Struct UpstreamDescriptor

pub struct UpstreamDescriptor<'a> { /* private fields */ }

The upstream target is a type that holds all the information to uniquely identify an upstream target.

Implementations

impl<'a> UpstreamDescriptor<'a>

pub fn new(host: &'a str, port: u16, scheme: Scheme) -> UpstreamDescriptor<'a>

Manually constructs an upstream descriptor.

pub fn from_dsn(dsn: &'a Dsn) -> UpstreamDescriptor<'a>

Given a DSN this returns an upstream descriptor that describes it.

pub fn host(&self) -> &str

Returns the host as a string.

pub fn port(&self) -> u16

Returns the upstream port

pub fn get_url(&self, path: &str) -> Url

Returns a URL relative to the upstream.

pub fn socket_addr(self) -> Result<SocketAddr, UpstreamError>

Returns the socket address of the upstream.

This might perform a DSN lookup and could fail. Callers are encouraged this call this regularly as DNS might be used for load balancing purposes and results might expire.

pub fn scheme(&self) -> Scheme

Returns the upstream’s connection scheme.

pub fn into_owned(self) -> UpstreamDescriptor<'static>

Returns a version of the upstream descriptor that is static.

Trait Implementations

impl<'a> Clone for UpstreamDescriptor<'a>

fn clone(&self) -> UpstreamDescriptor<'a>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for UpstreamDescriptor<'a>

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

Formats the value using the given formatter.

impl Default for UpstreamDescriptor<'static>

fn default() -> UpstreamDescriptor<'static>

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for UpstreamDescriptor<'static>

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for UpstreamDescriptor<'_>

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

Formats the value using the given formatter.

impl FromStr for UpstreamDescriptor<'static>

type Err = UpstreamParseError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<UpstreamDescriptor<'static>, UpstreamParseError>

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

impl<'a> Hash for UpstreamDescriptor<'a>

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

Feeds this value into the given Hasher.

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

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<'a> Ord for UpstreamDescriptor<'a>

fn cmp(&self, other: &UpstreamDescriptor<'a>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl<'a> PartialEq for UpstreamDescriptor<'a>

fn eq(&self, other: &UpstreamDescriptor<'a>) -> 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<'a> PartialOrd for UpstreamDescriptor<'a>

fn partial_cmp(&self, other: &UpstreamDescriptor<'a>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for UpstreamDescriptor<'static>

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl<'a> Eq for UpstreamDescriptor<'a>

impl<'a> StructuralPartialEq for UpstreamDescriptor<'a>