Struct Selector

pub struct Selector(/* private fields */);

Perform selection on a list of expressions

Can be injected into WatchParams or ListParams.

Implementations

impl Selector

pub fn selects_all(&self) -> bool

Indicates whether this label selector matches everything

pub fn extend( &mut self, exprs: impl IntoIterator<Item = Expression>, ) -> &mut Selector

Extend the list of expressions for the selector

use kube::core::{Selector, Expression};
use k8s_openapi::apimachinery::pkg::apis::meta::v1::LabelSelector;

let mut selector = Selector::default();

// Extend from expressions:
selector.extend(Expression::Equal("environment".into(), "production".into()));
selector.extend([Expression::Exists("bar".into()), Expression::Exists("foo".into())].into_iter());

// Extend from native selectors:
let label_selector: Selector = LabelSelector::default().try_into()?;
selector.extend(label_selector);

Trait Implementations

impl Clone for Selector

fn clone(&self) -> Selector

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Selector

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

Formats the value using the given formatter.

impl Default for Selector

fn default() -> Selector

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Selector

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Selector

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

Convert a selector to a string for the API

impl From<Expression> for Selector

fn from(value: Expression) -> Selector

Converts to this type from the input type.

impl FromIterator<(&'static str, &'static str)> for Selector

fn from_iter<T>(iter: T) -> Selector

where T: IntoIterator<Item = (&'static str, &'static str)>,

use kube_core::{Selector, Expression};

let sel: Selector = Some(("foo", "bar")).into_iter().collect();
let equal: Selector = Expression::Equal("foo".into(), "bar".into()).into();
assert_eq!(sel, equal)

impl FromIterator<(String, String)> for Selector

fn from_iter<T>(iter: T) -> Selector

where T: IntoIterator<Item = (String, String)>,

Creates a value from an iterator.

impl FromIterator<Expression> for Selector

fn from_iter<T>(iter: T) -> Selector

where T: IntoIterator<Item = Expression>,

Creates a value from an iterator.

impl IntoIterator for Selector

type IntoIter = IntoIter<<Selector as IntoIterator>::Item>

Which kind of iterator are we turning this into?

type Item = Expression

The type of the elements being iterated over.

fn into_iter(self) -> <Selector as IntoIterator>::IntoIter

Creates an iterator from a value.

impl PartialEq for Selector

fn eq(&self, other: &Selector) -> 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 SelectorExt for Selector

fn matches(&self, labels: &BTreeMap<String, String>) -> bool

Perform a match check on the resource labels

type Search = BTreeMap<String, String>

Collection type to compare with self

impl Serialize for Selector

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 TryFrom<LabelSelector> for Selector

type Error = ParseExpressionError

The type returned in the event of a conversion error.

fn try_from( value: LabelSelector, ) -> Result<Selector, <Selector as TryFrom<LabelSelector>>::Error>

Performs the conversion.

impl Eq for Selector

impl StructuralPartialEq for Selector