion error.
sourcefn try_from(
v: &ExtensionObject
) -> Result<Operand, <Operand as TryFrom<&'_ ExtensionObject>>::Error>
fn try_from(
v: &ExtensionObject
) -> Result<Operand, <Operand as TryFrom<&'_ ExtensionObject>>::Error>
Performs the conversion.
impl StructuralPartialEq for ExtensionObject
Auto Trait Implementations
impl RefUnwindSafe for ExtensionObject
impl Send for ExtensionObject
impl Sync for ExtensionObject
impl Unpin for ExtensionObject
impl UnwindSafe for ExtensionObject
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> ToOwned for T where
T: Clone,
impl<T> ToOwned for T where
T: Clone,
type Owned = T
type Owned = T
The resulting type after obtaining ownership.
sourcefn clone_into(&self, target: &mut T)
fn clone_into(&self, target: &mut T)
toowned_clone_into
)Uses borrowed data to replace owned data, usually by cloning. Read more