package generic

import "k8s.io/kubernetes/pkg/registry/generic"

Package generic provides a generic object store interface and a generic label/field matching type.

Index ¶

• type AttrFunc
• type Matcher
• func MatchOnKey(key string, f func(obj runtime.Object) (bool, error)) Matcher
• func MatcherFunc(f func(obj runtime.Object) (bool, error)) Matcher
• type SelectionPredicate
• func (s *SelectionPredicate) Matches(obj runtime.Object) (bool, error)
• func (s *SelectionPredicate) MatchesSingle() (string, bool)

Types ¶

type AttrFunc ¶

type AttrFunc func(obj runtime.Object) (label labels.Set, field fields.Set, err error)

AttrFunc returns label and field sets for List or Watch to compare against, or an error.

type Matcher ¶

type Matcher interface {
	// Matches should return true if obj matches this matcher's requirements.
	Matches(obj runtime.Object) (matchesThisObject bool, err error)

	// If this matcher matches a single object, return the key for that
	// object and true here. This will greatly increase efficiency. You
	// must still implement Matches(). Note that key does NOT need to
	// include the object's namespace.
	MatchesSingle() (key string, matchesSingleObject bool)
}

Matcher can return true if an object matches the Matcher's selection criteria. If it is known that the matcher will match only a single object then MatchesSingle should return the key of that object and true. This is an optimization only--Matches() should continue to work.

func MatchOnKey ¶

func MatchOnKey(key string, f func(obj runtime.Object) (bool, error)) Matcher

MatchOnKey returns a matcher that will send only the object matching key through the matching function f. For testing! Note: use SelectionPredicate above for real code!

func MatcherFunc ¶

func MatcherFunc(f func(obj runtime.Object) (bool, error)) Matcher

MatcherFunc makes a matcher from the provided function. For easy definition of matchers for testing. Note: use SelectionPredicate above for real code!

type SelectionPredicate ¶

type SelectionPredicate struct {
	Label    labels.Selector
	Field    fields.Selector
	GetAttrs AttrFunc
}

SelectionPredicate implements a generic predicate that can be passed to GenericRegistry's List or Watch methods. Implements the Matcher interface.

func (*SelectionPredicate) Matches ¶

func (s *SelectionPredicate) Matches(obj runtime.Object) (bool, error)

Matches returns true if the given object's labels and fields (as returned by s.GetAttrs) match s.Label and s.Field. An error is returned if s.GetAttrs fails.

func (*SelectionPredicate) MatchesSingle ¶

func (s *SelectionPredicate) MatchesSingle() (string, bool)

MatchesSingle will return (name, true) if and only if s.Field matches on the object's name.

Source Files ¶

doc.go matcher.go

Directories ¶