Struct mz_adapter::session::vars::SystemVar
source · struct SystemVar<V>where
V: Value + Debug + ?Sized + 'static,
V::Owned: Debug + PartialEq + Eq,{
persisted_value: Option<V::Owned>,
parent: &'static ServerVar<V>,
}
Expand description
A SystemVar
is persisted on disk value for a configuration parameter. If unset,
the server default is used instead.
Fields§
§persisted_value: Option<V::Owned>
§parent: &'static ServerVar<V>
Implementations§
Trait Implementations§
source§impl<V> Clone for SystemVar<V>where
V: Value + Debug + ?Sized + 'static + Clone,
V::Owned: Debug + PartialEq + Eq + Clone,
impl<V> Clone for SystemVar<V>where
V: Value + Debug + ?Sized + 'static + Clone,
V::Owned: Debug + PartialEq + Eq + Clone,
source§impl<V> Debug for SystemVar<V>where
V: Value + Debug + ?Sized + 'static + Debug,
V::Owned: Debug + PartialEq + Eq + Debug,
impl<V> Debug for SystemVar<V>where
V: Value + Debug + ?Sized + 'static + Debug,
V::Owned: Debug + PartialEq + Eq + Debug,
source§impl<V> Var for SystemVar<V>where
V: Value + ToOwned + Debug + PartialEq + Eq + ?Sized + 'static,
V::Owned: Debug + PartialEq + Eq,
impl<V> Var for SystemVar<V>where
V: Value + ToOwned + Debug + PartialEq + Eq + ?Sized + 'static,
V::Owned: Debug + PartialEq + Eq,
source§fn value(&self) -> String
fn value(&self) -> String
Constructs a flattened string representation of the current value of the
configuration parameter. Read more
source§fn description(&self) -> &'static str
fn description(&self) -> &'static str
Returns a short sentence describing the purpose of the configuration
parameter.
Auto Trait Implementations§
impl<V: ?Sized> RefUnwindSafe for SystemVar<V>where
V: RefUnwindSafe,
<V as ToOwned>::Owned: RefUnwindSafe,
impl<V: ?Sized> Send for SystemVar<V>where
<V as ToOwned>::Owned: Send,
impl<V: ?Sized> Sync for SystemVar<V>where
<V as ToOwned>::Owned: Sync,
impl<V: ?Sized> Unpin for SystemVar<V>where
<V as ToOwned>::Owned: Unpin,
impl<V: ?Sized> UnwindSafe for SystemVar<V>where
V: RefUnwindSafe,
<V as ToOwned>::Owned: UnwindSafe,
Blanket Implementations§
source§impl<T> CloneDebuggableStorage for Twhere
T: DebuggableStorage + Clone,
impl<T> CloneDebuggableStorage for Twhere
T: DebuggableStorage + Clone,
fn clone_storage(&self) -> Box<dyn CloneDebuggableStorage + 'static, Global>
source§impl<T> CloneableStorage for Twhere
T: Any + Send + Sync + Clone,
impl<T> CloneableStorage for Twhere
T: Any + Send + Sync + Clone,
fn clone_storage(&self) -> Box<dyn CloneableStorage + 'static, Global>
source§impl<T> FutureExt for T
impl<T> FutureExt for T
source§fn with_context(self, otel_cx: Context) -> WithContext<Self>
fn with_context(self, otel_cx: Context) -> WithContext<Self>
source§fn with_current_context(self) -> WithContext<Self>
fn with_current_context(self) -> WithContext<Self>
source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
source§impl<T> IntoRequest<T> for T
impl<T> IntoRequest<T> for T
source§fn into_request(self) -> Request<T>
fn into_request(self) -> Request<T>
Wrap the input message
T
in a tonic::Request
source§impl<T> Pointable for T
impl<T> Pointable for T
source§impl<P, R> ProtoType<R> for Pwhere
R: RustType<P>,
impl<P, R> ProtoType<R> for Pwhere
R: RustType<P>,
source§fn into_rust(self) -> Result<R, TryFromProtoError>
fn into_rust(self) -> Result<R, TryFromProtoError>
See
RustType::from_proto
.source§fn from_rust(rust: &R) -> P
fn from_rust(rust: &R) -> P
See
RustType::into_proto
.